ZQS700Z,ZQS700Z steel
ZQS700Z steel for automobile beams have high strength and good bending performance, which is suitable for beam parts.
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%
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 .
|
Grade |
Size (mm) |
|
ZQS700Z |
3.0~12.0 ×900~1600 |
ZQS700Z steel plate application :
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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Related products : QSTE700TM steel, QSTE650TM steel, QSTE600TM steel, QSTE550TM steel, 700L-Z steel