28B2 1.5510 - EN 10263-4-2001

Grade	28B2
European Standard Steel Grade	1.5510
Corresponding Standard	EN 10263-4-2001
Classification	Alloy Steel

28B2 Chemical Element Composition Content (%)

Component	C	Si ^①	Mn	P	S	Cr ^②	Cu	B
Minimum Value	0.25	-	0.6	-	-	-	-	0.0008
Maximum Value	0.3	0.3	0.9	0.025	0.025	0.3	0.25	0.005

1 Approximate Comparison Table structural alloy steel

2 Approximate Comparison Table

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM/AISI	ISO	EN
ML30B GB/T 6478-2015 ML28B GB/T 6478-2001	A70304	SWRCHB 331 JIS G3508-1	10B30 ASTM A29/A29M-12 ASTM A510/A510-13	CE28B ISO 4954-1993	28B2 EN 10263-4-2001

3 Approximate Comparison Table

International Organization for Standardization	European Standard
ISO	EN	Numerical Grade
28B2	28B2	1.5510

28B2 Corresponding Standards(Same grade name, different standards)

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