China Shandong Baote metal products Co., Ltd. specializes in producing steel pipe diameter: 6mm-1200mm!

Perennial sales: all kinds of seamless steel pipe, precision steel pipe, bright steel pipe, medium and thick wall steel pipe, cold drawn steel pipe, alloy steel pipe, medium and high pressure steel pipe, special equipment pipe, marine steel pipe, gas cylinder pipe, geological drilling pipe, oil casing, hydraulic support pipe, fluid pipe, stainless steel pipe, welded pipe, square pipe, etc.

5140 nitriding treatment: 5140 belongs to nitriding steel, which contains elements conducive to nitriding. After nitriding treatment, 5140 can obtain higher surface hardness. After quenching and tempering, the nitriding treatment hardness of 5140 can reach hra72 ~ 78, i.e. hrc43 ~ 55. Process route of nitrided workpiece: forging annealing rough machining quenching and tempering finish machining stress relief rough grinding nitriding finish grinding or grinding. 

Because the nitrided layer is thin and brittle, it is required to have a high-strength core structure, so it is necessary to carry out quenching and tempering heat treatment first to obtain tempered sorbite and improve the mechanical properties of the core and the quality of the nitrided layer. Soft nitriding is active nitriding, and gas nitriding is commonly used

Various types of steel pipes and non standard steel pipes can be created by suppliers

5140 steel pipe is used to manufacture mechanical parts with medium load and medium speed after quenching and tempering, such as steering knuckle, rear half shaft of automobile and gear, shaft, worm and spline shaft on machine tool; After quenching and medium temperature tempering, it is used to manufacture parts bearing high load, impact and medium speed, such as gear, main shaft, oil pump rotor, sliding block, collar, etc; 

After quenching and low-temperature tempering, it is used to manufacture parts that bear heavy load, low impact and have a solid thickness of less than 25mm on the section, such as worm, spindle, shaft, collar, etc; After quenching and tempering and high-frequency surface quenching, it is used to manufacture parts with high surface hardness without great impact, such as gear, sleeve, shaft, main shaft, crankshaft, spindle, pin, connecting rod, screw, nut, inlet valve, etc. In addition, this steel is also suitable for manufacturing various transmission parts treated by carbonitriding, such as gears and shafts with large diameter and good low temperature toughness.

The company was founded in 2003. It abides by the contract and reputation. While continuously improving the competitiveness of customers through service, it has also won market praise for ourselves.