St 37-3 - Q/BQB 130-2003

Grade	St 37-3
Corresponding Standard	Q/BQB 130-2003 Primary Rolled Slabs
Classification	Carbon Steel

St 37-3 Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Al
适用成品板厚<4mm	Minimum Value	0.04	-	0.2	-	-	0.01
适用成品板厚<4mm	Maximum Value	0.13	0.08	0.7	0.035	0.03	-

	Component	C	Si	Mn	P	S	Al
适用成品板厚4~<7mm	Minimum Value	0.04	-	0.4	-	-	0.01
适用成品板厚4~<7mm	Maximum Value	0.13	0.08	0.9	0.035	0.03	-

	Component	C	Si	Mn	P	S	Al
适用成品板厚7~<13mm	Minimum Value	0.04	-	0.6	-	-	0.01
适用成品板厚7~<13mm	Maximum Value	0.13	0.12	1.1	0.035	0.03	-

	Component	C	Si	Mn	P	S	Al
适用成品板厚13~<18mm	Minimum Value	0.08	-	0.6	-	-	0.01
适用成品板厚13~<18mm	Maximum Value	0.17	0.12	1.1	0.035	0.03	-

	Component	C	Si	Mn	P	S	Al
适用成品板厚18~<25.4mm	Minimum Value	0.08	-	0.8	-	-	0.01
适用成品板厚18~<25.4mm	Maximum Value	0.17	0.12	1.3	0.035	0.03	-

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.

St37-3 Corresponding Standards(Same grade name, different standards)

1	DIN 17100-1980
	St37-3 1.0116
2	DIN 1652-2-1990
	St37-3 1.0116
3	Q/BQB 130-2003
	St 37-3

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