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
