ML30 U40302 ML30Mn - GB /T 6478-2015

Grade	ML30
China ISC	U40302
Old Grade
Corresponding Standard	GB /T 6478-2015 Steels For Cold Heading And Cold Extruding
Classification	Carbon Steel
Properties	Forgability

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	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
5(12)≤d≤60(100)	Annealing	≤550			≥59
d=25 (sample diameter)	Normalizing Temperature AC3 +30~50°C	≥490	≥295	≥21	≥50	Hot Rolled State ≤179

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"!