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 | |
J55 | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - |
K55 | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - |
Grade | Yield Strength | Tensile Strength | Hardness | Allowable Hardness Variation | |||||
Min | Max | Min | Max | ||||||
Psi | Mpa | Psi | Mpa | Psi | Mpa | HRC | BHN | hrc | |
J55 | 55000 | 379 | 80000 | 552 | 75000 | 517 | - | - | - |
K55 | 55000 | 379 | 80000 | 552 | 95000 | 655 | - | - | - |
Description | Range 1 | Range 2 | Range 3 |
Tubing | 6.10-7.32 M | 8.53-9.75 M | 11.58-12.80 M |
Casing | 4.88-7.62M | 7.62-10.36 M | 10.36-14.63 M |
Pup Joint | 0.5-6.0 M ( 2FT-20FT) |
Source: https://www.derbosteelpipe.com/api-5ct-k55-octg-tubing-hot-rolled-eue-r2-black-painting-treatment.html
Copyright © 2015-2025 China Manufacturers, CNMFRS.COM, All rights reserved.
谷歌优化(Google SEO)