الوصف

**4L is a very low carbon containing high alloy austenitic stainless steel. The steel designed for the harsh corrosion conditions. **4L has been standardized in many countries now, and have already been approved in the manufacture of pressure vessels.

**4L alloy with the same used as CrNi austenitic steel, has a good resistance to pitting and crevice corrosion capabilities, very high stress corrosion cracking capacity, good intergranular corrosion resistance property, good processability and Solderability. The highest temperature heating up to ***0 ℃ when hot forging, the lowest temperature stop forging not less than **0℃. This steel may hot forming during***0 - ***0℃. The steel heat treatment process is ***0 - ***0 ℃, cold fast afrer heated. Although this may use common steel welding technology for welding, but the best way are manual arc welding and TIG welding.