ML20Al U40208 - GB /T 6478-2015

Grade	ML20Al
China ISC	U40208
Corresponding Standard	GB /T 6478-2015 Steels for Cold Heading and Cold Extruding
Classification	Carbon Steel
Properties	Good Forgability

ML20Al Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Al ^a
Minimum Value	0.18	-	0.3	-	-	0.02
Maximum Value	0.23	0.1	0.6	0.035	0.035	-

ML20Al Mechanical Properties

diameter d mm	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
5（12）≤d≤60（100）	Hot Rolling	≤580			≥45
5（12）≤d≤60（100）	Annealing	≤490			≥63
d=25 (sample diameter)	Heat Treated	520~820	≥320	≥11		Hot Rolled State ≤156

1 Approximate Comparison Table

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM	ISO	EN	Numerical Grade
ML20Al	U40208	SWRCH20A	1020	CC21A	C20C	1.0411

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China	Japan	International Organization for Standardization	European Standard
GB	JIS	ISO	EN	Numerical Grade
ML20Al	SWRCH22A	C20C	C20C	1.0411

3 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China		Japan	United States	International Organization for Standardization	European Standard
YB	GB	JIS	ASTM	ISO	EN
QML20Al	ML20Al	SWRCH20A	1020	C20E2C	C20E2C

4 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
ML20Al	SWRCH20A	1020	C20E2C	C20E2C

ML20Al 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"!