High-silicon austenitic stainless steel with concentrated nitric acid has good corrosion resistance. As austenitic stainless steel has comprehensive and good comprehensive properties, it has been widely used in various industries.
Characteristics and uses of austenitic stainless steel:
Steel No.: 30418Cr-8Ni Characteristics: As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties. Good hot workability for stamping and bending, no heat treatment hardening phenomenon (non-magnetic, use temperature -196℃～800℃).
Uses: household products (category 1, 2 tableware, kitchen cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemicals, food industry, agriculture, and ship parts .
Steel No.: 304L18Cr-8Ni-Low Carbon Characteristics: As a low-C 304 steel, its corrosion resistance is similar to that of 304 steel under normal conditions, but after welding or stress relief, its resistance to intergranular corrosion is excellent. In the case of not undergoing heat treatment, it can also maintain good corrosion resistance, generally used below 400 (non-magnetic, use temperature -196 ℃ ~ 800 ℃).
Uses: Used in outdoor machinery, building materials, heat-resistant parts, and parts with difficult heat treatment requirements in the chemical, coal, and petroleum industries that require high grain boundary corrosion resistance.
Steel number: 304J113Cr-7.7Ni-2Cu Features: Cu should be added, and its formability, especially wire drawing and ageing crack resistance, is good, and it can be formed into products with complex shapes. Its corrosion resistance is the same as 304 steel.
Uses: thermos, kitchen sink, pot, pot, heat preservation lunch box, door handle, textile processing machine.
Steel number: 31618Cr-12Ni-2.5Mo Features: Because of the addition of Mo, its corrosion resistance, atmospheric corrosion resistance and high temperature strength are particularly good, and it can be used under harsh conditions. Excellent work hardening (non-magnetic).
Uses: equipment, chemistry, dyes, papermaking in sea water. Oxalic acid, fertilizer and other production equipment; photography, food industry, coastal area facilities, ropes, CD rods, bolts, nuts.
Steel grade: 316L18Cr-12Ni-2.5Mo low-carbon characteristics: as a low-C series of 316 steel, in addition to the same characteristics as 316 steel, it has excellent resistance to intergranular corrosion.
Uses: Among 316 steel applications, it is a product with special requirements for resisting grain boundary corrosion.
Steel No.: 32118Cr-9Ni-Ti Features: Ti element is added to 304 steel to prevent grain boundary corrosion. It is suitable for use at a temperature of 430℃～900℃.
Uses: aircraft, piping, boiler drums.