ML15MnVB A73154 - GB T 6478-2001

Grade	ML15MnVB
China ISC	A73154
Corresponding Standard	GB T 6478-2001 Steels for cold heading and cold extruding
Classification	Alloy Steel

ML15MnVB Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr ^*	Ni ^*	Cu ^*	V	B	Al ^ⓐ
Minimum Value	0.13	-	1.2	-	-	-	-	-	0.07	0.0005	0.02
Maximum Value	0.18	0.3	1.6	0.035	0.035	0.2	0.2	0.2	0.12	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.

ⓐ The total aluminum content in the steel; if the acid-soluble aluminum content is determined to be not less than 0.015%, it shall be considered as meeting this standard.
* Residual element content in the steel.

ML15MnVB 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 %	Hardness HBW
Sample diameter d=25	quenched 860~900°C, oil cooling；tempered 340~380°C	≥900	≥720	≥10	≥45	Hot Rolled Brinell Hardness HBS ≤207

ML15MnVB Corresponding Standards(Same grade name, different standards)

1	GB T 6478-2001
	ML15MnVB A73154
2	GB /T 6478-2015
	ML15MnVB A73154
3	Q/BQB 517-2018
	ML15MnVB
4	GB /T 28906-2012
	ML15MnVB A73154
5	GB /T 5953.1-2009
	ML15MnVB

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