HSS-Automotive QSTE650TM,HSS-Automotive QSTE650TM steel,HSS-Automotive QSTE650TM steel plate supplier

HSS-Automotive QSTE650TM steel for automobile beams have high strength and good bending performance, which is suitable for beam parts.

HSS-Automotive QSTE650TM steel Chemical composition %

Grade	C	Si	Mn	p	S	Al	Nb	V	Ti	Mo
QSTE650TM	≤0.10	≤0..50	≤2.00	≤0.025	≤0.010	≥0.015	≤0.09	≤0.20	≤0.15

Remarks : Nb + V + Ti ≤0.22%

HSS-Automotive QSTE650TM steel Mechanical Properties

Grade	Yield strength (MPa)	Tensile strength (MPa)	Elongation (%)		180 degree cold bend, diameter
			Thickness＜3mm Lo=80mm, b=20mm	Thickness≥3mm L0=5.65√S0
QSTE650TM	≥650	700-880	≥10	≥12	2.0a

Remarks:
1 . The yiels strength of 650MPa and 700MPa with thickness ＞8mm can be 20MPa lower
2 . Samples for the tensile test are taken in rolling direction. Samples for cold bend test are taken transversely .

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