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.
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
Size | Outer Diameter | Seamless:17-914mm 3/8"-36" |
Wall Thickness | 2-60mm SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80 | |
Length | 1-12m as customer requirement | |
Ends | 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 | Hot-rolled/Cold-drawn/Hot-expanded | |
Testing Methods | Pressure test,Flaw detection,Eddy current testing, Hydrostatic testing or Ultrasonicexamination and also with chemical and | |
Third Party Inspection | SGS BV MTC | |
Trade Terms | FOB CIF CFR | |
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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Application
Our steel products are mainly used in chemical industry, petrochemical industry, offshore, seawater pipeline, desalination plant, nuclear engineering, paper and pulp industry.
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
Tianjin tisco is a one-stop steel pipe supplier for global manufacturers.
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