Thick-walled Spiral Steel Pipe with Quenching Heating Temperature in Critical Zone
Sub-temperature quenching, that is, incomplete quenching of thick-walled spiral steel pipe, or quenching in critical zone, heating quenching in two-phase zone, means that the steel piece is heated bet...
Raw Material of SSAW Steel Pipe
The raw material of ssaw steel pipe is a hot rolled plate, which is a strip or a coil.
Hot-rolled steel sheets, that is, hot-rolled steel-rolled steel sheets or steel strips, commonly known as hot pl...
Welded Pipes Can Be Used In Those Places
1. Welded steel pipe for low-pressure fluid transportation (GB/T3092-1993) is also called general welded pipe, commonly known as black pipe. It is a welded steel pipe used for conveying general lower ...
Seamless Steel Pipe Cutting Treatment And Heat Treatment
1. Seamless steel pipe cutting treatment problem
After the seamless steel pipe is straightened, the initial inspection of the soot is performed to determine the length of the cutting head and the ta...
Heat Treatment Process Classification Of Seamless Steel Tubes
Seamless steel tube heat treatment is pided into three categories:
(1) Final heat treatment to meet the performance requirements of seamless steel products; (2) heat treatment in the heat treatment st...
Control Of Scab Defects In Hot Rolled Tubes
The crucible defects in the hot-rolled seamless steel pipe are present on the inner surface of the steel pipe, similar to the size of the soybean granules. Most of the crucibles have foreign objects t...
