API K55大口径无缝套管20" 94ppf (508x11.13mm) BC扣
K55 20" 106.5PPF 508*12.7mm BC扣
K55 20" 133PPF 508*16.13mm BC扣
K55 SMLS Casing OD536mm*ID475mm API 5CT
L80 SMLS Casing OD536mm*ID475mm
K55 SMLS Casing OD510mm*ID447mm
K55 SMLS Casing OD367mm*ID312mm
L80 SMLS Casing OD367mm*ID312mm
K55 SMLS Casing OD272mm*ID212mm
L80 SMLS Casing OD198mm*ID158mm
Standard:API 5CT
Grade:J55,K55,N80,L80,P110,Q125
Material:seamless casing steel pipe(ERW is also ok)
Threaded:BTC,LTC,STC
Couplings with PIN and BOX
Outer diameter:4 1/2"-20" (114.3mm-508mm)
Wall thickness:5.21mm-16.13mm
Lb/Ft:9.5-40.5