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	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

Approximate Comparison Table

China		Japan	United States	International Organization for Standardization	Germany		European Standard
GB	ISC	JIS	ASTM	ISO	DIN EN/DIN	W-Nr.	EN	Numerical Grade
ML20Al	U40208	SWRCH20A	1020	CC21A C20E2C	C20C	1.0411	C20C C20E2C	1.0411

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"!