Spiral steel pipe Large diameter ERW seamless welded spiral
Introduction
Spiral steel pipe is a spiral seam steel pipe made of strip steel coils as raw materials, often extruded and formed by automatic double-wire double-sided submerged arc welding. The spiral steel pipe feeds the strip steel into the welded pipe unit. After rolling by multiple rollers, the strip steel is gradually rolled up to form a round tube blank with an open gap. The reduction of the squeeze roll is adjusted to control the weld gap at 1~ 3mm, and make both ends of the welding joint flush.
Parameter
| Item | Spiral steel pipe/tube |
| Standard | ASTM, DIN, ISO, EN, JIS, GB, etc. |
| Material
|
Q235A、Q235B、10#、20#、Q345(16Mn)、L245(B)、L290(X42)、L320(X46)、L360(X52)、L390X56)、L415(X60)、L450(X485) X70)、L555(X80)、L290NB/MB(X42N/M)、L360NB/MB(X52N/M)、L390NB/MB(X56N/M)、415NB/MB(X60N/M)、L450MB(X65)、L485MB (X70), L555MB(X80) |
| Size
|
Diameter θ200mm-θ3620mm, or as required
Wall thickness2.5mm-30mm, or as required Length: 1m-12m, or as required. |
| Surface | Black painted, PE/PVC/PP coated, Galvanized, color coated, anti rust varnished, anti rust oiled, checkered, epoxy coating, etc. |
| Application
|
Spiral steel pipes are mainly used in water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction, etc. It is one of the 20 key products developed by our country. For liquid transportation: water supply and drainage. Used for gas transportation: coal gas, steam, liquefied petroleum gas. For structural purposes: used as piling pipes and bridges; used as industrial integrated service pipes for docks, roads and building structures, etc. |
| Export to
|
America, Australia, Brazil, Canada, Peru, Iran, Italy, India, United Kingdom, Arab, etc. |
| Package |
Standard export package, or as required. |
| Price term | EXW, FOB, CIF, CFR, CNF, etc. |
| Payment | T/T, L/C, Western Union, etc. |
| Certificates | ISO, SGS, BV. |
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