50Mn18Cr4WN - JB /T 7029-1993

Grade	50Mn18Cr4WN
Corresponding Standard	JB /T 7029-1993 Specification for Nonmagnetic Retaining Rings Forgings Used Below 50MW Turbine Generator
Classification	Alloy Steel

50Mn18Cr4WN Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	N	W
Minimum Value	0.4	0.3	17	-	-	3	0.08	0.7
Maximum Value	0.6	0.8	19	0.08	0.025	5	-	1.2

50Mn18Cr4WN Mechanical Properties

Forging grade	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %
Ⅰ	≥735	≥640	≥20	≥35
Ⅱ	≥835	≥735	≥18	≥30
Ⅲ	≥885	≥785	≥16	≥30

50Mn18Cr4WN Corresponding Standards(Same grade name, different standards)

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