Brief Introduction of Steel Materials

An alloy made up primarily of iron and carbon, steel is known for its high tensile strength and low costs. The combination of these characteristics has made it a ubiquitous material in the construction, infrastructure, automotive, maritime, tooling, manufacturing and defense industries, among others.

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Information of Steel

Features Info
Subtypes 4140, 4130, A514, 4340
Process CNC machining, injection molding, sheet metal fabrication
Tolerance With drawing: as low as +/- 0.005 mm No drawing: ISO 2768 medium
Applications Fixtures and mounting plates; draft shafts, axles, torsion bars
Finishing Options Black Oxide, ENP, Electropolishing, Media Blasting, Nickel Plating, Powder Coating, Tumble Polishing, Zinc Plating

Available Steel Subtypes

Subtypes Yield Strength Elongation at Break
Hardness Density
1018 Low Carbon Steel 60,000 psi 15% Rockwell B90 7.87 g/㎤ 0.284 lbs / cu. in.
4140 Steel 60,000 psi 21% Rockwell C15 7.87 g/㎤ 0.284 lbs / cu. in.
1045 Carbon Steel 77,000 psi 19% Rockwell B90 7.87 g/㎤ 0.284 lbs / cu. in.
4130 Steel 122,000 psi 13% Rockwell C20 7.87 g/㎤ 0.284 lbs / cu. in.
A514 Steel 100,000 psi 18% Rockwell C20 7.87 g/㎤ 0.284 lbs / cu. in.
4340 Steel 122,000 psi 13% Rockwell C20 7.87 g/㎤ 0.284 lbs / cu. in.

General Information for Steel

Steel, alloy of iron and carbon in which the carbon content ranges up to 2 percent (with a higher carbon content, the material is defined as cast iron). By far the most widely used material for building the world’s infrastructure and industries, it is used to fabricate everything from sewing needles to oil tankers. In addition, the tools required to build and manufacture such articles are also made of steel. As an indication of the relative importance of this material, iThe main reasons for the popularity of steel are the relatively low cost of making, forming, and processing it, the abundance of its two raw materials (iron ore and scrap), and its unparalleled range of mechanical properties.

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