Alloy structural steel 30CrMnSi

30CrMnSi alloy structural steel is a kind of medium carbon alloy structural steel exhibiting high strength and good toughness. Its quenching and tempering steel. Its quenching temperature is 950℃ and tempering temperature is 620℃. The main components are 0.27-0.33% carbon, 0.35-0.60% silicon, 1.50-2.00% manganese, 0.50-0.80% chromium, and 0.10-0.25% molybdenum.

30CrMnSi alloy structural steel is a kind of medium hardening steel. It has a slightly higher strength and good toughness due to the higher carbon and manganese content. Its mechanical properties are relatively stable and it is brighter in surface decoration. 30CrMnSi alloy structural steel has good hardenability and balanced crystal structure after quenching and tempering. It has good hardenability, enough toughness and good machinability after quenching and tempering temperature. It is suitable for structural components and machine parts with medium load and medium speed.

30CrMnSi alloy structural steel has good weldability, when hot or cold rolled, the welding joint performance of the welded parts is good. The weld joint has good crack resistance and reliable overall performance. When heated, it has good toughness, plasticity and machinability, and its corresponding performance is also good. It has good oxidation resistance and corrosion resistance, and can be used in higher temperature working environment. The high temperature performance of 30CrMnSi alloy structural steel is also high, which can meet the application requirements of different working environments.

30CrMnSi alloy structural steel has good high temperature performance and strong chemical stability. It has a good combination of strength and toughness after quenching and tempering. It has good technological performance, suitable for manufacturing important parts of mechanical machinery and lightweight mechanical parts, such as turbine spindle, worm wheel, pinion, high iron and steel gearing, shaft, spline shaft and so on. It can also be used in different types of chemical plant, such as ammonia pressure vessels, metallurgical equipment, alternating sleeve, boiler drum, composite vessel, feed water heater and pipe line of superheated steam.

30CrMnSi alloy structural steel is a kind of medium carbon alloy structural steel. Its mechanical properties are relatively stable, good hardenability and good welding performance. It has good oxidation resistance and corrosion resistance, high temperature performance, and overall good performance. It has wide application fields, such as manufacturing important parts of mechanical motor and lightweight mechanical parts, such as turbine spindle, worm wheel, pinion, and high iron and steel gearing. It is also suitable for use in different types of chemical plant, such as ammonia pressure vessels, metallurgical equipment, and boiler drum composite vessel.

30CrMnSi alloy structural steel is a low carbon alloy steel with good plasticity and toughness, good hardenability, and relatively low production cost. It is used for automobile, motorbike, machinery, etc.

The material hardness of 30CrMnSi alloy structural steel is relatively high, and its surface is relatively hard. It can be carburized and hardened to improve the wear resistance of parts. The steel has good exhaust performance and is easy to deform. 30CrMnSi has medium strength, good weldability and excellent machining performance.

30CrMnSi alloy structural steel is mainly used in the manufacture of carburized mechanical parts with wear resistance and strength requirements, and can also be used in the manufacture of high strength bolts, shipped parts, transmission gears, shafts, tools, etc.

30CrMnSi alloy structural steel has good mechanical properties and can be heat treated to a variety of mechanical properties. The steel can be quenched and tempered, or quenched and tempered after quenching and cold working, and can be used for carburizing and nitriding. The nitriding depth of the steel is 40-60μm, the surface hardness is more than 55HRC, and the fatigue strength index is more than 700MPa.

30CrMnSi alloy structural steel has good comprehensive mechanical properties, good decorative finish, good processing performance and good surface finish. The steel has good machinability after carburization, sufficient heat treatment and thermal processing performance, good engineerability, and weldability.

30CrMnSi alloy structural steel is a high-quality low-alloy carburizing steel, which is widely used in the manufacture of parts and components with wear resistance requirements. The demand for this steel is continuously increasing due to its excellent mechanical properties, good pitting corrosion performance and good processability.