Grade N80 Oil Well Drilling Tube
Grade N80 Oil Well Drilling Tube
This grade N80 oil well drilling tube is made of 36Mn2V non-quenched and tempered steel. It shows extremely high strength, ductility and toughness, as well as high purity of steel material, especially when used in the harsh environments. With superior quality, the internal tube billet possesses the macrostructure level of no more than 2.5, both coarse and fine series nonmetallic inclusion grade of no more than 2.5, and the total inclusion grade of no more than 16.
Main Specifications
Material | N80, steel grade |
Outer diameter | 2 3/8"-4 1/2", (73.02 |
Wall thickness | 4.83 |
Type of thread | External upset tubing, Non upset tubing |
Function | It serves to transfer oil and gas. |
1. N80 36Mn2V Technological Process
50t electric arc furnace smelting→ LF refining→ VD vacuum degassing treatment→ 3-machine 3-strand alloy steel continuous casting machine (section of casting blank
2. 36Mn2V steel chemical composition and internal control components
36Mn2V steel chemical composition/% as seen in Table 1
Material | C | Si | Mn | P | S | Cr | Ni | Cu | V |
36Mn2V | 0.34-0.39 | 0.25-0.40 | 1.45-1.70 | ≤0.025 | ≤0.015 | ≤0.15 | ≤0.20 | ≤0.20 | 0.11-0.16 |
Description: The toxic trace elements of tube billet, such as As, Sn, Sb, Bi and Pb, respectively occupies no more than 0.020%. The oxygen atom accounts for no more than 20ppm. | |||||||||
36Mn2V steel internal control components/% as seen in Table 2
Item | C | Si | Mn | P | S | Cr | Ni | Cu | V |
Internal control components | 0.34-0.38 | 0.25-0.35 | 1.5-1.60 | ≤0.025 | ≤0.015 | ≤0.15 | ≤0.20 | ≤0.20 | 0.11-0.14 |
Related Names
Petroleum Tube | Tubing in Serve Environment | Fuel Pipe
