API 5CT M65 oil casing is usually used in oil and gas drilling to protect the well wall, isolate formation fluids, support well equipment and tools, etc. Due to the complex environment of the oil field, the casing needs to have excellent mechanical properties, corrosion resistance and wear resistance to ensure its long-term and stable operation.
In addition, API 5CT M65 casing is also reflected in the color code of the coupling. The color of its color code represents the steel grade. The M65 steel grade pipe uses l80 steel grade 1 coupling, and the entire coupling color code is a bright green and a blue.
Products Data
API 5CT M65 Casing Pipe Chemical Composition
| Grade | C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≤ | Ni≤ | Cu≤ | Mo≤ | V≤ |
| API 5CT M65 | 0.34-0.39 | 0.20-0.35 | 1.25-1.50 | 0.020 | 0.015 | 0.15 | 0.20 | 0.20 | / | / |
API 5CT M65 Casing Tubing Mechanical Property
| Steel Grade | Yield Strength (Mpa) | Tensile Strength (Mpa) | Hardness, HBW |
| API 5CT M65 | 448-586 | ≥586 | 235 |
API 5CT M65 Oilfield Casing Tolerance
| Item | Allowable tolerance | |
| Outer diameter | Pipe body | D≤101.60mm±0.79mm |
| D≥114.30mm+1.0% | ||
| -0.5% | ||
Products display
API 5CT M65 Casing and Piping

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GNEE has advanced production equipment, scientific and reasonable management, strict quality inspection and reasonable product prices. OEM or ODM is accepted, and thickness, size and coating can also be customized according to customer requirements.
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FAQ
Q: How is the quality?
A: Third-party inspection is welcome. Such as BV, SGS, etc.
Q: How long is the delivery time?
A: If it is in stock, it is generally about 5-10 days. If it is not in stock, it is 15-20 days. It also depends on the quantity.
Q: Can I customize the steel pipe?
A: Of course, we can produce according to your requirements, you can send CAD or design drawings.
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