Hot Rolled Q690 HSLA Steel Plate
Q690 is a kind of low alloy high-strength structural steel, which consists of Q+number+quality grade symbol+deoxygenation method symbol.The "Q" in Q690 stands for the yield point of the steel, and "690" indicates the yield point value in MPa.For example, Q690D indicates that the yield stress (σs) is 690 MPa, and the grade is D structural steel. Q690D indicates that the yield stress (σs) is 690 MPa, and the grade is structural steel of grade D. The commonly used grades of Q690 are D and E. The grade of Q690 is also available in the following grades.
q690D high strength low alloy steel plate chemical composition
|
Grade |
Chemical requirement or element Max % |
||||||||||||
|
|
C |
Si |
Mn |
P |
S |
Cu |
Cr |
Ni |
Mo |
B |
V |
Nb |
Ti |
|
Q690D |
0.2 |
0.8 |
1.7 |
0.025 |
0.015 |
0.5 |
1.5 |
2 |
0.7 |
0.005 |
0.12 |
0.06 |
0.05 |
q690D high strength low alloy steel sheet mechanical property
| Q690 Yield Strength (≥N/mm2); Thickness or Dia. d (mm) | ||||||
| Standard | Steel Grade | Quality | d≤16 | 16 | 40 | 63 |
| GB/T 1591 – 2008 | Q690 | C, D, E | 690 | 670 | 660 | 640 |
| GB/T 1591 – 2018 | Q690M | C, D, E | 690 | 680 | 670 | 650 |
| Q690 Tensile Strength (N/mm2); d (mm) | Elongation | |||||
| Standard | Steel Grade | Quality | d≤40 | 40 | 63 | % |
| GB/T 1591 – 2008 | Q690 | C, D, E | 770-940 | 750-920 | 730-900 | ≥14 |
| GB/T 1591 – 2018 | Q690M | C, D, E | 770-940 | 750-920 | 730-900 | ≥14 |
Q690D low alloy steel sheet Products Details
Q690D hsla structural steel plate itself not only has a very high strength and also has a certain flexibility, abrasion resistance, fatigue resistance, impact resistance, easy processing and abrasion resistance, often in the manufacturing industry is used quite a lot to meet the needs of many manufacturing industries in the selection of materials.
Q690D low alloy steel plates executive standards: the implementation of GB/T1591-2008, GB/T16270-2009 standards.
Q690D low alloy structural steel plate has high yield strength and tensile strength, is widely used in coal mining machinery, engineering machinery. Such as hydraulic supports, harbor cranes, flatbed trucks and so on.
Q690 high strength steel plate Products image
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We have enough Hot Rolled Q690 HSLA Steel Plate in stock, and we can also customize it according to your needs.
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