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