Seamless Steel Tubes/Pipes Manufacturer
Seamless steel pipe/tube is a steel pipe made by piercing a whole round steel without any weld on the surface, which is called a seamless steel pipe. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold drawn seamless steel pipes, extruded seamless steel pipes, top pipes, etc. According to the cross-sectional shape, seamless steel pipes are divided into two types: circular and irregular. Irregular pipes include square, elliptical, triangular, hexagonal, melon seed shaped, star shaped, and winged pipes with various complex shapes. The maximum diameter is 900mm and the minimum diameter is 4mm. Depending on the application, there are thick walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used as drilling pipes for petroleum geology, cracking pipes for petrochemicals, boiler pipes, bearing pipes, as well as high-precision structural steel pipes for automobiles, tractors, and aviation.
We also supply other types of industrial steel pipes to meet diverse project requirements, including anti-corrosion coating steel pipe and hot dipped galvanized steel pipe. Both pipes are manufactured in strict accordance with international standards and widely applied in water supply, construction and oil & gas transmission projects.
Details
1.Materials: 20#, Q345B, GR.B, X42, X56, P11, P22, ST37, ST45.8, ST52, S235JR, S355JR, GR.6, STP430 etc .
2. Standard: GB/T8162, GB/T8163, API 5L, A106, A53, A335, A333, DIN1629, DIN2448, NF A49, GOST8731, JIS, G3454 etc.
3. Specification:
Outer diameter: 1/4″- 40″ (13.7mm-1016mm).
Wall thickness: 1.5mm-80mm.
Length: 2m- 12m.
4. End: plain end, beveled end, thread, coupling, plastic cap in the both end, pipe clamp.
5. Surface: oiled, black painted or varnish, galvanized, 3PE, FBE, or other epoxy coating.
6. Process: hot-rolled, cold drawn, thermal expansion.
7. Inspection: hydrostatic testing, ultrasonic testing, eddy current testing, magnetic particle testing, impact testing, hardness testing, etc.
8.Application: petroleum, chemical, electric power, water, construction, pipelines, etc
Technical Table
| Item | Specification |
|---|---|
| Product Name | Seamless Steel Pipe / Seamless Steel Tube |
| Material | 20#, Q345B, GR.B, X42, X56, P11, P22, ST37, ST45.8, ST52, S235JR, S355JR, GR.6, STP430 etc. |
| Standards | GB/T8162, GB/T8163, API 5L, A106, A53, A335, A333, DIN1629, DIN2448, NF A49, GOST8731, JIS, G3454 etc. |
| Outer Diameter | 4mm ~ 900mm |
| Wall Thickness | Thin wall & Thick wall available |
| Production Type | Hot rolled, Cold rolled, Cold drawn, Extruded |
| Section Shape | Circular, Square, Elliptical, Triangular, Hexagonal, Special irregular shapes |
| Application | Petroleum geology drilling pipe, petrochemical cracking pipe, boiler pipe, bearing pipe, high-precision structural pipe for automobile, tractor, aviation |
A: Seamless steel pipe has wide applications in petroleum geology drilling, petrochemical cracking, boiler systems, bearing structures, automobiles, tractors and aviation. If you need corrosion-resistant piping solutions, you can check our seamless steel pipe for more specifications.
A: Our seamless steel tube outer diameter ranges from 4mm up to 900mm. Both thin wall and thick wall types are available, and we can also provide special irregular cross-section shapes.
A: We manufacture seamless steel pipes conforming to GB/T8162, GB/T8163, API 5L, ASTM A106, A53, A335, A333, DIN1629, DIN2448, JIS and other international standards.
A: Available grades include 20#, Q345B, GR.B, X42, X56, P11, P22, ST37, ST45.8, ST52, S235JR, S355JR, GR.6, STP430 and more.
