ML30 - GB /T 5953.1-2009

ML30 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.28	0.1	0.6	-	-
Maximum Value	0.33	0.3	0.9	0.025	0.025

ML30 Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %	Hardness HBW
d≤6	SALD	490~690	≥55
6＜d≤12	SALD	470~650	≥55
12＜d≤25	SALD	450~600	≥50	HRB ≤89
d≤25	SA	380~560	≥60	HRB ≤86

Approximate Comparison Table Cold Heading Steel

China		Taiwan, China	Japan	South Korea	United States		International Organization for Standardization	France	Russia	United Kingdom
GB	ISC	CNS	JIS	KS	ASTM/AISI	UNS	ISO	NF EN/NF	GOST	BS EN/BS
ML30	U40302	SWRCH30K	SWRCH30K	SWRCH30K	1030	G10300	CE28E4 (C2)	XC32 FR33	30	1/1

ML30 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"!