ML37CrB A20374 - GB /T 6478-2015

Grade	ML37CrB
China ISC	A20374
Corresponding Standard	GB /T 6478-2015 Steels for Cold Heading and Cold Extruding
Classification	Alloy Steel
Properties	Forgability

ML37CrB Chemical Element Composition Content (%)

Component	C	Si ^{^c}	Mn	P	S	Cr	B ^{^b}	Al ^{^a}
Minimum Value	0.34	0.1	0.5	-	-	0.2	0.0008	0.02
Maximum Value	0.41	0.3	0.8	0.025	0.025	0.4	0.0035	-

ML37CrB 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 %
5(12)≤d≤60(100)	Annealing	≤600			≥60
d=25 (sample diameter)	Normalizing temperature 855~885°C, Quenching temperature 835~875°C water or oil cooling, Tempering temperature 550~660°C	≥750	≥600	≥12

Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China		International Organization for Standardization
GB	ISC	ISO
ML37CrB GB/T 6478-2015	A20374	37CrB1E ISO 4954-1993

ML37CrB 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"!