Products
High-strength carbon-carbon structural steel, the steel can be cut middle, cold plastic deformation is low, poor welding, heat treatment, no temper brittleness, but lower hardenability, water and the critical diameter of 13 * 30mm, and when the water quenching cracking tendency. This steel is usually in normalizing or quenching and tempering, or other high-frequency surface hardening heat treatment before use. 

Chemical composition (Wt%)

Supplier hardness

Not heat-treated state, hardness ≤ 241HBW; annealed hardness ≤ 207HBS.

 

Scope of supply

Thickness: 0.15mm-5.0mm

Width: 10mm-250mm

Corresponding to the grade

American AISI / SAE / ASTM standard steel 1050, Japanese JIS standard steel S50C/S53C

Test

GB/T699-1999