Puyang Zhongshi Group Co., Ltd.
Puyang Zhongshi Group Co., Ltd.
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Competitive price API K55 J55 N80 L80 P110 Casing for Oil production
Description:
Casing pipe is the steel pipe to support the wall of oil & gas wells, which falls into surface casing,
protective casing and production casing.
Technical specification:
| Production name | OCTG 11-3/4" API 5CT steel casing pipe |
| OD size (in) | 4-1/2" ~ 20" |
| Steel grade | J55/K55/N80/L80/P110 |
| Thread type | LTC,STC,BTC |
| Length | R1 (4.88mtr-7.62mtr) R2 (7.63mtr-10.36mtr) R3 (10.37mtr-14.63mtr) |
| Heat treatment | Normalized,Quencher+Temper |
Mechanical properties:
Tensile and Hardness Requirements:
| Steel grade | Type | Total elongation under load (%) |
Yield strength (Mpa) |
Tensile strength (Mpa) min | Hardness max | ||
| min | max | HRC | HBW | ||||
| H40 | - | 0.5 | 276 | 552 | 414 | - | - |
| J55 | - | 0.5 | 379 | 552 | 517 | - | - |
| K55 | - | 0.5 | 379 | 552 | 655 | - | - |
| N80 | 1 | 0.5 | 552 | 758 | 689 | - | - |
| N80 | Q | 0.5 | 552 | 758 | 689 | - | - |
| M65 | - | 0.5 | 448 | 586 | 586 | 22 | 235 |
| L80 | 1 | 0.5 | 552 | 655 | 655 | 23 | 241 |
| L80 | 9 Cr | 0.5 | 552 | 655 | 655 | 23 | 241 |
| L80 | 13 Cr | 0.5 | 552 | 655 | 655 | 23 | 241 |
| C90 | 1 | 0.5 | 621 | 724 | 689 | 25.4 | 255 |
| P110 | - | 0.6 | 758 | 965 | 862 | - | -
|
Dimension Tolerances:
| Tolerance | ||
|
Outside Diameter | Pipe Body | D≤101.60mm,±0.79mm |
| D≥114.30mm,+1.0%, -0.5%D | ||
| Coupling | ±1%D | |
| Wall Thickness | 0, -12.5%t | |
| Weight | Single Lengths | +6.5%,-3.5% |
|
Carload Lots or Order Quantity | ≥18144 kg(40000ib),0,-1.75% | |
| ＜18144 kg(40000ib),0,-3.5% | ||
Features:
