Seamless steel pipe is perforated by the whole round steel pipe, there is no weld on the surface of the steel pipe, called seamless steel pipe. According to the production method, seamless steel pipe can be divided into hot rolled seamless steel pipe, cold rolled seamless steel pipe, cold drawn seamless steel pipe, extruded seamless steel pipe, pipe jacking, etc. According to the shape of the section, seamless steel pipe can be divided into two kinds: round pipe and special-shaped pipe. Special-shaped pipe has square, oval, triangle, hexagonal, melon seed shape, star shape and many complex shapes with wings. The maximum diameter is 900mm, and the minimum diameter is 4mm. According to different uses, there are thick wall seamless steel pipe and thin wall seamless steel pipe. Seamless steel pipe is mainly used for petroleum geology drilling pipe, cracking pipe for petrochemical industry, boiler pipe, bearing pipe and high precision structural steel pipe for automobile, tractor and aviation.
Seamless steel tubes are widely used.
1. Seamless steel tubes for general purposes are rolled by ordinary carbon structural steel, low alloy structural steel or alloy structural steel, with the largest output. They are mainly used as pipes or structural parts for conveying fluids.
2, according to the use of different categories of supply:
A. According to chemical composition and mechanical properties;
B. Supply according to mechanical properties;
C. Supply according to hydrostatic test. Steel pipes supplied in classes a and b shall also be hydrostatic tested if used to withstand liquid pressure.
3, special purpose seamless tube with boiler seamless tube, chemical power with, geological seamless steel pipe and petroleum seamless tube and so on.
Seamless steel pipe has a hollow cross section, a large number of used for conveying fluid pipelines, such as conveying oil, natural gas, gas, water and some solid materials pipelines. Compared with solid steel such as round steel, steel pipe has the same bending and torsional strength and is lighter in weight. It is a kind of economical cross section steel.
Seamless steel TUBES ARE DIVIDED INTO TWO CATEGORIES ACCORDING TO THEIR USE: GENERAL PURPOSE (used for water and gas pipelines and structural parts, mechanical parts) and special purpose (used for boilers, geological exploration, bearings, acid resistance, etc.).
|Product||Seamless steel pipe|
|Standard||ASTM, GB, API,JIS,E|
|Material||10#, 20#, A53(A,B), A106(B,C), A179-C, ST37, ST42, ST35.8, St42-2, St45-8, 10#-45#, A53-A369, ST35-ST52,AISI 1020/1045/1050 ,C75
,S45C ,65MN , etc.
|Length||According to requirement|
|Thickness||1 - 60 mm|
|Technique||Hot rolled cold rolled/drawn|
|Port||Tianjin port or Designated port|
|Packaging Details||Bundle, bulk in container or as your demand.|
|Level of deviation||Normalized outside diameter allowable deviation|
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