Stainless steel is mainly used in the exhaust system, accounting for more than 1/2 of the total amount of automotive stainless steel, 80% for ferrite stainless steel. The exhaust gas generated by the automobile engine passes through the exhaust gas inlet pipe, the front tube, the hose, the converter and the center tube and finally flows out of the muffler. Exhaust system commonly used steel has 409l,436l and so on. Automobile muffler mainly uses stainless steel welded pipe.
It is estimated that the stainless steel tubes used in automobiles account for about 1.5% of the total downstream stainless steel throughput, while the use of stainless steel seamless tubes and welded pipes is about 2:1.
Petrochemical industry includes fertilizer industry:
The demand for stainless steel pipe is extremely high, the industry mainly uses stainless steel seamless pipe, specifications include: 304, 321, 316, 316L, 347, 317L and so on, outer diameter in ￠18-￠610 around,
Wall thickness in the 6mm-50mm around (generally selected specifications in the φ159mm above the medium and low pressure conveyor pipeline), the specific application areas are: furnace pipe, material conveyor pipe, heat exchanger tube and so on.
Fluid transport such as water and gas:
Stainless steel pipe and its water transmission equipment, is the world's most advanced basic water purification materials, its anti-corrosion performance is strong, cast iron pipe, carbon steel pipe, plastic pipe, etc., can not be compared with it. Water preparation, storage, transportation, purification, regeneration, seawater desalination and other water industry the best material selection.
The annual demand is about 25000 tons.
Equipment manufacturing and maintenance:
Annual consumption of stainless steel pipe more than 20000 tons. This type of industry mainly uses sanitary or antibacterial grade stainless steel pipe. The use of imported SUS304, 316L production of sanitary seamless pipe, can meet the food, biopharmaceutical field of various media special requirements. Antibacterial stainless steel has the advantages of stainless steel and good antibacterial properties, in the kitchen equipment, food industry workbench and utensils, medical equipment, daily life tableware and hanging towel bracket, refrigerator bracket and other fields of increasing demand.