Advantage

Compared with ordinary strength steel, high-strength steel has higher yield strength and tensile strength. Therefore, using high-strength steel components instead of ordinary strength steel components can reduce cross-sectional size, save steel consumption, and reduce manufacturing, transportation, and installation costs. The application of high-strength steel not only reflects higher structural efficiency, but also brings considerable economic and social benefits.
There are many advantages of high-strength steel, and research results show that under the same axial compression conditions, steel columns made of high-strength steel have ultimate stress in terms of overall stability δ The ratio of u to yield strength fy δ U/fy (i.e. overall stability coefficient) φ）， It is much higher than ordinary strength steel columns. Compared to ordinary steel, the use of high-strength steel in steel structures has the following advantages: it can reduce component size and structural weight, correspondingly reduce welding workload and welding material usage, reduce the use of various coatings (such as rust prevention and fire prevention), make transportation and installation easier, and reduce the processing, manufacturing, transportation, and installation costs of steel structures. High strength steel can reduce the amount of steel used, thereby greatly reducing the consumption of iron ore resources; The reduction of the amount of welding materials and various coatings (rust prevention, fire prevention, etc.) can also greatly reduce the consumption of non Renewable resource and reduce the damage to the environment caused by resource exploitation.

Product Details

Q420 Steel Introduction
Q420 steel is a Chinese steel grade of Low Alloy High Strength Structural Steel, Yield Strength is 420 MPa, parameters are tested with 16mm diameter steel bars or steel plates, and tensile strength is 520-680 Mpa, the material density is 7.85 g/cm3. According to GB/T 1591-2008, Q420 has 5 quality levels: Q420A, Q420B, Q420C, Q420D and Q420E. For Q420 steel equivalent, chemical composition and mechanical properties, please see the tables below content.
Features and Uses
Q420 steel has high strength, especially in normalized or normalized plus tempered state, with high comprehensive mechanical properties, can be used in large ships, bridges, power station equipment, medium and high pressure boilers, high pressure vessels, lifting machinery, mining machinery and other large welded structural parts.

Product Parameters