ML40Cr - GB /T 5953.1-2009

Grade	ML40Cr
Corresponding Standard	GB /T 5953.1-2009 Steel Wire for Cold Heading and Cold Forging— Part 1: Intended for Heat Treatment
Classification	Alloy Steel

ML40Cr Chemical Element Composition Content (%)

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

ML40Cr Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %	Hardness HBW
d≤6	SALD	530~730	≥50
6＜d≤12	SALD	500~650	≥50
12＜d≤25	SALD	480~630	≥50	HRB ≤91
d≤25	SA	430~600	≥55	HRB ≤89

Approximate Comparison Table Cold Heading Steel

China		United States		International Organization for Standardization	Germany		France	Russia	United Kingdom
GB	ISC	ASTM/AISI	UNS	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	BS EN/BS
ML40Cr	A20404	5140	G51400	41Cr4E (C16)	41Cr4	1.7035	38C4 42C4	40Х	3/2

ML40Cr 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"!