October 31, 2016

ASTM A106 Grade B OD 300mm SCH80 SSAW pipe

Spiral submerged arc welding( SSAW) pipe is made from hot rolled coiled steel by automatic immersed arc weld under typical climatic temperature level. All the pipelines are produced according to API Spec 5L, GB/T9711.1, GB/T9711.2, ASTM A252-89 requirement. Quality Standard of SSAW pipe ASTM A53 Standard Specification for Pipe, Steel, Black […]
November 2, 2021

The difference between ERW, SSAW, LSAW

The production methods of seamless steel pipes are roughly divided into cross-rolling method (Mennesmann method) and extrusion method. The cross-rolling method (Mennesmann method) is to first pierce the tube blank with a cross-rolling roller, and then extend it with a rolling mill. This method has a fast production speed, but […]