Seamless steel pipes have a hollow cross-section and are widely used as pipes for transporting fluids, such as pipes for transporting oil, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, the steel pipe is lighter in weight when the bending and torsional strength is the same, and it is an economical section of steel.
Seamless steel pipes are widely used.
1. General-purpose seamless steel pipes are rolled from ordinary carbon structural steels, low-alloy structural steels, or alloy structural steels, with the largest output, and are mainly used as pipes or structural parts for conveying fluids.
2. According to different purposes, there are three types of supply:
a. Supply according to chemical composition and mechanical properties;
b. Supply according to mechanical properties;
c. Supply according to hydraulic test. Steel pipes supplied by Types a and b, if used to withstand liquid pressure, are also subject to hydrostatic testing.
3. There are many kinds of seamless pipes for special purposes, such as seamless pipes for boilers, seamless pipes for chemical power, seamless steel pipes for geological use, and seamless pipes for petroleum.
| Standard | API 5L psl1/psl2, ISO9000, DIN2240, ASTM A500, A501, A53 EN10219/EN10210, JIS G3466, GB/T6728,GB/T3094,GB/T3091,GB/T9711 |
| Sizes | 219mm to 2032mm |
| Thickness | 4mm to 30mm |
| NDT Test | UT, RT, hydrostatic |
| Beveled Edges | 30DEG,(-0, +5) |
| Length | 3m-max.24meters,or as required |
| Surface treatment | Black painted/galvanizing etc. |
| Hot Expanded Ends | Available |
| Packing | Loosed PCS/nylon rope(for the coating pipes) |
| Transportation | By 20/40FT containers or by bulk vessels as per condition |
| Pile shoe | OEM/ODM(for piling) |
| Third-party inspection | SGS/BV/JIS/ISO/API/GB/BC1/EPD&PHD |
| Application | Water/fluid transportation, piling, structural supports, dredging, etc. |
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