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A blacksmith at work from the early 1900 tweaked.jpg
A blacksmith at work, middle of 20th century
(Taken from a 1970s newspaper article)
Type Profession
Activity sectors Vocation
Competencies Physical strength
Related jobs Tradesman

A blacksmith is a person who creates objects from iron or steel by forging the metal; i.e., by using tools to hammer, bend, and cut. Blacksmiths produce things like wrought iron gates, grills, railings, light fixtures, furniture, sculpture, tools, agricultural implements, decorative and religious items, cooking utensils, horseshoes and weapons.


The process of smithing

Blacksmiths work with iron, the 'black' metal, and recently steel, its derivative. The black color comes from fire scale, a layer of oxides that forms on the surface of the metal during heating. The term 'smith' originates from the word 'smite', which means 'to hit'. Thus, a blacksmith is a person who smites black metal.

Blacksmiths work by heating pieces of wrought iron or steel until the metal becomes soft enough to be shaped with hand tools, such as a hammer, anvil and chisel. Heating is accomplished by the use of a forge fueled by propane, natural gas, coal, charcoal, or coke.

Modern blacksmiths may also employ an oxyacetylene or similar blowtorch for more localized heating. Color is important for indicating the temperature and workability of the metal: As iron is heated to increasing temperatures, it first glows red, then orange, yellow, and finally white; then it melts. The ideal heat for most forging is the bright yellow-orange color appropriately known as a "forging heat." Because they must be able to see the glowing color of the metal, many blacksmiths work in dim, low-light conditions.

The techniques of smithing may be roughly divided into forging (sometimes called "sculpting"), welding, heat treating, and finishing.


Forging is the process in which metal is shaped by hammering. Forging is different from machining in that material is not removed by these; rather the iron is hammered into shape. Even punching and cutting operations (except when trimming waste) by smiths will usually re-arrange metal around the hole, rather than drilling it out as swarf.

There are five basic operations or techniques employed in forging: drawing, shrinking, bending, upsetting, and punching.

These operations generally employ hammer and anvil at a minimum, but smiths will also make use of other tools and techniques to accommodate odd-sized or repetitive jobs.


Drawing lengthens the metal by reducing one or both of the other two dimensions. As the depth is reduced, the width narrowed, or both the piece is lengthened or "drawn out".

As an example of drawing, a smith making a chisel might flatten a square bar of steel, lengthening the metal, reducing its depth but keeping its width consistent.

Drawing does not have to be uniform. A taper can result as in making a wedge or the woodworking chisel blade. If tapered in two dimensions a point results.

Drawing can be accomplished with a variety of tools and methods. Two typical methods using only hammer and anvil would be: hammering on the anvil horn, and hammering on the anvil face using the cross peen of a hammer.

Another method for drawing is to use a tool called a fuller, or the peen of the hammer to hasten the drawing out of a thick piece of metal. The technique is called fullering from the tool. Fullering consists of hammering a series of indentations (with corresponding ridges) perpendicular to the long section of the piece being drawn. The resulting effect will be to look somewhat like waves along the top of the piece. Then the hammer is turned over to use the flat face and the tops of the ridges are hammered down level with the bottoms of the indentations. This forces the metal to grow in length (and width if left unchecked) much faster than just hammering with the flat face of the hammer.


Shrinking, while similar to upsetting, is essentially the opposite process as drawing. As the edge of a flat piece is curved,—as in the making of a bowl shape—the edge will become wavy as the material bunches up in a shorter radius. At this point the wavy portion is heated and the waves are gently pounded flat to conform to the desired shape. If you were to compare the edge of the new shape to the original piece, you would discover that the material is thicker than before. This change in thickness is due to the excess material that formed the waves being pushed into a uniform edge that has a smaller radius than before.


Heating steel to a "forging heat" allows bending as if was hard plasticine: it takes significant but not Herculean effort. Bending can be done with the hammer over the horn or edge of the anvil or by inserting the work into one of the holes in the top of the anvil and swinging the free end to one side. Bends can be dressed and tightened or widened by hammering them over the appropriately-shaped part of the anvil.


Upsetting is the process of making metal thicker in one dimension through shortening in the other. One form is by heating the end of a rod and then hammering on it as one would drive a nail: the rod gets shorter, and the hot part widens. An alternative to hammering on the hot end would be to place the hot end on the anvil and hammer on the cold end.


Punching may be done to create a decorative pattern, or to make a hole. For example, in preparation for making a hammerhead, a smith would punch a hole in a heavy bar or rod for the hammer handle. Punching is not limited to depressions and holes. It also includes cutting, or slitting and drifting: these are done with a chisel.

Combining Processes

The five basic forging processes are often combined to produce and refine the shapes necessary for finished products. For example to fashion a cross-peen hammer head, a smith would start with a bar roughly the diameter of the hammer face, the handle hole would be punched and drifted (widened by inserting or passing a larger tool through it), the head would be cut (punched, but with a wedge), the peen would be drawn to a wedge, and the face would be dressed by upsetting.

In the example of making a chisel, as it is lengthened by drawing it would also tend to spread in width, so a smith would frequently turn the chisel-to-be on its side and hammer it back down—upsetting it—to check the spread and keep the metal at the correct width for the project.

As another example, if a smith needed to put a 90-degree bend in a bar and wanted a sharp corner on the outside of the bend, the smith would begin by hammering an unsupported end to make the curved bend. Then, to "fatten up" the outside radius of the bend, one or both arms of the bend would need to be pushed back into the bend to fill the outer radius of the curve. So the smith would hammer the ends of the stock down into the bend, 'upsetting' it at the point of the bend. The smith would then dress the bend by drawing the sides of the bend to keep it the correct thickness. The hammering would continue—upsetting and then drawing—until the curve had been properly shaped. In the primary operation was the bend, but the drawing and upsetting are done to refine the shape.


Welding is the joining of metal of the same or similar kind of metal

A modern blacksmith has a range of options and tools to accomplish this. The basic types of welding commonly employed in a modern shop include traditional forge welding as well as modern methods, including oxyacetylene and arc welding.

In forge welding the pieces to be welded are heated to what is generally referred to as "welding heat". For mild steel most smiths judge this temperature by color: the metal will glow an intense yellow or white. At this temperature the steel is near molten .

Any foreign material in the weld, such as the oxides or "scale" that typically form in the fire, can weaken it and potentially cause it to fail. Thus the mating surfaces to be joined must be kept clean. To this end a smith will make sure the fire is a reducing fire: a fire where at the heart there is a great deal of heat and very little oxygen. The smith will also carefully shape the mating faces so that as they are brought together foreign material is squeezed out as the metal is joined. To clean the faces, protect them from oxidation, and provide a medium to carry foreign material out of the weld the smith will use flux—typically powdered borax, silica sand, or both.

The smith will first clean the parts to be joined with a wire brush, then put them in the fire to heat. With a mix of drawing and upsetting the faces will be shaped so that when finally brought together the center of the weld will connect first and the connection spread outward under the hammer blows, pushing the flux and foreign material out.

The dressed metal goes back in the fire, is brought near to welding heat, removed from the fire, brushed, flux is applied, and it is returned to the fire. The smith now watches carefully to avoid overheating the metal. There is some challenge to this, because in order to see the color of the metal it must be removed from the fire, and this exposes the metal to air, which can cause it to oxidize rapidly. So the smith might probe into the fire with a bit of steel wire, prodding lightly at the mating faces. When the end of the wire sticks on to the metal is at the right temperature (a small weld has formed where the wire touches the mating face so it sticks on to the metal).

Now the smith moves with rapid purpose. The metal is taken from the fire and quickly brought to the anvil, the mating faces are brought together, the hammer lightly applying a few taps to bring the mating faces into complete contact and squeeze out the flux, and finally returned to the fire again.

The weld was begun with the taps, but often the joint is weak and incomplete, so the smith will again heat the joint to welding temperature and work the weld with light blows to "set" the weld and finally to dress it to the shape.


Depending on the intended use of the piece a blacksmith may finish it in a number of ways:

  • A simple jig (a tool) that the smith might only use a few times in the shop it may get the minimum of finishing: a rap on the anvil to break off scale and a brushing with a wire brush.
  • Files can be employed to bring a piece to final shape, remove burrs and sharp edges, and smooth the surface.
  • The wire brush either as a hand tool or power tool can further smooth , brighten and polish surface.
  • Grinding stones, abrasive paper, and emery wheels can further shape, smooth and polish the surface.
  • There are a range of treatments and finishes to inhibit oxidation of the metal and enhance or change the appearance of the piece.
An experienced smith selects the finish based on the metal and intended use of the item.
  • Finishes include but are not limited to: paint, varnish, bluing, browning, oil, and wax.

Blacksmith's striker

A blacksmith's striker is an assistant (frequently an apprentice), whose job it is to swing a large sledge hammer in heavy forging operations, as directed by the blacksmith. In practice, the blacksmith will hold the hot iron at the anvil (with tongs) in one hand, and indicate where the iron is to be struck by tapping it with a small hammer held in the other hand: the striker then delivers a heavy blow with the sledge hammer where indicated. During the 20th century, this role has been increasingly obviated and automated through the use of trip hammers.

The blacksmith's materials

A blacksmith at work

When iron ore is smelted into usable metal, a certain amount of carbon is usually alloyed with the iron. (Charcoal is almost pure carbon.) The amount of carbon significantly affects the properties of the metal. If the carbon content is over 2%, the metal is called cast iron, because it has a relatively low melting point and is easily cast. It is quite brittle, however, and is therefore not used for blacksmithing. If the carbon content is between 0.25% and 2%, the resulting metal is tool steel, which can be heat treated as discussed above. When the carbon content is below 0.25%, the metal is either "wrought iron" or "mild steel." The terms are never interchangeable. In preindustrial times, the material of choice for blacksmiths was wrought iron. This iron had a very low carbon content, and also included up to 5% of glassy slag. This slag content made the iron very tough, gave it considerable resistance to rusting, and allowed it to be more easily "forge welded," a process in which the blacksmith permanently joins two pieces of iron, or a piece of iron and a piece of steel, by heating them nearly to a white heat and hammering them together. Forge welding is more difficult to do with modern mild steel. Modern steel production, using the blast furnace, cannot produce true wrought iron, so this material is now a difficult-to-find specialty product. Modern blacksmiths generally substitute mild steel for making objects that were traditionally of wrought iron.


Hot metal work from a blacksmith
  • Iron is a naturally occurring metallic element. It is almost never found in its native form (pure iron) in nature. It is usually found as an oxide or sulfide, with many other impurity elements mixed in.
  • Wrought Iron is the purest form of iron generally encountered or produced in quantity. It may contain as little as 0.04% Carbon (by weight). From its traditional method of manufacture, wrought iron has a fibrous internal texture. Quality wrought-iron blacksmithing takes the direction of these fibers into account during forging, since the strength of the material is stronger in line with the grain, than across the grain. Most of the remaining impurities from the initial smelting become concentrated in silicate slag trapped between the iron fibers. This slag produces a lucky side effect during forge-welding. When the silicate melts, it makes wrought-iron self-fluxing. The slag becomes a liquid glass that covers the exposed surfaces of the wrought-iron, preventing oxidation which would otherwise interfere with the successful welding process.
Hammering out a draw bar on the steam drop hammer in the blacksmith shop, Santa Fe Railroad shops, Albuquerque, NM, 1943.
  • Steel is a mixture of Iron and between 0.3% to 1.7% Carbon by weight. The presence of carbon allows steel to assume one of several different crystalline configurations. Macroscopically, this is seen as the ability to "turn the hardness of a piece of steel on and off" through various processes of heat-treatment. If the concentration of carbon is held constant, this is a reversible process. Steel with a higher carbon percentage may be brought to a higher state of maximum hardness.
  • Cast Iron is iron that contains between 2.0% to 6% Carbon by weight. There is so much carbon present, that the hardness cannot be switched off. Hence, cast iron is a brittle metal, which can break like glass. Cast iron cannot be forged.

Steel with below 0.6% Carbon content cannot be hardened enough to make useful hardened-steel tools. Hence, in what follows, wrought-iron, low-carbon-steel, and other soft unhardenable iron varieties will be referred to indiscriminately as just iron.

History, prehistory, religion, and mythology


Wayland's smithy in the centre, Níðuð's daughter Böðvildr to the left, and Níðuð's dead sons hidden to the right of the smithy. Between the girl and the smithy, Wayland can be seen in an eagle fetch flying away. From the Ardre image stone VIII on Gotland

Hephaestus (Latin: Vulcan) was the blacksmith of the gods in Greek and Roman mythology. A supremely skilled artisan whose forge was a volcano, he constructed most of the weapons of the gods, and was himself the god of fire and metalworking.

In Celtic mythology, the role of Smith is held by eponymous (their names do mean 'smith') characters : Goibhniu (Irish myths of the Tuatha Dé Danann cycle) or Gofannon (Welsh myths/ the Mabinogion )

The Anglo-Saxon Wayland Smith, known in Old Norse as Völundr, is a heroic blacksmith in Germanic mythology. The Poetic Edda states that he forged beautiful gold rings with wonderful gems. He was captured by king Níðuðr, who cruelly hamstringed him and imprisoned him on an island. Völundr eventually had his revenge by killing Níðuðr's sons and forging objects to the king from their skulls, teeth and eyes. He then seduced the king's daughter and escaped laughing on wings he himself had forged.

Seppo Ilmarinen, the Eternal Hammerer, blacksmith and inventor in the Kalevala, is an archetypal artificer from Finnish mythology.

Tubal Cain (not to be confused with Cain, brother of Abel) is mentioned in the book of Genesis of the Old Testament (the first book of the Torah) as the original smith.

Before the Iron Age

Gold, Silver, and Copper may all be found in nature in their native states, as reasonably pure metals. It is likely that these were the first metals to be worked by Humans. These metals are all quite malleable, and humans' initial development of hammering techniques was undoubtedly applied to these metals.

During the Chalcolithic era and the Bronze Age, humans in the Mideast learned how to smelt, melt, cast, rivet, and (to a limited extent) forge Copper and Bronze. Bronze is an alloy of Copper and approximately 10% to 20% Tin. Bronze is superior to just copper, by being harder, being more resistant to corrosion, and by having a lower melting point (thereby requiring less fuel to melt and cast). Much of the copper used by the Mediterranean World came from the island of Cyprus. Most of the Tin came from the Cornwall region of the island of Great Britain, transported by sea-born Phoenician and Greek traders.

Copper and Bronze cannot be hardened by heat-treatment, they can only be hardened by work-hardening. To accomplish this, a piece of bronze is lightly hammered for a long period of time. The localized stress-cycling causes the necessary crystalline changes. The hardened bronze can then be ground to sharpen it to make edged tools.

Clocksmiths as recently as the 1800s used work hardening techniques to harden the teeth of brass gears and ratchets. Tapping on just the teeth produced harder teeth, with superior wear-resistance. By contrast, the rest of the gear was left in a softer and tougher state, more capable of resisting cracking.

Bronze is sufficiently corrosion resistant, that artifacts of bronze may last thousands of years, relatively unscathed. Because of this, there are frequently more examples of Bronze Age metal work in museums, than there are from the much younger Iron Age. Buried iron artifacts may completely rust away in less than 100 years. Examples of ancient iron work still extant are very much the exception to the norm.

Iron Age

Still during the mists of prehistory, humans became aware of the metal iron, in the form of meteoric iron. Iron artifacts may be shown to be of meteoric origin by their chemical composition: containing up to 40% Nickel. As this source of this iron is extremely rare and fortuitous, little development of smithing skills peculiar to iron can be assumed to have occurred. That we still possess any such artifacts of meteoric iron may be ascribed to the vagaries of climate, and the increased corrosion-resistance conferred on iron by the presence of nickel.

During the (north) Polar Exploration of the early 1900s (AD), Inuit of northern Greenland were found to be making iron knives from two particularly large nickel-iron meteors. One of these meteors was taken to Washington, D.C., where it was remitted to the custody of the Smithsonian Institution.

The Hittites of Anatolia first discovered or developed the smelting of iron ores around 1500 BC. They seem to have maintained a near monopoly on the knowledge of iron production for several hundred years, but when their empire collapsed during the Eastern Mediterranean upheavals around 1200 BC, the knowledge seems to have escaped in all directions.

In the Iliad of Homer (describing the Trojan War and Bronze Age Greek and Trojan warriors), most of the armor and weapons (swords and spears) are stated to have been of bronze. Iron is not unknown, however, as arrow heads are described as iron, and a "ball of iron" is listed as a prize awarded for winning a competition. The events described probably occurred around 1200 BC, but Homer is thought to have composed this epic poem around 700 BC; so exactitude must remain suspect.

A blacksmith shop in the harbor of Saint John, New Brunswick, Canada in the late 19th century.

When historical records resume after the 1200 BC upheavals and the ensuing Greek Dark Age, iron work (and presumably blacksmiths) seem to have sprung like Athena, fully-grown from the head of Zeus. Very few artifacts remain, due to loss from corrosion, and re-use of iron as a valuable commodity. What information exists indicates that all of the basic operations of blacksmithing were in use as soon as the Iron Age reached a particular locality. The scarcity of records and artifacts, and the rapidity of the switch from Bronze Age to Iron Age, is a reason to use evidence of bronze smithing to infer about the early development of blacksmithing.

Despite being subject to rust, iron replaced bronze as soon as iron-wielding hordes could invade Bronze Age societies and literally slice through their obsolete bronze defenses. Iron is a stronger and tougher metal than bronze, and iron ores are found nearly everywhere. Copper and Tin deposits, by contrast, are scattered and few, and expensive to exploit.

Iron is different from most other materials (including bronze), in that it does not immediately go from a solid to a liquid at its melting point. H2O is a solid (ice) at -1 C (31 F), and a liquid (water) at +1 C (33 F). Iron, by contrast, is definitely a solid at 800 °F (427 °C), but over the next 1,500 °F (820 °C) it becomes increasingly plastic and more "taffy-like" as its temperature increases. This extreme temperature range of variable solidity is the fundamental material property upon which blacksmithing practice depends.

Another major difference between bronze and iron fabrication techniques is that bronze can be melted. The melting point of iron is much higher than that of bronze. In the western (Europe & the Mideast) tradition, the technology to make fires hot enough to melt iron did not arise until the 1500s, when smelting operations grew large enough to require overly large bellows. These produced blast-furnace temperatures high enough to melt partially refined ores, resulting in Cast Iron. Thus cast iron frying pans and cookware did not become possible in Europe until 3000 years after the introduction of iron smelting.

China, in a separate developmental tradition, was producing cast iron at least 1000 years before this.

Although iron is quite abundant, good quality steel remained rare and expensive until the industrial developments of Bessemer process et al. in the 1850s. Close examination of blacksmith-made antique tools clearly shows where small pieces of steel were forge-welded into iron to provide the hardened steel cutting edges of tools (notably in axes, adzes, chisels, etc.). The re-use of quality steel is another reason for the lack of artifacts.

The Romans (who ensured that their own weapons were made with good steel) noted (in the 300s BC) that the Celts of the Po River Valley had iron, but not good steel. The Romans record that during battle, their Celtic opponents could only swing their swords two or three times before having to step on their swords to straighten them.

On the Indian subcontinent, Wootz steel was, and continues to be, produced in small quantities.

Medieval period

A blacksmith monk, from a medieval French manuscript

Prior to the industrial revolution, a "village smithy" was a staple of every town. Factories and mass-production reduced the demand for blacksmith-made tools and hardware.

The original fuel for forge fires was charcoal. Coal did not begin to replace charcoal until the forests of first Britain (during the 1600s), and then the eastern United States of America (during the 1800s) were largely depleted. Coal can be an inferior fuel for blacksmithing, because much of the world's coal is contaminated with sulfur. Sulfur contamination of iron and steel make them "red short", so that at red heat they become "crumbly" instead of "plastic". Coal sold and purchased for blacksmithing should be largely free of sulfur.

(European) blacksmiths before and through the mediaeval era spent a great deal of time heating and hammering iron before forging it into finished articles. Although they were unaware of the chemical basis, they were aware that the quality of the iron was thus improved. From a scientific point of view, the reducing atmosphere of the forge was both removing oxygen (rust), and soaking more carbon into the iron, thereby developing increasingly higher grades of steel as the process was continued.

Industrial era

A sketch of two blacksmiths working at a Traveling Forge during the American Civil War

During the 1700s, agents for the Sheffield cutlery industry scoured the country-side of Britain, offering new carriage springs for old. Springs must be made of hardened steel. At this time, the processes by which steel was produced resulted in an extremely variable product: quality was in no way ensured at the initial point of sale. Those springs which had survived cracking through hard use over the rough roads of the time, were proven to be of a better quality steel. Much of the fame of Sheffield cutlery (knives, shears, etc.) was due to these extreme lengths that the companies went to, in order to ensure that high-grade steel was used in their manufactures.

During the first half of the 1800s, the U.S. government included in their treaties with many Native American tribes, that the U.S. would employ blacksmiths and strikers at Army forts, with the expressed purpose of providing Native Americans with iron tools and repair services.

During the early to mid-1800s both European armies [1] as well as both the U.S. and Confederate armies employed blacksmiths to shoe horses and repair equipment such as wagons, horse tack, and artillery equipment. These smiths primarily worked at a traveling forge that when combined with a limber, comprised wagons specifically designed and constructed as blacksmith shops on wheels to carry the essential equipment necessary for their work.[2][3].

Lathes, patterned largely on their wood-turning counterparts, had been used by some blacksmiths since the middle-ages. During the 1790s Henry Maudslay created the first screw-cutting lathe, a watershed event that signalled the start of blacksmiths being replaced by machinists in factories for the hardware needs of the populace.

Samuel Colt neither invented nor perfected interchangeable parts, but his insistence (and other industrialists at this time) that his firearms be manufactured with this property, was another step towards the obsolescence of metal-working artisans and blacksmiths. (See also Eli Whitney).

High school blacksmith class, Salt Lake City, Utah, Utah, 1915

As demand for their products declined, many more blacksmiths augmented their incomes by taking in work shoeing horses. A shoer-of-horses was historically known as a farrier in English. With the introduction of automobiles, the number of blacksmiths continued to decrease, many former blacksmiths becoming the initial generation of automobile mechanics. The nadir of blacksmithing in the United States was reached during the 1960s, when most of the former blacksmiths had left the trade, and few if any new people were entering the trade. By this time, most of the working blacksmiths were those performing farrier work, so the term blacksmith was effectively co-opted by the farrier trade.

Blacksmiths at the Atchison, Topeka and Santa Fe Railway shops in Topeka, Kansas, 1943

During the 1900s various gases (natural gas, acetylene, etc.) have also come to be used as fuels for blacksmithing. While these are fine for blacksmithing iron, special care must be taken when using them to blacksmith steel. Each time a piece of steel is heated, there is a tendency for the carbon content to leave the steel (decarburization). This can leave a piece of steel with an effective layer of unhardenable iron on its surface. In a traditional charcoal or coal forge, the fuel is really just carbon. In a properly regulated charcoal/coal fire, the air in and immediately around the fire should be a reducing atmosphere. In this case, and at elevated temperatures, there is a tendency for vaporized carbon to soak into steel and iron, counteracting or negating the decarburizing tendency. This is similar to the process by which a case of steel is developed on a piece of iron in preparation for case hardening.

Starting in the 1970s, trends in "do-it-yourself" and "self-sufficiency" led to a renewed interest in traditional blacksmithing. Books and organizations to help beginning blacksmiths abound, including many re-enactment smiths demonstrating the art at historical sites. New Hampshire Blacksmith Joe Tucker worked as a Blacksmith for more than 75 years, and helped to popularize the craft among young metalworkers. Many of the more successful modern blacksmiths produce custom metalwork, and are referred to as Artist-Blacksmiths. Artist-Blacksmiths is not merely a modern phenomenon, however: see Samuel Yellin.

While developed nations saw a decline and re-awakening of interest in blacksmithing, in many developing nations blacksmiths continued doing what blacksmiths have been doing for 3500 years: making and repairing iron and steel tools and hardware for people in their local area.

Notable blacksmiths

Historical people

Jesse Hoover blacksmith shop, Herbert Hoover National Historic Site.

Fictional characters

See also


  1. ^ An Aide-Memoire to the Military Sciences volume 1 by Royal Engineers, British Service, 1845, Col. G.G. Lewis, senior editor
  2. ^ # The Ordnance Manual For The Use Of The Officers Of The Confederate States Army, 1863 reprinted by Morningside Press 1995, ISBN 0-89029-033-4
  3. ^ # The ordnance manual for the use of officers of the United States army, 1861, reprinted by Scholarly Publishing Office, University of Michigan Library, December 22, 2005, ISBN 1425559719

Further reading

  • Andrews, Jack: New Edge of the Anvil, 1994
  • Bealer, Alex W.: The Art Of Blacksmithing (Revised Edition), 1995
  • McRaven, Charles: The Blacksmith's Craft, originally published in 1981 as Country Blacksmithing.
  • Sims, Lorelei: The Backyard Blacksmith - Traditional Techniques for the Modern Smith, 2006

External links

Simple English

A blacksmith is a person who works with iron and steel. The blacksmith hammers hot iron on an anvil to change its shape. Blacksmiths make iron and steel tools.

A smith is a person who works in any metal. A blacksmith works only with iron and steel. A thousand years ago, people only knew about seven metals (iron, gold, silver, copper, tin, lead, and mercury). By color: gold is yellow; copper is red; and silver, tin, lead, and mercury are different gray colors. Iron is also a gray color if you shine it, but usually its surface is covered with a black oxide, which is a kind of rust. This black color forms very fast in a blacksmith's fire. The other metals have light colors, but iron is a dark color, so it is called the black metal in English. A smith who works the black metal is a black-smith.

A farrier works with iron like a blacksmith, but a farrier only makes horseshoes and puts them on horses' feet.

A blacksmith burns coal or charcoal in a special fire, called a forge. A bellows pushes air into the forge, to make the fire burn hotter. The blacksmith puts pieces of iron in the fire to make them hot.

Iron must be very hot to shape with a hammer. Hot iron becomes cold very soon. A blacksmith has only a few seconds to hammer a piece of iron, before it must be put back in the fire to become hot again.


Ways to hammer Iron

There are a few ways to change a piece of iron's shape with a hammer. Here are the most important ways that a blacksmith uses:

  • Bending: hammering a piece of hot iron, to make it curve or to make it have a corner.
  • Drawing: hammering on the sides of a piece of hot iron, to make it longer and thinner.
  • Upsetting: hammering on the end of a piece of hot iron, to make it shorter and fatter.

A punch is a tool like a short stick of iron. The end of the punch is flat.

  • Punching: A blacksmith hammers a punch through a piece of hot iron, to make a hole in the hot iron.

A chisel is a tool like a short stick of iron. The end of the chisel is sharp to cut.

  • Cutting: hammering a chisel through the side of a piece of hot iron, to make two shorter pieces.
  • Splitting: hammering a chisel into the end of a piece of hot iron, to make a stick of iron into a "Y" shape, to make a fork.
  • Rivetting: a rivet is like a machine bolt with a head at both ends. Rivets are used to make different pieces of iron stay together. The blacksmith makes a hole in each piece of iron, where he wants the pieces to come together. A rivet is then put in the holes, and the blacksmith hammers on the rivet to make the heads at each end of the rivet.
  • Welding: making different pieces of iron become one piece of iron. The blacksmith makes the pieces of iron so hot that they almost melt. Then he puts the pieces together and hammers on them so there is no line where they came together. Welding is the hardest thing for a blacksmith to learn and to do.

Hard Iron and Steel

Iron is one of the 92 natural elements.

Steel is iron with a little carbon in it (0.3% to 1.7% carbon by weight).

All metals get harder when a smith hammers or bends them. This is called "work-hardening". If a smith hammers or bends a piece of metal that is already work-hardened, it will crack and break. To make work-hardened metal soft again, so that a smith can hammer and bend it more, the smith anneals the metal.

To anneal iron or steel, a blacksmith heats the metal until it no longer pulls a magnet, and then makes the metal become cold very slowly. Blacksmiths can cover the hot metal with sand, so that it takes hours to become cold. This makes iron or steel very soft.

Steel acts just like iron, until a blacksmith "heat-treats" the steel. This is a special way to make the steel hot and then cold, so that the steel will become hard enough to keep a cutting edge (blade). A blade made from a piece of iron (instead of steel) will very soon become dull and will not cut. Good blades (for knives, chisels, axes, and other tools with cutting edges) are always made of steel, then heat-treated, and then sharpened.

To heat-treat steel, a blacksmith heats the steel until it no longer pulls a magnet, then makes the steel become cold very quickly. A blacksmith does this by putting the hot steel into a bucket of water and moving it around until it is cold. This is called "quenching". When this is finished, the steel will be as hard as it can be. It will be so hard, that if someone hits it or drops it, it can break like glass.

The next step is to "draw the temper" or "temper" the steel, so that it will not break like glass. To temper steel, a blacksmith polishes a part of the steel so that it is smooth and shiny. The blacksmith then slowly heats the steel in the fire. When the steel is between 300 to 650 degrees Fahrenheit, the polished steel will turn different colors. These colors do not glow in the dark; they look like dye on the polished steel. As the steel gets hotter from 300 to 650 degrees F, it will turn through the colors: yellow, then brown, then purple, then blue. Yellow means the steel will still be harder, blue means the steel will be softer (but still hard). When the steel turns the color that the blacksmith wants, he puts the steel into a bucket of water to stop the change. Different tools are tempered to different colors, but it also depends on how much carbon there is in the steel. Usually, stone chisels are tempered to yellow, and axes for trees are tempered to blue, but the blacksmith has to decide.

A blacksmith does not hammer a blade edge thin. A blacksmith hammers the steel so that the edge stays thick. After the "heat-treat" and "temper", stones are used to grind the blade edge to make it sharp.

If a blacksmith has a piece of iron or steel, but does not know which one it is, the blacksmith can heat-treat it like steel. If it does not become hard, then it is not steel. Iron will show the same temper colors as steel, but it will not be hard.

If a blacksmith has an old steel tool, and wants to hammer it into a new different tool, the blacksmith anneals the steel. The steel will then be very soft like iron. The blacksmith can then hammer it into a new tool, and heat-treat and temper it, to make a new, hard steel tool.

A blacksmith must be careful when hammering hardened steel or work-hardened iron, because small pieces can break off and fly, and these can hurt his or her eyes. Many blacksmiths wear plastic safety glasses to keep their eyes safe.

Tools and Things Made by Blacksmiths


The first blacksmiths were Hittites who lived in the country now called Turkey. They started working iron to make tools around 1500 BCE. The ways that tools are made by blacksmiths have changed very little since then.

Around 1850, countries like the United States of America and the United Kingdom made new ways to make steel and tools in factories. Factories now make tools faster, and for less money than blacksmiths. There are now very few blacksmiths in countries that have a lot of factories.

The few blacksmiths that are still in countries with a lot of factories, make iron that is art. These blacksmiths make gates, stair rails, and chairs and tables for outdoors. People buy this iron as art, because each piece is different from the other pieces.

Books to Read

  • Blandford, Percy W. (1988). Practical Blacksmithing and Metalworking, Second Edition. TAB Books, a division of McGraw-Hill, Inc. ISBN 0-8306-2894-0. 
  • Richardson, M.T. (1978 (orig.1889-1891)). Practical Blacksmithing. Crown Publishers, Inc. LOC 77-94507. 
  • Weygers, Alexander G. (1997). The Complete Modern Blacksmith. Berkeley, California: Ten Speed Press. ISBN 0-89815-896-6. 

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