1. S280GD+Z
S280GD+Z is a low-alloy high-strength structural steel, which is often used to manufacture components that need to bear large loads. Its hardness range is usually between HRC30-45, and it has high wear resistance and fatigue resistance. Due to its excellent plasticity and toughness, S280GD+Z also has good processing and welding properties.
2. S350GD+Z
S350GD+Z is a medium-carbon low-alloy high-strength structural steel with a high yield point and strength. Its hardness range is usually between HRC25-40. Compared with S280GD+Z, S350GD+Z has a lower hardness, but also has better plasticity and toughness. The wear resistance and fatigue resistance of S350GD+Z are relatively poor, but its good processability and welding properties make it still widely used in some specific fields.
3. S450GD+Z
S450GD+Z is a high-strength galvanized sheet with high mechanical property requirements, yield strength ≥450MPa, tensile strength ≥480MPa, elongation ≥10%, zinc layer weight ≥350g/m² (double-sided). Compared with S340GD+Z, S450GD+Z has a higher yield strength.
4. Price comparison
Since S280GD+Z, S350GD+Z and S450GD+Z differ in hardness, yield strength, tensile strength, etc., their prices will also be different. Generally speaking, the price of steel is proportional to its performance, and the higher the performance, the higher the price of steel. Therefore, it can be inferred that the price of S450GD+Z will be higher than that of S350GD+Z, and the price of S350GD+Z will be higher than that of S280GD+Z.
5. Conclusion
By analyzing the performance of three types of steel, S280GD+Z, S350GD+Z and S450GD+Z, the following conclusions can be drawn:
S280GD+Z has higher hardness and strength, and is suitable for components that need to bear larger loads.
S350GD+Z has lower hardness, but has good plasticity and toughness, and is suitable for components that bear medium loads.
S450GD+Z has higher yield strength and tensile strength, and is suitable for components that require higher strength and corrosion resistance.
Our products are exported to more than 60 countries and regions including Europe, the Middle East, Southeast Asia, Australia, Latin America, South Africa, etc. We have won the recognition of customers with good reputation and good service. Since its establishment, the company has always adhered to the business philosophy of "making friends while doing business", insisting on being ourselves first and doing good deeds, taking customer satisfaction as the goal, reputation first, and being committed to providing customers with first-class products and meticulous and efficient services.
Company integrating production and trade, with 14 years of experience in high-quality steel production, providing one-stop service for global customers.
The products are widely used in the construction and infrastructure fields, such as bridges, large buildings, highways, tunnels, airports, docks, etc. Steel is an ideal choice for these structures, capable of withstanding heavy weights and strong winds.
