Carbon Steel Pipe Wall Thickness Tolerance

Asme ansi b36 10 19 carbon alloy and stainless steel pipes dimensions pipe sizes inside and outside diameters wall thickness schedules moment of inertia transverse area weight of pipe filled with water u s.

Carbon steel pipe wall thickness tolerance.

List of wall thicknesses for carbon steel pipes. Pay attention to this you will get a better pipe. Welded seamless carbon steel pipe to asme b36 10m all dimensions are in mm schedule wall thickness in mm nominal size dn nps 10 20 30 40 std 60 80 xs 100 120 140 160 xxs carbon steel pipe dimensions note 1 for dimensional tolerances refer to asme b36 10m equivalent sizes shown in api specification 5l od mm structural steel hollow sections. Take the seamless steel pipe as an example pipe wall thickness tolerance affect the quality.

Astm a106 seamless pressure pipe also known as asme sa106 pipe covers seamless carbon steel nominal wall pipe for high temperature service. Asme b36 10 includes other pipe thicknesses which are also commercially available with stainless steel material. For pipe over 10 inch as special od tolerance pipe the od shall within vary 1 1. Schedule 10 sch 10 s 10 schedule 20 sch 20 s 20 schedule 30 sch 30 s 30 schedule 40 sch 40 s 40.

As astm a106 and astm a530 standards. Nps 2 and larger shall be hot finished unless otherwise specified. So schedule numbers now identify wall thicknesses of pipe in the different nominal sizes as ansi b36 10m states as a convenient designation system for use in ordering. The wall thickness at any point should be within the following tolerance table.

1 mean diameter is the average of any two diameter measurements taken at right angles to each other at any point along the length. For standard pipe except as provided for thin wall pipe the tolerances of diameter shall be in accordance with the following table. Cost of stainless steel pipe is much higher than carbon steel pipe. 4 minimum weight is controlled by tolerances for outside diameter and wall thickness.

2 maximum wall thickness is controlled by weight tolerance 3 for schedule 5 and 10 only diameter wall thickness and length tolerances apply. To reduces the cost of material asme has introduced different schedule numbers. Due to corrosion resistance properties of stainless steel advancement of high alloy stainless steel and fusion welding less thickness pipe can be work satisfactorily without fear of early failure.