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B700L automotive high-strength steel using advanced smelting technology, low inclusion content, pure steel, has good formability and high fatigue properties, it can be used in the manufacture of complex shapes
B700L steel Chemical composition %
|
Grade |
C |
Si |
Mn |
p |
S |
Al |
Nb |
V |
Ti |
Mo |
|
B700L |
≤0.10 |
≤0..50 |
≤2.00 |
≤0.025 |
≤0.010 |
≥0.015 |
≤0.09 |
≤0.20 |
≤0.15 |
|
Remarks : Nb + V + Ti ≤0.22%
B700L steel plate/sheet Mechanical Properties
|
Grade |
Yield strength |
Tensile strength |
Elongation (%) |
180 degree cold bend, diameter |
|
|
Thickness＜3mm |
Thickness≥3mm |
||||
|
B700L steel |
≥700 |
750-950 |
≥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 .
B700L steel size range
|
|
Size (mm) |
|
650 |
2.5~12.0 ×900~1600 |
|
|
CE C,% |
CE |
|
B700L |
≤0.08 |
0.34 |
CE = C + Mn/6 + (Cu + Ni)/15 + (Cr + Mo + V)/5
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Related products : B650L steel , B600L steel , 700L-Z steel , B750L steel , ZQS700L steel