40Cr alloy steel tube spot sale

40Cr is the standard steel number of GB in China, 40Cr steel is one of the most widely used steel in the machinery manufacturing industry. It has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity after tempering. Steel hardenability is good, water quenching can be quenched to 28 ~ 60mm, oil quenching can be quenched to 15 ~ 40mm. In addition to tempering treatment, this steel is also suitable for cyaniding and high-frequency quenching treatment. When the hardness is 174 ~ 229HB, the relative machinability is 60%.

334281340 766536798364275 4867638594991841218 N

The 40Cr alloy seamless steel pipe produced and sold by Shandong Fengbao Metal Products Co., Ltd. is affordable, easy to process, and can obtain certain toughness, plasticity and wear resistance after proper heat treatment. When tempered at 550~570℃, the steel has the best comprehensive mechanical properties. The hardenability of the steel is higher than that of C45 steel, which is suitable for high-frequency quenching, flame quenching and other surface hardening treatment.

Our company can produce and sell products also include full-size seamless boiler tube, Cold Drawn Seamless Pipe, galvanized square pipe, cold-rolled seamless steel pipe, etc., and we also provide many services such as cutting, spraying, sizing, packaging, and strive to provide customers with one-stop procurement services.
In terms of use, this steel is used to manufacture mechanical parts that bear medium load and medium speed work after tempering, such as steering knuckle, rear shaft of automobile and gear, shaft, worm, spline shaft, center sleeve and so on.

334517423 3501563183414661 2695582966057899206 N

After quenching and medium temperature tempering, it is used to manufacture parts that withstand high load, impact and medium speed work, such as gears, spindles, oil pump rotors, sliders, sleeve rings, etc.
After quenching and low temperature tempering, it is used to manufacture parts with heavy load, low impact and wear resistance, and the solid thickness of the section is less than 25mm, such as worm, spindle, shaft, sleeve ring, etc.

After tempering and high-frequency surface quenching, it is used to manufacture parts with high surface hardness and wear resistance without great impact, such as gear, sleeve, shaft, spindle, crankshaft, mandrel, dowel, connecting rod, screw, nut, intake valve, etc.