Product

Carbon and alloy seamless steel pipe

Spec Description

Chinese

English

Outside Diameter

Wall  Thickness 

Outside Diameter

Wall  Thickness

10 to 800mm

1mm to 120

1/2''  to 20'

SCH40  to  XXS

Material and Standard

Item

American  Standard

German  Standard

(1)

A53-A

St37

DIN1626

A106-A

St37-2

DIN17175

A179-C

St35.8

DIN17175

(2)

ASTM  A106-B

St45-8

DIN17175

ASTM  A53-B

St42-2

DIN1626

ASTM  178-C

St45-4

DIN1629

(3)

ASTM A1045

CK45

(4)

A210-C

St52.4

DIN1629

St52

DIN1629

Note

(1)

Bundle or Bunk ,according to customer’s requirement

(2)

T/T  and   L/C

(3)

Structure , transport gas and oil , making machine part  and so on

NPS

1/8″ to 1 1/2″

Over 1 1/2″ to 4″

Over 4″ to 8″

Over 8″ to 18″

Over 18″ to 26″

Over 26″ to 34″

Over 34″ to 48″

OD Tolerance

+/- 0.4

+/- 0.8

+1.6, -0.8

+2.4, -0.8

+3.2, -0.8

+4.0, -0.8

+4.8, -0.8

WT Tolerance

+/- 12.5%

Weight Tolerance

+10%, -3.5%