What is alloy steel seamless steel tube?

- Oct 18, 2019-

         Seamless Steel Tube is a long strip of Steel with a hollow section and no seams around it.Steel pipe has a hollow section, a large number of pipe used for conveying fluid, such as oil, natural gas, gas, water and some solid materials pipeline.Seamless alloy steel tube and round steel, such as solid steel, in the bending and torsion strength at the same time, the weight is lighter, is an economic section of steel, widely used in the manufacture of structural parts and mechanical parts, such as oil transport, stair handrail, bicycle frame and construction use of steel scaffolding.Using seamless alloy steel tube to make ring parts can improve the material utilization rate, simplify the manufacturing process, save material and processing time, such as rolling bearing ring, jack sleeve, etc.Alloy seamless steel tube or a variety of conventional weapons indispensable material, gun barrel, barrel, and so on to be made of steel tube.In addition, the circular section under internal or external radial pressure, stress is more uniform, so most of the seamless alloy steel tube is a circular tube.


       Medium carbon tempered steel, cold heading die steel.40Cr moderate price, easy to process, after the appropriate heat treatment can obtain a certain degree of toughness, plasticity and wear resistance.Normalizing can promote microstructure refinement and near equilibrium, and improve the cutting performance of the blank.Tempering at 550~570℃, 40Cr has the best comprehensive mechanical properties.The hardenability of 40Cr is higher than 45 steel, suitable for high-frequency quenching, flame quenching and other surface hardening treatment.

seamless alloy steel tube


        After the quench and quality for manufacturing to withstand medium load and medium speed work of mechanical parts, such as automobile steering knuckle, rear axle and machine tool gear, shaft, worm, spline shaft, center sleeve.After quenching and tempering at medium temperature, 40Cr is used to manufacture parts that can withstand high load, impact and medium speed work, such as gears, sleeves, shafts, spindles, crankshafts, mandels, pins, connecting rods, screws, nuts, intake valves and so on.

        In addition, the seamless alloy steel tube is also suitable for manufacturing a variety of transmission parts for carbonitriding treatment, such as large diameter and low temperature toughness of the gear and shaft.

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