Compared with ordinary weathering steel, what are the advantages of Q355GNH?
Q355GNH steel is a high strength weather resistant steel. Compared with ordinary weather-resistant steel, it has the following advantages:
1. Higher strength and fatigue resistance
The strength of Q355GNH steel is higher than ordinary weathering steel, which can reach 355MPa. In addition, it has better fatigue resistance, so it is more durable under stress.
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2. Better corrosion resistance
Alloying elements such as copper, phosphorus, chromium and nickel are added to Q355GNH steel, which can improve the corrosion resistance of steel. In addition, it also has good atmospheric corrosion resistance, and can even be used in harsh environments such as the ocean, which makes it widely used in petrochemical, shipbuilding and other industries.
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3. Better process-ability and weld-ability
Q355GNH steel has excellent processing performance and can be processed flexibly, such as bending, stamping, shearing, etc. At the same time, it can also be connected by common welding methods. The welded joints have excellent performance and will not affect the mechanical properties of the material.
4. Longer service life
Compared with ordinary weathering steel, Q355GNH steel has a longer service life. Due to its precision alloying treatment, it can effectively extend the life of the material and reduce the cost of replacement and maintenance.
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In general, Q355GNH steel is an ideal weathering steel material with higher strength, better corrosion resistance, better process-ability and weld-ability, and longer service life, so it is widely used In petrochemical, shipbuilding, bridge, construction and metallurgy and other fields.
Post time: Mar-18-2023
