ML33B - GB /T 28906-2025

Grade	ML33B
Corresponding Standard	GB /T 28906-2025 Hot Rolled Wire Rod for Cold Heading
Classification	Alloy Steel

ML33B Chemical Element Composition Content (%)

Component	C	Si ^①	Mn	P	S	B ^{② ③}	Al ^④
Minimum Value	0.31	0.1	0.6	-	-	0.0008	0.02
Maximum Value	0.36	0.3	0.9	0.025	0.02	0.0035	0.06

ML33B Mechanical Properties

Tensile Strength σ_b Mpa	Reduction of Area ψ %
≤550	≥62

Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China	Japan	United States	International Organization for Standardization	European Standard
GB	JIS	ASTM	ISO	EN
ML33B	SWRCHB334	10B33	33B2	33B2

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!