EN10297 34CrMo4 steel pipe is an alloy steel produced according to ISO 683-2 and EN 10083-3 standards. It is mainly used for quenching and tempering treatment, with high strength, high toughness, high heat resistance and fatigue resistance, so it is an excellent structural steel.

Regarding the characteristics of 34CrMo4 steel pipe, there are mainly the following points:

 

High strength: The chromium element in steel can improve its tensile strength, and the addition of molybdenum element can improve its fatigue resistance.

 

High heat resistance: This steel can work at high temperatures, and its material properties will not decrease with the increase of temperature, so it can withstand the use requirements of high temperature environments.

 

Good fatigue resistance: Due to the addition of molybdenum, 34CrMo4 steel pipe steel has good fatigue resistance and can maintain stable performance under extreme working conditions.

 

Good workability and weldability: it can not only be processed into various shapes, but also be processed by heat treatment, quenching, annealing and other processes. In terms of welding, although certain alloying elements may affect its weldability, a variety of welding methods such as fusion welding and arc welding can be carried out without too fast cooling and hardening.

 

34CrMo4 steel pipe mainly includes carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr), nickel (Ni) and molybdenum (Mo) and other elements. The specific content ranges are as follows:

 

Carbon (C) : 0.30 ~ 0.37%

 

Silicon (Si) : 0.10 ~ 0.40%

 

Manganese (Mn) : 0.60 ~ 0.90%

 

Phosphorus (P) and sulfur (S) : As residual elements, their content should be less than or equal to 0.035%, respectively

 

Chromium (Cr) : 0.90 ~ 1.20%

 

Nickel (Ni) and copper (Cu) : Also as residual elements, their content should be less than or equal to 0.030%

 

Molybdenum (Mo) : 0.15 ~ 0.30%

 

34CrMo4 steel pipe is widely used in machinery industry, oil exploitation, chemical industry, automotive and aviation and other fields.

 

In the machinery industry, 34CrMo4 steel pipe is often used to manufacture a variety of high-strength and heat-resistant structural materials because of its excellent mechanical properties. In the field of oil exploitation and chemical industry, due to its good heat resistance and corrosion resistance, 34CrMo4 steel pipes are often used in the manufacture of pipes, valves and other equipment to cope with high temperature and high pressure working environments.

 

In the automotive and aerospace sectors, 34CrMo4 steel pipe's high strength, toughness and fatigue resistance make it an ideal material for the manufacture of critical components. For example, it can be used to make components such as automotive crankshafts, engine components, and aircraft engines, which need to withstand enormous pressure and vibration during operation.

 

In addition, 34CrMo4 steel pipes are also widely used in the manufacture of heat exchangers, pressure vessels, gears, rear axle and other components, which have high requirements for the strength and heat resistance of the material.