Contact us

  • Add: Yanta Road Yanshan County of Hebei Province,061300
  • Tel: 0317-6289718/86-22-87709736 /26679690
  • 15531712002
  • Fax: 86-0317-628971/86-22-87709736
  • PC: 061300
  • E-Mail: hbblq@alloypipe.cn

Alloy seamless steel pipes

Seamless steel tube is a strip steel material with hollow section and no seam around.
Steel tube with hollow section, is widely used as the pipes for fluid conveying, e.g.: the running pipes for oil, nature gas, coal gas, water and some solid material etc. We can porduce alloy steel tubes, stainless steel pipes, carbon steel pipes.

 

Size and weight deviation

Allowable deviation of pipe diameter (inch(mm)

ACC.TOASTM A450

 

Diameter  (mm)

Allowable deviationinmm

hot finished steel seamless pipes

4 101.6

4-7.5101.6-190.5

7.5-9190.5-228.6

1/64(0.4)

1/64(0.4)

1/64(0.4)

1/320.8

3/641.2

1/611.

cold finished steel seamless pipelines

125.4

1-1.525.4-38.1

1.5-2.550.8-63.5

2-2.550.8-63.5

2.5-363.5-76.2

3-476.2-101.6

4-7.5101.6-190.5

7.5(>228.6

0.0040.1

0.0060.15

0.0080.2

0.1010.25

0.0120.3

0.01500.38

0.01500.38

0.01500.38

 

0.0040.1

0.0060.15

0.0080.2

0.1010.25

0.0120.3

0.01500.38

0.0250.64

0.0451.14

 

    Allowable deviation of  pipe wall thicknessACC.TOASTM A450

diameter

In.(mm)

Allowable  thickness deviation%

0.0952.4

0.095-0.1502.4-3.8

0.150-0.180

3.8-4.6

0.1804.6

+

+

+

+

hot finished steel seamless pipes

4101.6

4101.6

40

0

35

35

0

0

33

33

0

0

28

28

0

0

cold finished steel seamless pipelines

1.538.1

1.538.1

 

 

20

22

0

0

 

 

    Allowable deviation of pipe weight per inchACC.TOASTM A450

Processing art

Allowable deviation per inch

 

+

_

 Finished steel

16

0

Outside Diameter≤1.538.1mm

Outside Diameter1.538.1mm

12

13

0

0

Product Name:
Alloy tubes
Model:
Alloy tubes
Description:
Product Name:
carbon steel pipe
Model:

Description:
Product Name:
Stainless steel pipe
Model:

Description:
Product Name:
Alloy Steel Pipes
Model:
ASTM A213-83 T12
Description:
Product Name:
Alloy Steel Pipes
Model:
ASTM A335 P22
Description:
Product Name:
Carbon Steel Pipes
Model:
DIN 17175-79 15Mo3
Description: