Specification :

We supply all seamless and ERW casing pipes according to API Spec 5CT latest edition. Our casing are produced by the leading OCTG manufacturers in China like TPCO, Hengyang Valin, Baotou Steel, Jiangsu etc. Grades: H40, J55, K55, N80, L80, HC N80, C90, T95, P110, HC P110. The outer diameter of casing is ranging from 4 1/ 2" to 20" . 30� conductor with plain ends or fast connection is also available.

Manufacturing method Cold Drawn or Hot-rolled Seamless, ERW, LSAW
Size ( OD) 4 1/ 2" , 5" , 5 1/ 2" , 6 5/ 8" , 7" , 7 5/ 8" , 8 5/ 8" , 9 5/ 8" , 10 3/ 4" , 13 3/ 8" , 16" , 18 5/ 8" , 20" , 30�
Grade J55, K55, N80, L80-1, L80-9Cr, L80-13Cr, C90, T95, P110, P110-13Cr, Q125
API Connections Round thread( 8tpi, STC and LTC) , Buttress thread ( 5tpi, BTC)
Premium Connections HSM, TP-CQ, RJS ( compatible with VAM and HSC)
Length range Range 1, 2, 3
Technical modifications Special clearance;
For extra clearance applications Special bevel;
20° bevel
Slotted ( Screen casing)