Method for Ensuring the Bending and Straightening of Carbon Steel Pipe
After the processing of the carbon steel pipe is complete, there will be some twists and turns, and the reduction of these twists and turns has to rely on the straightening machine to complete. Theref...
Effect of Different Heat Treatment Processes on Groove Corrosion of HFW Welded Pipe
The potential difference between the weld seam of HFW welded pipe and the heat affected zone and the base metal is the main cause of groove corrosion; through effective heat treatment, the microstruct...
Heat Treatment Technology of Casing Pipe
27MnCrV steel AC1 = 736 °C, AC3 = 810 °C, sub-temperature quenching heating temperature between 740-810 °C selected. Sub-temperature quenching selection of heating temperature 780 °C, quenching and he...
Oil Casing Specifications and Performance Characteristics
Performance characteristics of casing pipe:
The product has the common advantages of ERW pipe and seamless pipe;
High product dimensional accuracy, uniform organization, good toughness, etc.
The prod...
J55 vs N80
J55 and N80 casing pipe:
1. The yield strength of N80-1/Q is 173 ~ 206 MPa higher than that of J55.
2. The elongation of N80-1/Q is higher than that of J55 on the same sample area.
3. Wit...
Casing pup joint
Short casing generally include: magnetic positioning pup joints and casing pup joints.
Magnetic positioning pup joints: A short casing used to accurately determine the depth of oil and gas layers whe...
