China Casing API Spec 5CT Casing 7 5/8 Inch Grade C90-1 24 lb/ft Range 3 STC Steel Casing
Technical Specification
2.OCTG Casing and Tubing Showcase
3.Casing and Tubing Facility
4.OCTG Casing and Tubing Quality Control
4.Packing and Transportation
5.Our Service
Chengdu Derbo Steel focus on octg casing,tubing,drill pipe,coupling and pup joints for project application for more than 10 years with good
quality and reasonable price,has succeed to coopearated with Sheel,Lukoil and other famous oil&gas companies all over the world.
If you have any inquiry please feel free to contact us,we will provide you the most competitive and technical support.
| Standard | API 5CT/ ISO11960 | |
| Grade | Group.1 | H40/PSL.1, J55/PSL.1, J55/PSL.2, J55/PSL.3, K55/PSL.1, K55/PSL.2, K55/PSL.3, |
| N80(1)/PSL.1, N80(1)/PSL.2, N80(Q)/PSL.1, N80(Q)/PSL.2, N80(Q)/PSL.3 | ||
| Group.2 | M65/PSL.1, M65/PSL.3, L80/PSL.2, L80(1)/PSL.1, L80(1)/PSL.3, L80(9Cr)/PSL.1, L80(13Cr)/PSL.1, C90/PSL.1, C90/PSL.2, C90/PSL.3, T95/PSL.1, T95/PSL.2T95/PSL.3 | |
| Group.3 | P110/PSL.1, P110/PSL.2, P110/PSL.3, | |
| Group.4 | Q125/PSL.1, Q125/PSL.2, Q125/PSL.3, | |
| Minimum Order Quantity | 30 Ton | |
| Outside DiameterRanges | Tubing | 1.66 inch to 4 1/2 inch or 42.16mm to 114.3mm |
| Casing | 4 1/2 inch to 20 inch or 114.3mm to 508mm | |
| Wall Thickness | According to API 5CT Standard | |
| Length | Tubing | R1 (6.10m to 7.32m), R2 (8.53m to 9.75m), R3 (11.58m to 12.80m) |
| Casing | R1 (4.88m to 7.62m), R2 (7.62m to 10.36m), R3 (10.36m to 14.63m) | |
| Type | Seamless | |
| Type of End-Finish | Tubing | P, I, N, U |
| Casing | P, S, B, L | |
Technical Specification
| Item | Tolerance | |
| OD | D<114.3mm | ±0.79mm |
| D≥114.3mm | +1%D | |
| -0.5%D | ||
| WT | -12.50% | |
| Weight | Single Lengths | +6.5%,-3.5% |
| Carload 18 144 kg (40 000 lb) or more | -1.75% | |
| Carload less than 18 144 kg (40 000 lb) | - 3,5 % | |
| Chemical Composition and Mechanical Property | |||||||||||||||||||
| Steel Grade | Type | Chemical components | Mechanical performance | Hardness Max. | |||||||||||||||
| C | Mn | Mo | Cr | Ni (Max) | Cu (Max) | P (Max) | S (Max) | Si (Max) | Yield Strenght (MPa) | Tensile strenght (MPa) | |||||||||
| Min. | Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | HRC | HBW | |||||||
| C90 | 1 | - | 0.35 | - | 1.2 | 0.25b | 0.85 | - | 1.5 | 0.99 | - | 0.02 | 0.01 | - | 621 | 724 | 689 | 25.4 | 255 |
3.Casing and Tubing Facility
4.OCTG Casing and Tubing Quality Control
4.Packing and Transportation
5.Our Service
Chengdu Derbo Steel focus on octg casing,tubing,drill pipe,coupling and pup joints for project application for more than 10 years with good
quality and reasonable price,has succeed to coopearated with Sheel,Lukoil and other famous oil&gas companies all over the world.
If you have any inquiry please feel free to contact us,we will provide you the most competitive and technical support.