Grade Q690D under Chinese standard GBT 16270 is a kind of high strength structural steel plate, often delivered in the quenched and tempered condition.
GBT 16270 Q690D steel plates are usually produced with thickness up to 150mm.
GBT 16270 Q690D Chemical Composition
| Grade |
Chemical Composition |
|
Q690D |
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 |
GBT 16270 Q690D Mechanical Property
|
Grade |
Mechanical Property |
|
Q690D |
Yield Strength
mm
Min(Mpa) |
Tensile Strength
mm
Min(Mpa) |
Elongation
Min,% |
|
|
|
≤50 |
＞50
|
100 |
＞100
|
150 |
≤50 |
＞50
|
100 |
＞
100
|
150 |
14 |
|
690 |
650 |
630 |
770-940 |
760-930 |
710-900 |
What's Q690D Stand for?
Q: the first letter of yield strength “屈” in Chinese spelling.
690: the minimum yield strength value in MPa unit.
D: it symbols the steel quality class.
Smelting method of Q690D plates: Oxygen converter or electric furnace smelting.
Shanghai Katalor, a Q690D high strength structural steel plates manufacturer, is only 30 minutes driving time from Pudong International airport to our company. If you have chance to China, we sincerely invite you to visit our factory. We have five big steel processing centers located in Shanghai City, Tianjin City, Qingdao City, Wuhan City and Nanyang City. Every processing center can process steel material 200,000 tons annually, So we have the Q690D steel plates machining capacity and offer the products processing like cutting, drilling, wedding, milling, turning, bending. We have the ability to produce various sizes of Q690D quenched and tempered steel plates. If you need Q690D plates, please be free to contact us.
