
High-carbon steel has approximately 0.60 to 1.00% carbon content. Hardness is higher than the other grades but ductility decreases. They are almost always used in a hardened and tempered condition and, as such, are especially wear resistant and capable of holding a sharp cutting edge. Therefore, high carbon steels could be used for springs, rope wires, hammers, screwdrivers, wrenches and knives. The 10xx series (e.g. 1095 steel) is the most popular choice for carbon steel used in knives as well as katanas. AISI 1095 carbon steel is brittle, and has high hardness and strength. 1095 steel, when used in knives, holds a great edge and is very easy to sharpen. However, the properties of this type of steel give it a tendency to easily rust if not oiled and deliberately cared for.
Price of High-carbon Steel
It is difficult to know the exact cost of the different materials because it strongly depends on many variables such as:
- the type of product you would like to buy
- the amount of the product
- the exact type of material
Raw materials prices change daily. They are primarily driven by supply, demand and energy prices.
However, as a rule of thumb, stainless steels cost four to fives times much as carbon steel in material costs. Carbon steel is about $500/ton, while stainless steel costs about $2000/ton. The more alloying elements the steel contains, the more expensive it is. Based on that rule, it is logical to assume that the 316L austenitic stainless steel and the 13% Cr martensitic stainless steel will cost less than the 22% Cr and the 25% Cr duplex stainless steels. The nickel-based steels would probably cost at least around the price of the duplex stainless steels. There are obviously numerous kinds of steels from low to high carbon and a wide range of evaluations of stainless steels that change immensely in expense. For example, Inconel 600 (registered trademark of Special Metals), which is one of a family of austenitic nickel-chromium-based superalloys costs about $40000/ton.
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