Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association


API 5CT carbon steel oil pipe


1. API 5CT & ISO9001:2000 certificate 
2. Specialized in producing petroleum casing pipe 
3. Grade of steel H40 J55 K55 N80

 details of the oil pipe:Seamless steel pipe|

Alloy pipe|
spiral steel pipe|
Galvanized pipe|


Oil casing pipe)
Specification:   114.30-339.73*5.21- 12.19
Standard:API SPEC 5CT
Material:J55,K55,L80-1,C-75, N-80, C-90, T-95, Q-125, P110
Connection:Casing: LTC, STC, BTC.Tubing: NUE, EUE
End:Beveled, Square cut. And pipe protection cap specially for casing and tubing
Surface:Corrosion proofing water based paint
Heat treatment:Normalized, Quencher+Temper
Surface:oiled or black/clean painted to prevent rust
Packing: caps on two end of every pipe outer; hexagonal shape bundles wrapped with  strong steel strip or customers' requests
Length:  2-20m random or fixed.such as 5.8m fixed,6m fixed,5-7m randometc
Material Size Out diameter  (mm) Wall thickness (mm)
J55 K55 L80-1 N80-1 C90 P110 4-1/2" 114.3 5.21-8.56
J55 K55 L80-1 N80-1 C90 P110 5-1/2" 139.7 6.2-10.54
J55 K55 L80-1 N80-1 C90 P110 6-5/8" 168.28 7.32-12.06
J55 K55 L80-1 N80-1 C90 P110 7" 177.8 5.87-12.65
J55 K55 L80-1 N80-1 C90 P110 8-5/8" 219.08 7.72-10.16
J55 K55 L80-1 N80-1 C90 P110 9-5/8" 196.84 8.94-11.99
J55 K55 L80-1 N80-1 C90 P110 10-3/4" 273.05 8.89-11.43
J55 K55 L80-1 N80-1 C90 P110 13-3/8" 339.73 9.65-12.19


how do you get our pipe:



Oil pipeline |
Welded steel Pipe
Casing Pipe |
Seamless pipe | 
Drill pipe||

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