When it comes to Oil casing materials, API 5CT L80 is one of the most commonly used grades in the industry. This particular grade is known for its High strength and Corrosion resistance, making it a popular choice for Oil and gas drilling operations. In this blog post we will explore the characteristics of API5CT L80 and its suitability for use in oil casing.
API5CT L80 is a steel specifically designed for use in oil and gas drilling operations. It is made from high-strength low–alloy steel, known for its durability and corrosion resistance. This makes it ideal for oil casing as it can withstand the harsh conditions of drilling operations and provide long-lasting protection for the wellbore.
api 5ct L80 casing Tubing Range Lengths | |||
Range 1 | Range 2 | Range 3 | |
CASING (PE/T and C/SF) | |||
Total range length, inclusive Permissible variation, max a | 4.88 to 7.62 1.83 | 7.62 to 10.36 | 10.36 to 14.63 1.83 |
1.52 | |||
TUBING AND CASING USED AS TUBING | |||
(PE/T and C/SF) | |||
Total range length, inclusive Permissible variation, max a | 6.10 to 7.32 b | 8.53 to 9.75 c | 11.58 to 12.80 d |
0.61 | 0.61 | 0.61 | |
INTEGRAL TUBING connectionS (including IJ/PE | |||
and IJ/SF) | |||
Total range length, inclusive Permissible variation, max a | 6.10 to 7.92 e | 8.53 to 10.36 | 11.58 to 13.72 0.61 |
0.61 | 0.61 | ||
PUP JOINTS | Lengths: 0.61; 0.91; 1.22; 1.83; 2.44; 3.05 and 3.66 e | ||
Tolerance: ±0.076 | |||
a Length variation applies to rail car shipment to the point of use and does not apply to order items of less than 18,144 kg of Pipe. | |||
b By agreement between purchaser and Manufacturer, the maximum length may be increased to 8.57 m. | |||
c By agreement between purchaser and manufacturer, the maximum length may be increased to 10.76 m. | |||
d By agreement between purchaser and manufacturer, the maximum length may be increased to 17.72 m.0.61 m pup joints may be furnished up to 0.91 m long by agreement between purchaser and manufacturer, and lengths other than those listed may be furnished by agreement between purchaser and manufacturer. |
One of the main advantages of using API5CT L80 for oil casing is its ability to withstand high pressure and high temperature conditions. This makes it ideal for deep and challenging drilling environments where the casing needs to be able to withstand extreme conditions without compromising the integrity of the wellbore. In addition, API5CT L80 is known for its excellent corrosion resistance, which further enhances its suitability for oil casing applications.
In addition to its mechanical properties, API5CT L80 meets technical specifications set by the American petroleum Institute (API). This means that it has been rigorously tested and proven to meet industry standards for petroleum casing materials, ensuring that it is reliable and safe to use in drilling operations. This gives operators and drilling Companies peace of mind knowing they are using high-quality, certified materials for their oil casing needs.

Overall, API5CT L80 is a highly versatile and reliable material for oil casing applications. Its high strength, corrosion resistance and ability to withstand extreme pressure and temperature conditions make it ideal for oil and gas drilling operations. By using API5CT L80 for oil casing, operators can ensure the safety and integrity of their wellbore while also benefiting from a material that has been rigorously tested and certified to meet industry standards. It’s no surprise, then, that API5CT L80 remains a popular choice for oil casing in the industry.