SCH 40 Steel Pipe

For the steel we are not unfamiliar, from kitchen to district heating pipe layout, from the ship to the aircraft structure parts of the gliding device, any place and any occasions are full of pipeline figure. So, if you mention SCH 40 steel pipe, the understanding of how many? The following, I will introduce the material to do.

Steel pipe wall thickness representation has pipe schedule number, thickness of steel tube and pipe size weight three kind of method is to pipe schedule number "Sch" said wall thickness. Pipe schedule number is the design pressure and temperature material design allowable stress ratio multiplied by 1000, and by the numerical rounding after. Said inch pipe wall thickness:

Sch.20---- Name: Schedule 20
Sch.10s-- s series is a special stainless steel, carbon steel without.

For example:

2 "sch.10s 2" over the wall thickness is 2.9mm, material for stainless steel;
2 "sch.40 2" over the wall thickness of 4.0mm.
By the way of pipe wall thickness of the said method:
Steel pipe wall thickness representation has pipe schedule number, wall thickness of the pipe size and the weight of three methods
1) It is to schedule number "Sch" said wall thickness.
Pipe schedule number is the design pressure and temperature material design allowable stress ratio multiplied by 1000, and by the numerical rounding after.
That is: Sch = P/[σ]t × 1000
ANSI B36.10 wall thickness grade: Sch10, Sch20, Sch30, Sch40, Sch60, Sch80, Sch100, Sch120, Sch140, Sch160 ten grades;
ANSI B36.19 wall thickness grade: Sch5s, Sch10s, Sch40s, Sch80s four grades;
2) With steel tube wall thickness is represented by China, Japan, ISO part of the steel pipe standard
3) With the weight of pipe wall thickness, it will be divided into three kinds of pipe wall thickness:Firstly. standard weight pipe, expressed in STD.Secondly， thickened tube, expressed in XS.Lastly， super thick pipe, expressed in XXS.