The difference between ASTM and ASME standards:
ASME American Society of Mechanical Engineers Standard
ASTM American Society for Testing and Materials Standards
Stainless steel welded pipe is an important field of stainless steel plate/coil deep processing, and it is also the main material for laying corrosion-resistant pipes in petroleum, chemical industry, medicine, food, and laying corrosion-resistant pipes. It is the main component of power generation equipment, shipbuilding industry, refrigeration equipment, and seawater desalination equipment. Therefore, stainless steel welded pipes have attracted more and more attention from users and attention from relevant departments.
Steel pipe steel grade introduction,1.A stands for ordinary carbon structural steel, F stands for stainless steel
2. P110, L80, K55 and J55 all refer to the steel grades of oil pipes and casings. According to the requirements of the API 5CT executive standard, they are divided into 4 groups of steel grades internationally...
Compared with SSAW, there is little difference in price between ERW steel pipe and SSAW steel pipe. The length of SSAW weld joint is about 2~3 times of ERW weld joint, and its internal weld tumor has no technical ability to remove