Q-BQB 310 QStE340TM automobile structural plates and sheets

Q-BQB 310 QStE340TM material is a Chinese automobile structure steel grade. It is often produced in hot rolled condition. In order to improve the performance of the steel, other alloying elements can be added as required. One or more alloy elements of Nb, V, Ti can be added to steel, but Nb+V+Ti ≤0.22.
Material: QStE340TM
Standard: Q-BQB 310-2009
Category: hot rolled steel plates, strips and sheets for automobile structural use
Chemical composition(%) of QStE340TM steel table 1

Grade	C max	Si max.	Mn max.	P max.	S max.	Alt min.	Other
QStE340TM	0.12	0.50	1.30	0.030	0.025	0.015	Nb ≤0.09; V≤0.20; Ti≤0.15

Mechanical properties of QStE340TM steel table 2

Yield Strength (MPa) min.	Tensile Strength (MPa)	Elongation % min.
-	-	t<3mm	3mm≤t
340	420-540	19	25

QStE340TM steel equivalent

EN 10149	Q-BQB 310-2009	SEW092:95
S355MC	QStE340TM	QStE360TM

 
Our QStE340TM steel plates and sheets are in large stock each month. We can supply various sizes and shapes according to our customer’s request. Based on these stock source, our advantage industry spread into steel process like: cutting ( any size and any shape ) drilling, welding, milling, machining and steel structure.
 
For application, Q-BQB 310-2009 QStE340TM steel sheets and strips have good cold forming ability. They are suitable for automobile structural parts such as automobile beams, beams, etc. that require good cold forming properties and have high or high strength requirements.