GB/T 16270 Q690C carbon steel plate high strength welded structural
- Material: Carbon and alloy steel
- Desprition: GB/T 16270 Q690C carbon steel plate belongs to high strength welded structural steel. Where Q stands for yield strength and 690 stands for yield strength value Q690 steel plate with different grades at the back indicating the impact temperature of Q690. T
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Product Description:
GB/T 16270 Q690C carbon steel plate belongs to high strength welded structural steel. Where Q stands for yield strength and 690 stands for yield strength value Q690 steel plate with different grades at the back indicating the impact temperature of Q690. The impact of grade D steel plate is - 20℃. The impact of Grade E steel plate is - 40℃. Impact of GB/T 16270 Q690C carbon steel plate is 0℃.
GB/T 16270 Q690C carbon steel plate chemical composition
| Grade |
Chemical Composition |
||||||||||||
|
Q690C |
The Element Max (%) |
||||||||||||
|
C |
Si |
Mn |
P |
S |
Cu |
Cr |
Ni |
Mo |
B |
V |
Nb |
Ti |
|
|
0.20 |
0.80 |
1.80 |
0.025 |
0.015 |
0.50 |
1.50 |
2.00 |
0.70 |
0.0050 |
0.12 |
0.06 |
0.05 |
|
GB/T 16270 Q690C carbon steel plate mechanical properties
| Grade |
Mechanical Property |
||||||
|
Q690C |
Yield Strength |
Tensile Strength |
Elongation Min,% |
||||
|
≤50 |
＞50-100 |
＞100- |
≤50 |
＞50-100 |
＞ |
14 |
|
|
690 |
650 |
630 |
770-940 |
760-930 |
710-900 |
||
GB/T 16270 Q690C carbon steel plate has high yield strength and tensile strength, which is widely used in coal mine machinery and engineering machinery. Such as hydraulic support, port crane, flat transporter, etc.
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