ML20MnB - GB /T 5953.1-2009

ML20MnB Chemical Element Composition Content (%)

Component	C	Si ^ⓐ	Mn	P	S	B ^ⓑ	Al ^ⓒ
Minimum Value	0.18	0.1	0.8	-	-	0.0008	0.02
Maximum Value	0.23	0.3	1.1	0.025	0.025	0.0035	-

ML20MnB Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %	Hardness HBW
d≤25	SALD	≤630	≥55	HRB ≤91
d≤25	SA	≤580	≥65	HRB ≤88

Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM/AISI	ISO	EN
ML20MnB GB/T 6478-2015 GB/T 6478-2001	A71204	SWRCHB 320 JIS G3508.1-2010	10B22 ASTM A29/A29M-12 ASTM A510/A510M-13	CE20BG2 ISO 4954-1993	20MnB4 EN 10263-4-2001

ML20MnB 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"!