Alloy structural steels are series of steel grades with special chemical compositions and/or mechanical properties which is mainly used in bridges, offshore structures, ships, vehicles, and steel structures. The alloy structural steel GB 3077-88 is a kind of hot rolled and forging alloy steel for mechanical use. It has a good combination of chemical compositions, mechanical properties, and metallurgical components.
The alloy structural steel GB 3077-88 is mainly composed of alloy steel and alloy structural steel. The most important alloying elements in the alloy structural steels are: carbon, silicon, manganese, chromium, molybdenum, vanadium, and so on .The main components of GB 3077-88 are: C, Si, Mn, Cr, Mo, V, and the major shape could be round and flat. The mechanical properties of GB 3077-88 are:
The yield strength of the alloy structural steels GB 3077-88 is 420-480MPa and its ultimate tensile strength is 540-650MPa. The alloy structural steels GB 3077-88 have high fatigue strength, good impact toughness, and high corrosion resistance, making it suitable for applications like shipbuilding, bridge construction, vehicle manufacturing, and pressure vessels.
The welding performance of alloy structural steels GB 3077-88 is excellent. It can be welded with all standard welding processes like gas welding, arc welding, and spot welding. This steel is easy to form and fabricate, and it has a good welding performance. It has good machinability and is easy to carve and trim. It has excellent mechanical properties at all temperatures.
The alloy structural steels GB 3077-88 is widely used in the manufacture of automotive, construction, pressure vessels, offshore, and shipbuilding industries due to its excellent mechanical properties, good formability, and weldability. It is also very cost-effective compared to other materials of similar quality.
The alloy structural steels GB 3077-88 is also resistant to stress corrosion cracking at elevated temperatures. Its good wear resistance and impact strength make it suitable for heavier duty applications. Its strength and good formability makes it ideal for construction and manufacturing applications, such as bridges, vehicle parts and components, pressure vessels, etc.
To sum up, the alloy structural steels GB 3077-88 is an excellent choice for various applications and industries due to its corrosion resistance, good formability, weldability and mechanical properties. It can be easily machined and forms, and it is more cost-effective than other materials of similar quality. It has a good combination of mechanical and chemical components which makes it suitable for many different kinds of applications.
