ML30MnB A71304 - GB /T 28906-2025

Grade	ML30MnB
China ISC	A71304
Corresponding Standard	GB /T 28906-2025 Hot Rolled Wire Rod for Cold Heading
Classification	Alloy Steel
Properties	Forgability

ML30MnB Chemical Element Composition Content (%)

Component	C	Si ^①	Mn	P	S	B ^{② ③}	Al ^④
Minimum Value	0.28	0.1	0.9	-	-	0.0008	0.02
Maximum Value	0.33	0.3	1.2	0.025	0.02	0.0035	0.06

ML30MnB Mechanical Properties

Tensile Strength σ_b Mpa	Reduction of Area ψ %
≤570	≥61

Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

ML30MnB 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"!