Industrial News
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What is the difference between cold drawn steel pipe and hot rolled steel pipe
(1) The difference between hot working and cold working: hot rolling is hot working, and cold drawing is cold working. The main difference: hot rolling is rolling above the recrystallization temperature, cold rolling is rolling below the recrystallization temperature; cold rolling is sometimes he...Read more -
Technical characteristics of double-sided submerged arc welding spiral steel pipe
1. During the forming process of the steel pipe, the steel plate deforms evenly, the residual stress is small, and the surface does not produce scratches. The processed steel pipe has greater flexibility in the size range of steel pipes with the diameter and wall thickness, especially in the prod...Read more -
Heat treatment technology of oil casing
After the oil casing adopts this heat treatment method, it can effectively improve the impact toughness, tensile strength, and anti-destructive performance of the oil casing, ensuring good value in use. Petroleum casing is a necessary pipe material for drilling oil and natural gas, and it needs t...Read more -
Annealing And Quenching of Cold Drawn Steel Pipe
Annealing of cold drawn steel pipe: refers to metal material heated to the appropriate temperature, maintained a certain time, and then slowly cooled heat treatment process.Common annealing process: recrystallization annealing, stress annealing, spheroidizing annealing, complete annealing, etc.An...Read more -
Delivery Length of Stainless Steel Pipe
The delivery length of stainless steel pipe is also called the length requested by the user or the length of the contract. There are several rules for delivery length in the specification: A. Normal length (also known as non-fixed length): Any stainless steel pipe whose length is within the lengt...Read more -
Stainless Steel Pipe Process Types and Surface Condition
Process Type Surface Condition HFD: Hot Finished, heat treated, descaled Metallically Clean CFD: Cold Finished, heat treated, descaled Metallically Clean CFA: Cold finished bright annealed Metallically Bright CFG: Cold finished, heat treated, ground Metallically bright-ground, and the ...Read more