API 5CT Thermal Recovery Pipe Series
Used in thermal recovery wells, the temperature of which is 200 °C - 400 °C
E. Thermal Recovery Pipe Series
Used in thermal recovery wells, the temperature of which is 200 °C - 400 °C
Applicable standards and technical requirements
API SPEC 5CT
API SPEC 5CT specification for casing and tubing
Mechanical Property
Grade | Yield Strength/Mpa | Tensile strength/Mpa | Elongation% | Yield Strength | Average value of impact toughness | |
Indoor temperature | 350°c | L-10-21°c | T-10-°c | |||
BL80H | 552~758 | ≥689 | API 5CT | ≥500 | 27 | 14 |
BL100H | 690~897 | ≥793 | ≥650 | 34 | 17 | |
BL110H | 758~965 | ≥862 | ≥700 | 41 | 20 | |
Creep Property
Grade | Temporature°c | Steady Creep rate% |
BL80H | 350 | ≤5x10 5 |
BL100H | ||
BL110H |
Note:300Mpa of stress
Mechanical Property
Supply steel grade: All API asteel grade as well as Beilai’s own steel
Grade | Total elongation under load % | Yield strength/Mpa | Total elongation under load | Elongation % |
55 | 0.5 | 379~552 | ≥517 | Calculated according to API 5CT formula |
80 | 0.5 | 522~758 | ≥655 | |
110 | 0.6 | 758~965 | ≥862 | |
130 | 0.65 | 896~1102 | ≥1000 |
