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Q620D Q690 Material H Beam
Q620D Q690 Steel Beam H
Q620D h shape metal brand in the Q = yield; Q620D h beam section brand in the 620 = yield strength, the unit 620Mpa that the steel plate can withstand 620MPa within the yield pressure value; Q620D H-section steel beam brand in the D = steel plate level D = -20 ° C. Q620D is a low alloy high strength structural steel plate, often used in machinery manufacturing applications such as heavy machinery, engineering machinery, chemical machinery, nuclear power equipment, bridge equipment, port machinery, crane equipment, ship equipment, mining equipment.
Q620D is a low alloy high-strength structural steel, often used in the machinery manufacturing industry, such as: heavy machinery, engineering machinery, chemical machinery, nuclear power equipment, bridge equipment, harbor machinery, crane equipment, ship equipment, mining machinery and equipment.
Q690 h steel profile is a kind of low alloy high-strength structural steel, composed of Q+number+quality grade symbol+deoxygenation method symbol.Q690 in "Q", on behalf of the yield point of the steel, "690" represents the yield point in MPa. For example, Q690D indicates that the yield stress (σs) is 690 MPa, and the grade is structural steel of grade D. The common grades of Q690 are D and E.
Q690 structural steel beam Mechanical properties
Yield strength: ≥690Mp; tensile strength: 770-9400Mpa; elongation: ≥14.
Q690D steel beam is widely used in mining and all kinds of engineering construction equipment, such as drilling rigs, electric shovels, electric wheel dump trucks, excavators, loaders, bulldozers, soil pump trucks, fire ladders, all kinds of cranes and coal mine hydraulic support.
China h beam section Distributors--GNEE Group
Q620D Q690 Steel Beam
Q620D Q690 h shape metal chemical composition:
| Grade |
C |
Si |
Mn |
P |
S |
Ni | Cr | Mo | Cu | Nb | V | B | Ti |
| Q620D | ≤0.20 | ≤0.80 | ≤1.70 | ≤0.025 | ≤0.015 | ≤2.00 | ≤1.50 | ≤0.70 | 0.50 | ≤0.06 | ≤0.12 | ≤0.005 | ≤0.65 |
| Q690 | ≤0.18 | ≤0.6 | ≤2.0 | ≤0.030 | ≤0.025 | - | - | - | - | - | - | - | - |
China h type steel beam Distributors--GNEE Group
GNEE Group Receives Visiting Customers
GNEE Steel has been engaged in the steel field for 16 years. Our wide range of products, strict testing standards and excellent product quality have earned us a good reputation both at home and abroad. Our products have been successfully exported to many countries. Our company has been developing and expanding since its establishment, and up to now, we have established long-term win-win cooperation relationships with many well-known large-scale steel companies.
China H shaped steel Distributors--GNEE Group
We have on-line heavy duty H beam steel products, welcome to visit our company, if you have more needs and questions about other steel products, please feel free to contact us!