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seamless steel pipe
Standing inventory of 2,000 tons, contact us via message or email for details.
seamless steel pipe

1、 the general purpose seamless steel pipe is rolled by ordinary carbon structural steel, low alloy structural steel or alloy structural steel, the maximum output, mainly used for conveying fluid pipeline or structural parts.
2、 according to the use of different supplies into three categories: a, according to the chemical composition and mechanical properties supply; b. Supply according to mechanical properties; c. Supply according to hydraulic test. Steel tubes supplied according to class a and Class b, if used to withstand liquid pressure, shall also be subjected to hydrostatic tests.

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seamless steel pipe Classification

seamless steel pipe Classification

1、According to the production method, the seamless steel pipe can be divided into hot rolled seamless steel pipe, cold rolled seamless steel pipe, cold drawn seamless steel pipe, extrusion seamless steel pipe, pipe jacking and so on. 

2、According to the section shape, the seamless steel pipe is divided into round and irregular two kinds, irregular pipe has square, oval, triangle, hexagonal, melon seed shape, star shape, with a variety of complex shapes. The maximum diameter is 900mm and the minimum diameter is 4mm. 

3、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 geological drilling pipe, petrochemical cracking pipe, boiler pipe, bearing pipe and automobile, tractor, aviation high-precision structural steel pipe.

seamless steel pipe chemical composition

Grade C Mn P S Si Cu
ASME SA283 GradeA 0.14 0.9 0.035 0.04 0.4 0.2
ASME SA283 GradeB 0.17 0.9 0.035 0.04 0.4 0.2
ASME SA283 GradeC 0.24 0.9 0.035 0.04 0.4 0.2
ASME SA283 GradeD 0.27 0.9 0.035 0.04 0.4 0.2

seamless steel pipe mechanical property

Grade Yield Strength (MPa) Ultimate Tensile Strength (MPa) Elongation at Break (%)
ASME SA283 GradeA 165 310-415 27
ASME SA283 GradeB 185 245-450 25
ASME SA283 GradeC 202 380-515 20
ASME SA283 GradeD 230 415-550 20

seamless steel pipe Specification


Outer Diameter

Seamless:17-914mm 3/8"-36"

Wall Thickness

2-60mm SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80


1-12m as customer requirement


Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded andcoupling,etc.

Surface Treatment

Bare,Painting black,varnished,galvanized,anti-corrosion 3PE PP/EP/FBE coating

Technical Methods


Testing Methods

Pressure test,Flaw detection,Eddy current testing, Hydrostatic testing or Ultrasonicexamination and also with chemical and
physical property inspection

Third Party Inspection


Trade Terms


Payment Terms

FOB 30%T/T,70% before shipment

CIF 30% pre-payment and the balance to be paid upon B/L (copy)

or Irrevocable 100% L/C at sight

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Our steel products are mainly used in chemical industry, petrochemical industry, offshore, seawater pipeline, desalination plant, nuclear engineering, paper and pulp industry.

Oil and GasKuwait is a country of petroleum resources with abundant, oil factory also is very broad, respectively, the oil plant are mainly used for refining oil and oil processing.
MarineSubmarine pipelines carry such things as domestic water, waste water, electrical lines, gas lines, communication lines, and outfall or intake systems.
ConstructionBridge materials with high strength, low cost for selecting the main basis, give priority to with development of the traditional steel and concrete.
EnergyEngineering is mainly aiming at the water pollution and solid waste pollution. using the steel pipe to filtrate in order to improve the quality of water.

Our export country

We are a well known worldwide supply and export seamless steel pipe  in following countries:,Italy, Philippines, France,Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.

Factory Display

Factory Display

Tianjin tisco is a one-stop steel pipe supplier for global manufacturers.