SNCM 420 SNCM 23 - JIS G 4103-1979

Grade	SNCM 420
Old Grade
Corresponding Standard	JIS G 4103-1979 Nickel Chromium Molybdenum Steel
Brand/Supplier	Japan -> NSSC
Classification	Alloy Steel

SNCM 420 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.17	0.15	0.4	-	-	0.4	1.6	-	0.15
Maximum Value	0.23	0.35	0.7	0.03	0.03	0.65	2	0.3	0.3

SNCM 420 Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Double Quenching and Tempering	≥980.7	≥15	≥40	293~375	≥69

New and Old Grade Replacement List

SNCM420 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!