B550L - Q/BQB 130-2003

Grade	B550L
Corresponding Standard	Q/BQB 130-2003
Classification	Carbon Steel

B550L Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S
适用成品板4~8mm	Minimum Value	-	-	-	-	-
适用成品板4~8mm	Maximum Value	0.16	0.5	1.6	0.03	0.025

①Deoxidation method : C--Cap steel；A--aluminum-killed steel；G-aluminum--silicon killed steel；K--silicon killed steel
②For thick plates (thickness ≥ 15mm), the slabs should be aluminum-silicon killed steel slabs.

B550L Corresponding Standards(Same grade name, different standards)

1	Q/BQB 310-2014
	B550L
2	Q/BQB 130-2003
	B550L

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!