Stainless steel 304: as a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, good hot workability such as stamping and bending, no heat treatment hardening phenomenon, non-magnetic. Applications: tableware, kitchen utensils, water heaters, boilers, auto parts, medical equipment, food machinery, wine storage, pressure vessels (chemical machinery, chemical equipment).
Stainless steel 304L is a low-carbon 304 steel, and its corrosion resistance is similar to that of 304 under normal conditions, but after welding and stress relief, it has good resistance to intergranular corrosion, and can also maintain good corrosion resistance without heat treatment. Applications: petrochemical industry, building materials.
Stainless steel 321 adds Ti element to 304 steel to prevent intergranular corrosion, suitable for positive 430 to 900 degrees below, non-magnetic. Applications: automotive exhaust, heat exchangers, containers and other products that are not heat treated after welding, due to the addition of Ti element, it is not suitable for making food processing equipment.
316 steel is added MO element, so its corrosion resistance, atmospheric corrosion resistance and high temperature strength performance are particularly good, and can be used under harsh conditions. 316 steel is suitable for use below 900 degrees. Applications: equipment used in seawater, chemical, dye, paper, acetic acid, fertilizer and other production equipment, food industry and coastal area facilities, products with special requirements for resistance to intergranular corrosion.
