ML15MnB A71154 - GB /T 28906-2025

Grade	ML15MnB
China ISC	A71154
Corresponding Standard	GB /T 28906-2025 Hot Rolled Wire Rod for Cold Heading
Classification	Alloy Steel
Properties	Forgability

ML15MnB Chemical Element Composition Content (%)

Component	C	Si ^①	Mn	P	S	B ^{② ③}	Al ^④
Minimum Value	0.15	0.1	1.2	-	-	0.0008	0.02
Maximum Value	0.2	0.3	1.5	0.025	0.02	0.0035	0.06

ML15MnB Mechanical Properties

Tensile Strength σ_b Mpa	Reduction of Area ψ %
≤480	≥63

1 Approximate Comparison Table Cold Heading Steel

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 Steel for Cold Heading and Cold Extrusion

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 Steel for Cold Heading and Cold Extrusion

ML15MnB Corresponding Standards(Same grade name, different standards)

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