What is ASTM A312?
ASTM A312 is a specification for seamless and welded austenitic stainless steel pipes that perform well in high temperature and corrosive environments. Common grades of this specification are 304/304L and 316/316L.ASTM A312 Stainl...
2024-07-03
Choice between annealing and normalizing
Normalizing is to heat the steel pipe (such as seamless pipe, welded steel pipe) to 30~50 degrees above Ac3 or Accm, and cool it at a cooling rate slightly higher than annealing after keeping warm. Annealing is to heat the steel p...
2024-07-02
How to store galvanized pipes in summer
The weather is hot and humid in summer. Under this condition, the surface of galvanized products is prone to alkali resistance (commonly known as white rust). If the plated parts are not picked up and unpacked in time after arrivi...
2024-07-02
What is ASTM A269?
ASTM A269 is a material standard for austenitic stainless steel seamless and welded mechanical tubes. It is mainly used to specify the requirements for the size, chemical composition, mechanical properties, manufacturing process a...
2024-07-01
High-pressure boiler tube VS ordinary boiler tube
Boiler tube is a seamless tube, and the manufacturing method is the same as that of seamless tube, but there are strict requirements on the steel type used to manufacture steel tube. According to the use temperature, it can be div...
2024-07-01
What is bright annealed tube?
Bright annealed tube is a stainless steel tube processed by a special heat treatment process, and its main feature is the highly optimized surface quality.The main purpose of bright annealing treatment is to remove scale, oil stai...
2024-06-28
