Thick-walled seamless steel pipe production manufacturing process can be divided into cold drawing, cold rolling, hot rolling, thermal expansion of the four basic ways, the steel pipe material is 10 #, 20 #, 35 #, 45 # known as ordinary steel pipe, 16Mn Between the ordinary steel pipe and the alloy steel pipe is called low-alloy steel pipe, the material of the steel pipe is 27SiMn, 12Cr1MoV, 10CrMo910, 15CrMo, 35CrMo and stainless steel pipe are collectively referred to as alloy steel pipe. Divided into structural seamless steel tubes according to the purpose; seamless steel tubes for transportation; seamless steel tubes for boilers; high-pressure seamless steel tubes for boilers; high-pressure seamless steel tubes for fertilizer equipment; seamless steel tubes for geological bricks exploration; Seamless steel pipe; seamless steel pipe for oil cracking; seamless steel pipe for shipbuilding; cold-drawn cold-rolled precision seamless steel pipe; Seamless steel pipe is represented by the method of outer diameter, wall thickness, thick-walled seamless steel pipe is mainly used for mechanical processing, coal, hydraulic steel, and other purposes.
Thick-walled seamless steel pipe classification: hot-rolled thick-walled seamless steel pipe, cold-rolled thick-walled seamless steel pipe, cold-drawn thick-walled seamless steel pipe, extruded thick-walled seamless steel pipe, pipe jacking.
Thickness of seamless steel pipe theoretical weight calculation formula: Weight per meter W = 0.02466 * S (DS) Symbol Meaning: D = outside diameter S = wall thickness thick-walled seamless steel pipe specification table:
Specification Specifications Specification 4*1/6-14*1-3 38*5.5 89*5 133*18 14*3.5 42*3 89*5.5 159*6 14*4 42*3.5 89*6 159*6.5 16* 3 42*4 89*7 159*7 18*2 42*5 89*7.5 159*8 18*3 42*6 89*8 159*9.5 18*4 42*8 89*9 159*10 18*5 45 *3 89*10 159*12 19*2 45*4 89*11 159*14 21*4 45*5 89*12 159*16 22*2.5 45*6 108*4.5 159*18 22*3 45*7 108*5 159*20 22*4 48*4 108*6 159*28 22*5 48*4.5 108*7 168*6 25*2.5 48*5 108*8 168*7 25*3 48*6 108* 9 168*8 25*4 48*7 108*10 168*9.5 25*5 48.3*12.5 108*12 168*10 25*5.5 51*3 108*14 168*11 27*3.5 51*3.5 108*15 168 *12 27*4 51*4 108*16 168*14 27*5 51*5 108*20 168*15 27*5.5 51*6 114*5 168*16 28*2.5 57*4 114*6 168*18 28*3 57*5 114*7 168*20 28*3.5 57*5.5 114*8 168*22 28*4 57*6 114*8.5 168*25 30*2.5 60*4 114*9 168*28 32* 2.5 60*4 114*10 180*10 32*3 60*5 114*11 194*10 32*3.5 60*6 114*12 194*12 32*4 60*7 114*13 194*14 32*4.5 60 *8 114*14 194*16 32*5 60*9 114*16 194*18 34*3 60*10 114*18 194*20 34*4 76*4.5 133*5 194*26 34*4.5 76*5 133*6 219*6.5 34*5 76*6 133*7 219*7 34*6.5 76*7 133*8 219*8 38*3 76*8 133*1 0 219*9 38*3.5 76*9 133*12 219*10 38*4 76*10 133*13 219*12 38*4.5 89*4 133*14 219*13 38*5 89*4.5 133*16 219 *14 Specification Specifications Specification 219*16 273*36 356*28 426*12 219*18 273*40 356*36 426*13 219*20 273*42 377*9 426*14 219*22 273*45 377* 10 426*17 219*24 298.5*36 377*12 426*20 219*25 325*8 377*14 426*22 219*26 325*9 377*15 426*30 219*28 325*10 377*16 426 *36 219*30 325*11 377*18 426*40 219*32 325*12 377*20 ​​426*50 219*35 325*13 377*22 457*9.5 219*38 325*14 377*25 457*14 273*7 325*15 377*32 457*16 273*8 325*16 377*36 457*19 273*9 325*17 377*40 457*24 273*9.5 325*18 377*45 457*65 273* 10 325*20 377*50 508*13 273*11 325*22 406*9.5 508*16 273*12 325*23 406*11 508*20 273*13 325*25 406*13 508*22 273*15 325 *28 406*17 558.8*14 273*16 325*30 406*22 530*13 273*18 325*32 406*32 530*20 273*20 325*36 406*36 570*12.5 273*22 325*40 406*40 610*13 273*25 325*45 406*55 610*18 273*28 356*9.5 406.4*50 610*78 273*30 356*12 406.4*55 624*14.2 273*32 356*15 406* 60 824*16.5 273*35 356*19
Thick-walled seamless steel pipe classification: hot-rolled thick-walled seamless steel pipe, cold-rolled thick-walled seamless steel pipe, cold-drawn thick-walled seamless steel pipe, extruded thick-walled seamless steel pipe, pipe jacking.
Thickness of seamless steel pipe theoretical weight calculation formula: Weight per meter W = 0.02466 * S (DS) Symbol Meaning: D = outside diameter S = wall thickness thick-walled seamless steel pipe specification table:
Specification Specifications Specification 4*1/6-14*1-3 38*5.5 89*5 133*18 14*3.5 42*3 89*5.5 159*6 14*4 42*3.5 89*6 159*6.5 16* 3 42*4 89*7 159*7 18*2 42*5 89*7.5 159*8 18*3 42*6 89*8 159*9.5 18*4 42*8 89*9 159*10 18*5 45 *3 89*10 159*12 19*2 45*4 89*11 159*14 21*4 45*5 89*12 159*16 22*2.5 45*6 108*4.5 159*18 22*3 45*7 108*5 159*20 22*4 48*4 108*6 159*28 22*5 48*4.5 108*7 168*6 25*2.5 48*5 108*8 168*7 25*3 48*6 108* 9 168*8 25*4 48*7 108*10 168*9.5 25*5 48.3*12.5 108*12 168*10 25*5.5 51*3 108*14 168*11 27*3.5 51*3.5 108*15 168 *12 27*4 51*4 108*16 168*14 27*5 51*5 108*20 168*15 27*5.5 51*6 114*5 168*16 28*2.5 57*4 114*6 168*18 28*3 57*5 114*7 168*20 28*3.5 57*5.5 114*8 168*22 28*4 57*6 114*8.5 168*25 30*2.5 60*4 114*9 168*28 32* 2.5 60*4 114*10 180*10 32*3 60*5 114*11 194*10 32*3.5 60*6 114*12 194*12 32*4 60*7 114*13 194*14 32*4.5 60 *8 114*14 194*16 32*5 60*9 114*16 194*18 34*3 60*10 114*18 194*20 34*4 76*4.5 133*5 194*26 34*4.5 76*5 133*6 219*6.5 34*5 76*6 133*7 219*7 34*6.5 76*7 133*8 219*8 38*3 76*8 133*1 0 219*9 38*3.5 76*9 133*12 219*10 38*4 76*10 133*13 219*12 38*4.5 89*4 133*14 219*13 38*5 89*4.5 133*16 219 *14 Specification Specifications Specification 219*16 273*36 356*28 426*12 219*18 273*40 356*36 426*13 219*20 273*42 377*9 426*14 219*22 273*45 377* 10 426*17 219*24 298.5*36 377*12 426*20 219*25 325*8 377*14 426*22 219*26 325*9 377*15 426*30 219*28 325*10 377*16 426 *36 219*30 325*11 377*18 426*40 219*32 325*12 377*20 ​​426*50 219*35 325*13 377*22 457*9.5 219*38 325*14 377*25 457*14 273*7 325*15 377*32 457*16 273*8 325*16 377*36 457*19 273*9 325*17 377*40 457*24 273*9.5 325*18 377*45 457*65 273* 10 325*20 377*50 508*13 273*11 325*22 406*9.5 508*16 273*12 325*23 406*11 508*20 273*13 325*25 406*13 508*22 273*15 325 *28 406*17 558.8*14 273*16 325*30 406*22 530*13 273*18 325*32 406*32 530*20 273*20 325*36 406*36 570*12.5 273*22 325*40 406*40 610*13 273*25 325*45 406*55 610*18 273*28 356*9.5 406.4*50 610*78 273*30 356*12 406.4*55 624*14.2 273*32 356*15 406* 60 824*16.5 273*35 356*19
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