OCTG High Collapse and High Performance Steel Grades
OCTG High Collapse and High Performance Steel Grades
L80 HC is a controlled yield strength product with demonstrated collapse resistance exceeding the minimum values for standard API L80.
L80 HP is a controlled yield strength product with the highest demonstrated collapse resistance and with the added benefit of a higher than minimum internal yield pressure than standard API L80.
N80 HC is a product with a demonstrated collapse resistance exceeding the minimum values for standard API N80.
N80 HP is a product with the highest demonstrated collapse resistance exceeding the minimum internal yield pressure for standard API N80.
P110 HC is a product with a demonstrated collapse resistance exceeding the minimum values for standard API P110.
P110 HP is a product with the highest demonstrated collapse resistance exceeding the minimum internal yield pressure for standard API P110.
Q125 HC is manufactured to API specification 5CT. This is a product with a demonstrated collapse resistance exceeding the minimum values for standard API Q125.
Q125 HP is a product with a higher demonstrated collapse resistance, exceeding the minimum internal yield pressure for standard API Q125.
Q125 XHP is a product with the highest demonstrated collapse resistance, exceeding the minimum internal yield pressure for standard API Q125.
Product | Minimum Yield Strength | Maximum Yield Strength | Minimum Tensile Strength | Maximum Hardness |
L80 HC | 80,000 psi | 95,000 psi | 95,000 psi | 23.0 HRC |
L80 HP | 85,000 psi | 95,000 psi | 95,000 psi | 23.0 HRC |
N80 HC | 80,000 psi | 110,000 psi | 100,000 psi | None |
N80 HP | 95,000 psi | 110,000 psi | 100,000 psi | None |
P110 HC | 110,000 psi | 140,000 psi | 125,000 psi | None |
P110 HP | 125,000 psi | 140,000 psi | 130,000 psi | None |
Q125 HC | 125,000 psi | 150,000 psi | 135,000 psi | Hardness variation requirement |
Q125 HP | 135,000 psi | 150,000 psi | 140,000 psi | Hardness variation requirement |
Q125 XHP | 135,000 psi | 150,000 psi | 140,000 psi | Hardness variation requirement |