Grade | Chemical Composition | ||||||||||||
C | Mn | Mo | Cr | Ni | Cu | P | S | Si | |||||
Min | Max | Min | Max | Min | Max | Min | Max | Max | Max | Max | Max | Max | |
N80 | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - |
Mechanical Properties | |||||||||
Grade | Yield Strength | Tensile Strength | Hardness | Allowable Hardness Variation | |||||
Min | Max | Min | Max | ||||||
Psi | Mpa | Psi | Mpa | Psi | Mpa | HRC | BHN | hrc | |
N80 | 80000 | 552 | 110000 | 758 | 100000 | 689 | - | - | - |
Source: https://www.derbosteelpipe.com/octg-pipe-joints-api-5ct-n80-hot-rolled-2-7-8-inch-length-r2-painting.html
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