Puyang Zhongshi Group Co., Ltd.
Puyang Zhongshi Group Co., Ltd.
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Oil Well Alloy Steel Casing Pipe With Thread LTC/STC/BTC For Petroleum Industry
Casing pipe 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
Steel grade: H40,J55,K55,M65,L80-1,N80-1,N80Q,C90,P110,Q125
Size: 4 1/2"--20" for seamless casing
Features:
1. Hot rolled seamless pipe
2. Size OD 4 1/2”-20”
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% | ||
Mechanical properties:
| 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 | - | - |
