How to Avoid Quality Problems With Seamless Steel Tubes
Most of the seamless steel tubes produced now use hot rolling technology. Because of the high temperature, the deformation resistance is relatively small. Generally, the steel plate is used to complet...
Causes of Whitening on the Surface of Galvanized Steel Strip
Causes of whitening on the surface of galvanized steel strip
If a layer of condensed water is adhered to the surface of the galvanized layer, it reacts with oxygen, carbon dioxide, hydrocarbons, sul...
ERW Welded Steel Pipe
"ERW steel pipe" is a straight seam resistance welded pipe, abbreviated as ERW. It is used to transport vapor and liquid objects such as oil and natural gas, which can meet various requirements of hig...
J55 Oil Casing Production Process
The J55 casing pipe coupling phosphating process adopted by the J55 petroleum casing coupling supplier is chemical degreasing, acidic rust removal, chemical degreasing (secondary) water washing, acid ...
DSAW, ERW, SSAW, LSAW, EFW Steel Pipe
Welded pipe can be pided into ERW, SSAW, LSAW, EFW:
ERW: Electric resistance welding pipe
EFW: Electric fusion welding pipe
SSAW: Spiral submerged arc welding pipe
LSAW: Longitudinal submerged ar...
Oil Casing Pipe Specification Sheet
Oil Casing Pipe Specification Sheet
Outer Diameter
Theoretical Weight
Wall Thickness
Inner Diameter
...
