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Large-diameter seamless steel pipe refers to a steel pipe with larger diameter, thinner wall thickness and no seams. Compared with traditional welded pipes, seamless steel pipes have the advantage of being seamless and able to withstand greater pressure and temperature while also reducing the risk of leakage. Its main features include high strength, corrosion resistance, and good pressure resistance.
1.No seams: The main advantage of seamless steel pipes is that there are no seams, which improves the sealing and reliability of the pipeline and reduces the risk of leakage.2.High strength: Large-diameter seamless steel pipes have high strength and remain stable under high pressure and high temperature conditions.3.Corrosion resistance: Seamless steel pipes can be made of different materials according to the specific working environment to improve their corrosion resistance.4.Accurate dimensions: The dimensions of seamless steel pipes are accurate to meet the needs of different projects.| Grade | C | Mn | P | S | Si |
| ASME SA573 Grade 58 | 0.23 | 0.6-0.9 | 0.035 | 0.04 | 0.1-0.35 |
| ASME SA573 Grade 65 | 0.24 | 0.85-1.2 | 0.035 | 0.04 | 0.15-0.4 |
| ASME SA573 Grade 70 | 0.27 | 0.85-1.2 | 0.035 | 0.04 | 0.15-0.4 |
| Grade | Yield Strength (MPa) | Ultimate Tensile Strength (MPa) | Elongation at Break (%) |
| ASME SA573 Grade 58 | 220 | 415-550 | 21 |
| ASME SA573 Grade 65 | 240 | 415-530 | 20 |
| ASME SA573 Grade 70 | 290 | 485-620 | 28 |
| Product Name | large diameter seamless pipe |
| Standard | ASME A179,JIS G3461,DIN 17175 |
| Out Diameter | 1/2"-48"(6mm-1240mm) |
| Wall Thickness | 1mm-200mm |
| Length | 5.8-12m ,random length or fixed length |
| Heat Treatment | Anneal etc |
| Thecnical | Hot Rolled,Cold Drawn |
| Package | In Bundling,In Bulk |
| Suface Treatment | Oil Coating,Black Painted,Varnish,Anti-Corrosion |
| Payment Terms | T/T,L/C |
| Application | 1>Water Transportation 2>Supply Heat and Gas 3>Long Distance Transport Oil and Natural Gas 4>Agricultural Irrigation 5>Water Conservancy Project |
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