What is the difference between the raw materials used by 20# Socket Welding FLanges? 20 steel: the average carbon content is 0.17-0.23%, the average silicon content is 0.15-0.40%, the average manganese content is 0.6-1.00%, the average sulfur content is ≤ 0.010%, the average phosphorus content is ≤ 0.025%, and the properties of 20# Socket Welding FLanges are described as follows: Material: this steel is a high-quality low carbon steel, cold extrusion and deep discussion hardening steel. 20# Socket Welding FLanges have low strength, good toughness, plasticity and weldability. The tensile strength of 20# Socket Welding FLanges is 253-500mpa, and the elongation is ≥ 24%. Normalizing can promote the spheroidization of the 20# Socket Welding FLanges, refine the massive proeutectoid ferrite, and improve the cutting performance of blanks smaller than 160hbs.
The steel belongs to high-quality low-carbon steel, cold extrusion, carburizing and hardening steel. The steel has low strength, good toughness, plasticity and weldability. The tensile strength is 253-500mpa, and the elongation is ≥ 24%. 20 # socket welding flges contains no other alloy elements (except residual elements) except carbon (c) element and silicon (SI) manganese (MN) alloy element containing a certain amount for deoxidation.
In addition, I would like to add a knowledge about 20# Socket Welding FLanges: generally, the carbon content less than 0.02% is called wrought iron, the carbon content greater than 2.11% to 4.3% is called pig iron, and the middle is steel.
Raw material usage of 20# Socket Welding FLanges:
It is suitable for manufacturing small and medium-sized carburizing, carbonitriding and other parts that are not very important in automobile, tractor and general machinery manufacturing industry, such as hand brake shoes, lever shafts, gearbox speed forks, transmission driven gears, camshaft on tractors, suspension equalizer shafts, inner and outer bushings of equalizers, etc; In hot rolling or normalizing state, it is used to manufacture various mechanical parts with low stress and high toughness.
In heavy and medium-sized machinery manufacturing, such as forged or pressed pull rods, shackles, levers, sleeves, clamps, etc. In the steam turbine and boiler manufacturing industry, it is mostly used for pipes, flanges, headers and various fasteners working in non corrosive media with pressure ≤ 6N / m2 and temperature ≤ 450 ℃; It is used for manufacturing crosshead, piston and other castings on railway and rolling stock.
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