ML35MnB A71354 - GB T 6478-2001

Grade	ML35MnB
China ISC	A71354
Corresponding Standard	GB T 6478-2001 Steels for cold heading and cold extruding
Classification	Alloy Steel

ML35MnB Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr ^*	Ni ^*	Cu ^*	B	Al ^ⓐ
Minimum Value	0.32	-	1.1	-	-	-	-	-	0.0005	0.02
Maximum Value	0.39	0.4	1.4	0.035	0.035	0.2	0.2	0.2	0.0035	-

①By agreement between the supplier and the purchaser, other grades of cold heading and cold extrusion steel may be supplied.
②Permissible deviations in the chemical composition of the steel shall comply with the relevant provisions of GB/T 222-1984.

ML35MnB Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %
Steel	Annealing	≤600			≥60
Sample diameter d=25	Normalizing temperature 860~890°C, Quenching temperature 840~880°C oil cooling, Tempering temperature 550~660°C	≥800	≥650	≥12

Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM	ISO	EN
ML35MnB GB/T 6478-2015 GB/T 6478-2001	A71354	SWRCHB 734 JIS G3508.1-2010	15B36	35MnB5E ISO 4954-1993	37MnB5 EN 10263-4-2001

ML35MnB Corresponding Standards(Same grade name, different standards)

1	GB T 6478-2001
	ML35MnB A71354
2	GB /T 6478-2015
	ML35MnB A71354
3	GB /T 28906-2012
	ML35MnB A71354
4	GB /T 5953.1-2009
	ML35MnB
5	GB /T 28906-2025
	ML35MnB A71354

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