50Mn18Cr4WN - JB /T 1268-2002

Grade	50Mn18Cr4WN
Corresponding Standard	JB /T 1268-2002 Technical conditions for Non-magnetic retaining ring forgings of 50MW - 200MW steam turbine generators
Classification	Alloy Steel

50Mn18Cr4WN Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	N	W
Minimum Value	0.4	0.3	17	-	-	3.5	-	0.7
Maximum Value	0.6	0.8	19	0.06	0.025	5	0.08	1.2

50Mn18Cr4WN Mechanical Properties

Forging Class	Test Temperature	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %
Ⅰ		≥895	≥760	≥25	≥35
Ⅱ		≥965	≥825	≥20	≥30

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

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