Spiral Welded Steel Pipes

Our production range for spiral welded steel pipes (ssaw) : 
Pipe length: 
6-16 M (special lengths up to 24 M.) 
Outside diameter: 
219. 1-3048 mm. 
Wall thickness: 
4-26 mm. 
Welding process: 
Saw-submerged arc welding
Petroleum and gas line pipes: 
Api 5l, din 17172, gost 20295
Water line pipes: 
En 10217-1, din 1626, awwa c200, din 2460, bs 534, uni 6363
General purpose pipes: 
Bs 3601, din 1626
Piling pipes: 
ASTM a 252
Others: 
Bs 534, awwa c208
External coating
Epoxy coating: 
Awwa c-210, nfa 49709, ts en 10289
Polyethylene coating: 
Din 30670, nfa 49710, ts 5139
Polypropylene coating: 
Din 30678, nfa 49711
Bitumen coating: 
Din 30673, bs 534
Coal-tar enamel coating: 
Awwa c-203
Lining
Epoxy lining: 
Awwa c-210, nfa 49709, ts en 10289
Bitumen lining: 
Ts 4356, din 30673, bs 534
Cement mortar lining: 
Awwa c-205, bs 534