seamless steel pipe
Seamless steel pipe is a kind of steel strip product with hollow section and no seams.
Features:
★ It’s economy and practicability increases with the wall thickness, on the contrary, smaller wall thickness, the processing cost increases substantially;
★ The product technology decided its narrow application fields, seamless pipes are with low machinery precision.
★ Checking and molding has to be done in processed offline. In general, it has shown the superiority in construction steel applications which requires high pressure, high strength, etc.
Classifications of Seamless Steel Pipes:
 |
Material |
Standards |
Specification |
|
12Cr1MoVG |
GB5310-1995 |
∮8-1240*1-200 |
|
12CrMoG |
GB6479-2000 |
|
15CrMoG |
GB9948-2006 |
|
12Cr2Mo<A335P22> |
DIN17175-79 |
|
Cr5Mo<A335P5> |
ASTM SA335 |
|
Cr9Mo<A335P9> |
ASTM SA213 |
|
10Cr9Mo1VNb<A335P91> |
JISG3467-88 |
|
15NiCuMoNb5<WB36> |
JISG3458-88 |
|
Alloy Steel Pipe |
12Cr2MoWVTiB |
|
Applications: It is applied for the petroleum, chemical industry, electric power boiler line with high temperature resistance, low temperature resistance and corrosion resistance. |
 |
Material |
Standards |
Specificaion |
|
16MnDG、10MnDG、09DG |
GB/T18984-2003 |
∮8-1240*1-200 |
|
09Mn2VDG、06Ni3MoDG |
ASTM A333 |
|
ASTM A333Grade1 |
|
|
ASTM A333Grade3 |
|
|
ASTM A333Grade4 |
|
|
ASTM A333Grade6 |
|
|
ASTM A333Grade7 |
|
|
ASTM A333Grade8 |
|
|
ASTM A333Grade9 |
|
|
ASTM A333Grade10 |
|
|
Low Temperature Steel Pipe |
ASTM A333Grade11 |
|
Applications: Low temperature seamless steel pipe is used in the level - 45 ℃ ~ 195 ℃ low temperature pressure vessel pipe and low temperature heat exchanger pipes. |
 |
Material |
Standards |
Specification |
|
20G |
GB5310-1995 |
∮8-1240*1-200 |
|
ASTM SA106B/C |
ASTM SA106 |
|
ASTM SA210A/C |
ASTM SA210 |
|
High-pressure Boiler Tube |
ST45.8-III |
DIN17175-79 |
|
Applications: High-pressure boiler seamless tube is suitable for manufacturing high pressure boiler tube, header and steam pipes etc. |
 |
Material |
Standards |
Specification |
|
10 |
GB6479-2000 |
∮8-1240*1-200 |
|
20 |
|
High Pressure Fertilizer Pipes |
16Mn |
|
Application: It is applicable to the working temperature(- 40-400 ℃) and working pressure9(10-32 mpa) of chemical equipment and pipeline. |
 |
Material |
Standard |
Specification |
|
10 |
GB9948-2006 |
∮8-630*1-60 |
|
Petroleum Cracking Pipes |
20 |
|
Application: It is used in the furnace tube, heat exchanger pipes and piping of oil refinery factory. |
 |
Material |
Standard |
Specification |
|
10# |
GB3087-2008 |
∮8-1240*1-200 |
|
20# |
|
Low-medium Pressure Boiler Pipe |
16Mn<Q345A.B.C.D.E> |
|
Application: It is proper to manufacture various structural low or medium pressure boiler and locomotive boiler. |
 |
Material |
Standard |
Specification |
|
10#、20# |
GB/T8163-2008 |
∮8-1240*1-200 |
|
ASTM A106A,B,C、A53A,B |
ASTM A106 |
|
Fluid Pipelines |
16Mn<Q345A.B.C.D.E> |
ASTM A53 |
|
Application: It is suitable for transport the fluid like oil, water and natural gas etc. |
 |
Material |
Standard |
Specification |
|
10#、20#、45#、27SiMn |
GB/T8162-2008 |
∮8-1240*1-200 |
|
ASTM A53A,B |
GB/T17396-1998 |
|
General Structural Pipe |
16Mn<Q345A,B,C,D,E> |
ASTM A53 |
|
Application: it is applied to general structure such as engineering support and mechanical processing etc. |
 |
Material |
Standard |
Specification |
|
J55、K55、N80、L80 |
API SPEC 5CT |
∮60.23-508.00 |
|
Petroleum Casing Pipe |
C90、C95、P110 |
ISO11960 |
*4.24-16.13 |
 |
Material |
Standard |
Specification |
|
A、B、X42、X46、X52、X56、X60、X65、X70、X80 |
API SPEC 5CT |
∮32-1240*3-100 |
|
Line Pipe |
L245、L290、L360、L415、L450 |
GB/T9711.1 |
|
GB/T9711.2 |
|
Application: Line pipe is widely used in the oil and natural gas industry like oxygen, water and oil transportation pipeline. |
 |
Material |
Standard |
Specification |
|
Spiral Steel Pipe |
Q235A-B、Q345A-E |
SY/T5037-2000 |
219-2820*4-20 |
|
Application: It is suitable for low pressure fulid transporation. |
