B520JJ - Q/BQB 130-2003

Grade	B520JJ
Corresponding Standard	Q/BQB 130-2003 Primary Rolled Slabs
Classification	Carbon Steel

B520JJ Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Cu	Nb
适用成品板厚3~9mm	Minimum Value	0.13	-	1	-	-	0.2	-
适用成品板厚3~9mm	Maximum Value	0.22	0.25	1.5	0.035	0.03	-	0.04

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.

B520JJ Corresponding Standards(Same grade name, different standards)

1	Q/BQB 303-2018
	B520JJ
2	Q/BQB 130-2003
	B520JJ

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