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20# seamless steel pipe

Article author:administrators issuing time:2021/12/21 15:52:47 Reading:118

20# seamless steel pipe

  20 # seamless steel pipe is made of 20 # steel, with slightly higher strength than 15 # and little quenching and no tempering brittleness. Cold deformation has high plasticity. It is generally used for bending, calendering, bending and hammer arch processing. Arc welding and contact welding have good welding performance. During gas welding, cracks are easy to occur on parts with small thickness, strict shape requirements or complex shape. Machinability cold drawing or normalizing state is better than annealing state. It is generally used to manufacture workpieces with little stress and high toughness requirements.


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