ML40CrMo A30404 ML42CrMo - GB /T 6478-2015

Grade	ML40CrMo
China ISC	A30404
Old Grade
Corresponding Standard	GB /T 6478-2015 Steels For Cold Heading And Cold Extruding
Classification	Alloy Steel
Properties	Forgability

ML40CrMo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo
Minimum Value	0.38	0.1	0.6	-	-	0.9	0.15
Maximum Value	0.43	0.3	0.9	0.025	0.025	1.2	0.3

ML40CrMo Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %
d=25 (Sample diameter)	Quenching temperature 830~870°C oil quenching, tempering temperature 500~600°C	≥1080	≥930	≥12	≥45

New and Old Grade Replacement List

ML40CrMo 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"!