HSS-Automotive ZQS700Z steel Chemical composition %
Grade
|
C
|
Si
|
Mn
|
p
|
S
|
Al
|
Nb
|
V
|
Ti
|
Mo
|
ZQS700Z
|
≤0.10
|
≤0..50
|
≤2.10
|
≤0.025
|
≤0.010
|
0.015
|
≤0.09
|
≤0.20
|
≤0.15
|
≤0.50
|
Remarks : Nb + V + Ti ≤0.22%
HSS-Automotive ZQS700Z 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
|
||||
ZQS700Z
|
750
|
800-950
|
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 .
HSS-Automotive ZQS700Z steel plate application :HSS-Automotive ZQS700Z Hot-rolled high strength steel sheets widely used in wheel, beam, carriage, axle, drive shaft, chassis, suspension and other important parts etc.
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