The crack resistance of spiral welded pipe is better than that of straight welded pipe. The spiral angle of spiral welded pipe is generally 50-75 degrees, so the synthetic stress of spiral welded joint is 60-85% of the main stress of straight welded pipe. Under the same working pressure, the wall thickness of spiral welded pipe with the same pipe diameter is smaller than that of straight welded pipe. The size is accurate. Generally, the diameter tolerance is not more than 0.12%, the deflection is less than 1 / 2000, and the ovality is less than 1%. Generally, the sizing and straightening process can be omitted. | Standerd | GB ASTM API-5L JIS DIN |
| Steel pipe grade | Q235A,Q235B、0Cr13、1Cr17、00Cr19Ni11、1Cr18Ni9、0Cr18Ni11Nb、16Mn、20#、Q345、L245、L290、X42、X46、X70、X80。 |
| Lengh | 6-35m |
| Outer Diameter | 89-2450mm |
| wall thickness | 0.5-25.4mm |
| Processing Service | according to the customer's demand |
| Packaging Details | Bare packing/wooden case /waterproof cloth |
| Terms of Payment | T/T L/C at sight |
| 20 feet container contains dimension | Length under 6000mm/25T |
| 40 feet container contains dimension | Length under 12000mm/27T |
| Min order | 1 Ton |
Spiral welded pipe is mainly used in water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction in China. Used for liquid transportation: water supply and drainage. For gas transmission: gas, steam, liquefied petroleum gas. Used for structure: piling pipe and bridge; Pipes for wharf, road, building structure, etc.Our company has a large number of inventory, can meet your needs in time.
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