OCTG Steel Tube Seamless Casing Pipe For Oilfield Well Drilling Using
Oil casing pipe descriptions:
Casing pipe is the steel pipe to support the wall of oil & gas wells, which falls into surface casing,
protective casing and production casing.
Features:
1. Alloy steel pipe
2. Hot-rolled seamless pipe
Technical specification:
OD | 4-1/2“ to 20” / 114.3mm to 508mm |
Wall Thickness | 5.21 - 22.22 mm |
Thread | STC.BTC.LTC |
Length | R1(4.88-7.62M). R2(7.62-10.36M). R3(10.36-14.63Meters) |
Standard | API 5CT |
Steel grade | J55, K55, M65, N80, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr, C90, C95, T95, P110, Q125 |
Mechanical Properties:
Grade | Yield Strength | Tensile Strenght | Hardness | Allowable | |||||
Min | Max | Min | Max | Max | Hardness | ||||
Psi | Mpa | Psi | Mpa | Psi | Mpa | HRC | BHN | Variation | |
J55 | 55,000 | 379 | 80,000 | 552 | 75,000 | 517 | - | - | - |
K55 | 55,000 | 379 | 88,000 | 552 | 95,000 | 655 | - | - | - |
N80 | 80,000 | 552 | 110,000 | 758 | 100,000 | 689 | - | - | - |
N80-1 | 80,000 | 552 | 95,000 | 655 | 95,000 | 655 | 23 | 241 | - |
C90 | 90,000 | 621 | 105,000 | 724 | 100,000 | 689 | 25.4 | 255 | 3 |
C95 | 95,000 | 655 | 110,000 | 758 | 105,000 | 724 | - | - | - |
T95 | 95,000 | 655 | 110,000 | 758 | 105,000 | 724 | 25.4 | 255 | 3 |
P110 | 110,000 | 758 | 140,000 | 965 | 125,000 | 862 | - | - | - |