1. What are the materials involved in the ASTM A790 standard?
ASTM A790 is a standard specification for seamless and welded ferritic/austenitic stainless steel pipes. The materials involved are mainly ferritic/austenitic stainless steel. This type of material combines the characteristics of ferritic stainless steel and austenitic stainless steel, and has good strength, corrosion resistance and toughness.
2. What are the common production methods of stainless steel pipes made of ASTM A790?
ASTM A790 pipes will be manufactured by seamless or automatic welding processes, and no filler metal is added during the welding operation. The production of seamless pipes is to form hollow seamless pipes through specific perforation and other processes; welded pipes are to connect plates or strips into tubular shapes through automatic welding processes.
3. In which industries are stainless steel pipes made of ASTM A790 used?
Its application range is wide, including petroleum, chemical, pharmaceutical, food, machinery, aerospace, construction, hardware, boiler gas, plumbing devices, ships, power plants and other industries. For example, in the petrochemical industry, it can be used to transport various chemical media due to its good corrosion resistance; in the food industry, it can be used for pipelines of food processing equipment, etc.
4. What are the specifications of ASTM A790 stainless steel pipes?
Common specifications are diverse, such as round pipes with an outer diameter of 9.5-406.4mm and a thickness of 0.4-8.0mm; square pipes with an outer diameter of 1010-200200mm and a thickness of 0.4-6.0mm; rectangular pipes with an outer diameter of 1020-100200mm and a thickness of 0.4-6.0mm, etc. Special specifications can also be customized according to customer requirements
5. How to determine the price of ASTM A790 stainless steel pipes in the market?
The price is affected by many factors, including the specific composition of the material, the size of the specification, the production process, the market supply and demand relationship, etc.
