C90-1 OCTG Casing, API Spec 5CT, 24 lb/ft, Range 3, STC
Key Specifications / Features
Model No.: DB-OCTG-39 Hits: 61
China C90-1 OCTG Casing Manufacturer Derbo offers C90-1 OCTG Casing, Standard API Spec 5CT, Range 3, W.T 24 lb/ft, size 7 5/8 Inch, STC Ends.
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Detail Information
Type: OCTG Casing.
Material: C90-1.
Size: 7 5/8 Inch.
W.T: 24 lb/ft.
Length: RANGE 3.
Standard: API Spec 5CT.
Ends: STC.
Material: C90-1.
Size: 7 5/8 Inch.
W.T: 24 lb/ft.
Length: RANGE 3.
Standard: API Spec 5CT.
Ends: STC.
| 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 strength (MPa) |
Tensile strength (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 |
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