ML20Al - GB /T 5953.2-2009

Grade	ML20Al
Corresponding Standard	GB /T 5953.2-2009 Steel Wire for Cold Heading and Cold Forging— Part 2: Not Intended for Heat Treatment
Classification	Carbon Steel

ML20Al Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Al ^ⓐ
Minimum Value	0.18	-	0.3	-	-	0.02
Maximum Value	0.23	0.1	0.6	0.03	0.035	-

ML20Al Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Reduction of Area ψ %	Hardness HBW
d≤3	HD	≥850	≥35
3＜d≤4	HD	≥690	≥40
4＜d≤5	HD	≥570	≥45
5＜d≤25	HD	≥480	≥45	HRB ≤97
d≤25	SALD	450~570	≥65	HRB ≤90

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)

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