This stainless steel was developed as an improved version of 440C. It has been overshadowed by CPM154, which has a similar composition and is made using particle metallurgy.
CPM154, RWL34, ATS-34, 14-4 and BG42 are shown in the table above for comparison purposes.
Heat Treating Information:Preheat: Heat to 1400° and equalize.
Austenitize: Ramp to 1900-2000°F and hold at temperature for 30-60 minutes. Oil or plate or air quench to below 125°F.
Temper: Twice at 400-1200°F for 2 hours minimum each time. Tempering at 800-1100°F will result in a minor reduction in both corrosion resistance and toughness.
Cryogenic Treating: After the first temper may improve long term dimensional stability by transforming retained austenite. Cryogenic treatment must be followed by a temper.
Heat Treating Services:
Blade Steel Information & Composition
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