Q-BQB 310 steel plate

Q-BQB 310-2009 standard specifies hot rolled steel sheets and strips for automobile structural use. There are steel grades SAPH310, SAPH370, SAPH400, SAPH440, QStE340TM, QStE380TM under this specification. Q-BQB 310 steel plates and strips are produced with thickness up to 14mm. These hot rolled steel products are available in plates, sheets and strips.

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Steel Properties

Q-BQB 310 steel plate chemical composition(%):

Grade	C max	Si max.	Mn max.	P max.	S max.	Alt min.	Others
SAPH310	0.10	0.30	0.50	0.035	0.035	0.010	-
SAPH370	0.21	0.30	0.75	0.035	0.035	0.010
SAPH400	0.21	0.30	1.40	0.030	0.025	0.010
SAPH440	0.21	0.30	1.50	0.030	0.025	0.010
QStE340TM	0.12	0.50	1.30	0.030	0.025	0.015	Nb ≤0.09; V≤0.20; Ti≤0.15
QStE380TM	0.12	0.50	1.40	0.030	0.025	0.015	Nb ≤0.09; V≤0.20; Ti≤0.15

Q-BQB 310 steel plate mechanical properties:

Grade	Yield Strength (MPa) min.			Tensile Strength (MPa) min.	Elongation % min.
	Thickness(mm)				Thickness(mm)
	t<6.0	6≤t<8.0	8.0≤t≤25.4		1.6≤t<2.0	2.0≤t<2.5	2.5≤t<t3.15	3.15≤t<4.0	4.0≤t<6.3	6.3≤t≤25.4
SAPH310	185	185	175	310	33	34	36	38	40	41
SAPH370	225	225	215	370	32	33	35	36	37	38
SAPH400	255	235	235	400	31	32	34	35	36	37
SAPH440	305	295	275	440	29	30	32	33	34	35

Q-BQB 310 steel plate equivalent grades:

JIS G3113	Q-BQB 310
SAPH310	SAPH310
SAPH370	SAPH370
SAPH400	SAPH400
SAPH440	SAPH440

Application

Q-BQB 310 steel plate application:
Q-BQB 310 hot-rolled steel sheets and strips are widely used for automotive structures like car frame, wheels and other automotive structural parts, mainly for automobile panels, automotive architecture, and other products.

BBN Group recommends Q-BQB 310 steel plate to help you understand the detailed specifications of BBN Group products and the content of services. You can also view related cases and videos, you can also view all BBN Group products.

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