ML15Mn L20158 - GB T 6478-2001

Grade	ML15Mn
China ISC	L20158
Corresponding Standard	GB T 6478-2001 Steels for cold heading and cold extruding
Classification	Alloy Steel

ML15Mn Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr ^*	Ni ^*	Cu ^*
Minimum Value	0.14	0.2	1.2	-	-	-	-	-
Maximum Value	0.2	0.4	1.6	0.035	0.035	0.2	0.2	0.2

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.

ML15Mn 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 %
Sample diameter d=25	Quenching temperature 880~900°C, water quenching, tempering temperature 180~220°C	≥880	≥705	≥9	≥40

ML15Mn Corresponding Standards(Same grade name, different standards)

1	GB T 6478-2001
	ML15Mn L20158
2	GB /T 6478-2015
	ML15Mn L20151
3	GB /T 5953.1-2009
	ML15Mn
4	Q/OHAB 113-2020
	ML15Mn

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