API 5CT L80 Petroleum Steel Tubing
API 5CT L80 Petroleum Steel Tubing
This API 5CT L80 petroleum steel tubing primarily serves to transfer oil and gas. Generally speaking, we can only make L80-9CR type product. The L80-1 type requires full length quenching and tempering, and its stability is not very strong.
Major factors that may influence the strength of materials include chemical composition, rolling technology, as well as technology for heat processing. The rolling factor makes small influence on the L80 petroleum steel tubing that has been quenched and tempered. Thus, the main working procedures for this product strength are steeling making and heat processing. In the production process, we analyze the fluctuation that may appear during steel making and heat processing. Also, we manage to narrow the fluctuation range to better control the working procedure and then to improve the stability of the mechanical properties of L80 product.
To meet the needs of our customers, we will pay attention to each step of the tubing production and processing which strictly accords with the relevant standards.
Main Specifications
Material | L80, steel grade |
Outer Diameter | 2 3/8"-4 1/2", (73.02 |
Wall Thickness | 4.83 |
Form of Thread | External upset, Non upset |
Function | It can transfer oil and gas. |
| R1 | R2 | R3 |
6.10-7.32 | 8.53-9.75 | 11.58-12.80 | |
Max. Length Range for 100 ％ Carload | 0.61 | 0.61 | 0.61 |
Mechanical Properties
Steel Grade | Yield Strength | Tensile Strength | Rockwell Hardness | Brinell Hardness |
L80-1 | 552-655 | ≥655 | ≤23 | ≤241 |
L80-9Cr | 552-655 | ≥655 | ≤23 | ≤241 |
L80-13Cr | 552-655 | ≥655 | ≤23 | ≤241 |
Allowing for the different geological conditions, our company specially produces this L80 petroleum steel tubing for the subsurface environment of complicated stress conditions.
Our L80 petroleum steel tubing mainly includes three types, such as L80-1, L80-9Cr and L80-13Cr. All of them can provide outstanding corrosion resistance. In addition, they all possess the yield strength of 552 to 655MPa and the tensile strength of above 655MPa, providing wonderful mechanical properties. The surface of our product is processed by heat treatment, which makes smooth appearance without any phenomenon like crease, hairline, separation, crack or scab. After the hydraulic test, hardness test and some others, our product can well ensure its sealing performance and impact resistance.
Related Names
Pipeline for Oil Transferring | Industrial Pipe | Gas Pipe
