standard | API SPEC 5ct |
steel Grade | H40,J55,K55,N80,L80,C-90,C95,T95,P110,Q125,13Cr-80,1CRL80,3CRL80,9CRL80,13Cr-110,Super 13Cr. |
thread type | LC,BC,SC, |
size | 4-1/2"-20" |
Place of Origin | Tianjin China |
Surface | Whole phosphating, or inside phosphating and outside coating |
Uses | oil pipe |
Packaging Details | By carton, wooden case, wooden pallet According to customer demand for packaging and transport. |
5-1/2" casing coupling
2.meet the requirements of API 5 CT and ISO 9001
3.advanced inspection instruments can ensure the quality of products
4.due to our professional technicians and product flexibility ,we can meet customers'special requirements
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buttress thread specification oil well casing sizes coupling API 5CT J55/K55/N80/P110 Casing Coupling 4 1/2\" to 20\" Api Casing Coupling Size 4 1/2-20in Thread VAM NU EU STC LTC BTC Standard API 5CT,GB/T14383,ASME B16. 11,BS 3799 Material K55,J55,N80,N80q,P110,L80 Surface ...