Standard: API 5CT & 5B
Steel Grade: H40,J55, K55, N80, R95,L80, C90, T95, P110, Q125
Dimension: Tubing coupling from 2-3/8 to 4-1/2, Casing coupling from 4-1/2 to 20
End finish: NUE, EUE (tubing coupling); STC, LTC, BTC (casing coupling)
Colors: J55/ K55-Bright Green,P110-White, N80/ L80-Red etc
PACKING: by wooden cases, wooden pallet, or as per customer request
As required by API 5CT standard, the couplings are always given color layer in order to differ the steel grade.
J55-Green,
N80-Red
P110-White
C75-Blue
C-90-Brown
5.Casing Coupling: Hebei Borun Steel Trade Co.,Ltd is a manufacturer and exporter with 15 years' experiences.We mainly exports Carbon Steel(Seamless steel pipe,OCTG and so on).If you're interested,pls contact me. Technical standard API SPEC 5CTã??API SPEC 5B Product grade H40ã??J55ã??K55ã??N80-1ã??N80Qã??L80ã??C95ã??T95ã??P110 Specification range OD127~365.12mmï¼?4 1/2"~13 3/8"ï¼? Thread types Short round thread(STC)ã??Long round thread(LC)ã??Buttress thread(BC) Application of product Internally threaded cylinder for joining two lengths of threaded casing pipe Contact Info Email:octgpipes@126.com Whatsapp/Skype:+86 18233500310 Linkedin:Tina Lee
Simple / easy maintenance, No down time, No loss of production Provides torsional vibration isolation & damping No metal to metal contact, hence electrically insulated Low initial, operation & replacement cost No lubrication Long life
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Full Coupling
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