ML15MnB A71154 - GB /T 6478-2015

Grade	ML15MnB
China ISC	A71154
Corresponding Standard	GB /T 6478-2015 Steels For Cold Heading And Cold Extruding
Classification	Alloy Steel
Properties	Forgability

ML15MnB Chemical Element Composition Content (%)

Component	C	Si ^c	Mn	P	S	B ^b	Al ^a
Minimum Value	0.14	0.1	1.2	-	-	0.0008	0.02
Maximum Value	0.2	0.3	1.6	0.025	0.025	0.0035	-

ML15MnB 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 860~890°C water quenching, tempering temperature 200~240°C	≥1130	≥930	≥9	≥45

1 Approximate Comparison Table

China		Japan	United States		International Organization for Standardization	France
GB	ISC	JIS	ASTM/AISI	UNS	ISO	NF EN/NF
ML15MnB	A71154	SWRCHB620	1518	G15180	CE20BG2 (E2)	20MB5

2 Approximate Comparison Table

China	Japan	South Korea	International Organization for Standardization	United Kingdom
GB	JIS	KS	ISO	BS EN/BS
ML15MnB	SWRCHB620	SWRCHB620	CE20BG2	9/0

3 Approximate Comparison Table

ML15MnB 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"!