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Hardened steel
Production specification
Square-shape steel standard Download
Plate steel standard Download
Billet standard Download
Flat bar standard Download
wire standard Download
tube standard Download
pipe standard Download
Forging standard Download
casting standard Download
sheet standard Download
round bar standard Download
coil standard Download
Bar stock standard Download
profiled bar standard Download
Hardened steel
The term hardened steel is often used for a medium or high carbon steel that has been given the heat treatments of quenching followed by tempering. The quenching results in the formation of metastable martensite, the fraction of which is reduced to the desired amount during tempering. This is the most common state for finished articles such as tools and machine parts. In contrast, the same steel composition in annealed state will be softer as required for forming and machining.
Case hardened articles starting as low carbon steel can also be labeled hardened steel.
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- 201.4305, DIN X8CrNiS18-9, AISI 303
- 17Oilfield Service Companies: Baker Hughes
- 17Steel Company: Shagang Group
- 151.3805, DIN X35Mn18
- 124140 PH
- 10High-strength low-alloy steel
- 61.4120, DIN X20CrMo13
- 4Seamless Steel Round Tube / Pipe
- 41.4748, DIN X85CrMoV18-2
- 4Oilfield Service Companies: FMC Technologies