20# seamless steel pipe for low carbon steel pipe, carbon steel is generally divided into three kinds of low carbon steel, medium carbon steel and high carbon steel, of which 45# steel is medium carbon steel, lower than 45# that is low carbon steel, higher than 45# is high carbon steel, seamless steel pipe, such as no special requirements, generally use 20# seamless steel pipe.
20# seamless steel tube material is 20# steel, its strength is slightly higher than 15#, rarely quenched, without temper brittleness. Cold deformation high plasticity, general bending, rolling, bending and hammer arch processing.
20# seamless steel pipe
20# seamless steel pipe
The performance of arc welding and contact welding is good, the thickness of gas welding is small, the shape is strict or the parts with complex shape are easy to crack. The machinability of cold drawing or normalizing is better than that of annealing. It is generally used to produce workpieces with little stress and high toughness.
20# seamless steel pipe material is: high quality carbon structural steel
Brand: 20#
Standard: GB8162-2008 GB/T8163-2008 GB3087-2008
Heat treatment specification: normalizing, 910 centigrade, air cooling. Metallographic organization: ferrite and pearlite.
Delivery status: delivery without heat treatment or heat treatment (annealing, normalizing or high temperature tempering). Requirements for heat treatment delivery shall be specified in the contract, and those not specified shall be delivered without heat treatment.
Hot rolling (extruded seamless steel pipe): round tube billet, heating, perforation, three roll skew rolling, continuous rolling or extrusion, depipe, sizing (or reducing diameter), cooling, tube straightening, quality inspection wall thickness, water pressure test (or flaw detection), marking, and warehousing.
Cold drawn (rolling) seamless steel pipe: round tube billet, heating, perforation, head, annealing, acid washing, oil (copper plating), multi pass cold drawing (Leng Zha), tube of billet, heat treatment, straightening, quality inspection wall thickness, water pressure test (flaw detection), mark and warehousing. Shandong East fly metal materials Co., Ltd. mainly produces seamless pipe brand: 10#, 20#, 35#, 45#, 16Mn 20G, etc.
Sales one: 152887411910635-8882410
Two sales: 151665462250635-8882401
Fax: 0635-8882401
Company website: http://www.sddfjs.com