3.0mm～450.0mm.
Specifications Ф3.0mm～450.0mm, there are stainless steel thin tube, square tube, thick-walled tube, seamless tube, seamed tube, industrial tube, liquid transportation tube, the surface of the surface has a glossy, matte surface can be customized according to the requirements of customers. Material: SUS310S, SUS316, 316L, 304, 304L, 321, 303, 303CU, 301, 202, 201 and so on.
Stainless steel pipe inner diameter of 6.0mm or more, wall thickness of 13mm below the annealed stainless steel pipe, you can use W-B75 type Wechsler hardness tester, which test is very fast, easy, suitable for stainless steel pipe to do a quick and non-destructive qualification test. Stainless steel tube inner diameter greater than 30mm, wall thickness greater than 1.2mm stainless steel tube, using Rockwell hardness tester, test HRB, HRC hardness.
Stainless steel tube inner diameter greater than 30mm, wall thickness less than 1.2mm stainless steel tube, using surface Rockwell hardness tester, test HRT or HRN hardness. Inner diameter less than 0mm, greater than 4.8mm stainless steel tube, using pipe-specific Rockwell hardness tester, test HR15T hardness. When the inner diameter of stainless steel pipe is greater than 26mm, you can also use Rockwell or surface Rockwell hardness tester to test the hardness of the inner wall of the pipe.
Extended information
Application requirements
1, the automotive industry
The main stainless steel used in the exhaust system, accounting for more than 1/2 of the total automotive stainless steel consumption, 80% of ferritic stainless steel. Exhaust gas produced by the automobile engine through the exhaust gas intake pipe, front pipe, hose, converter, center pipe and finally out of the muffler.
Commonly used steel grades for exhaust system are 409L, 436L, etc.. Automobile muffler mainly use stainless steel welded pipe. It is estimated that the stainless steel pipe used in automobiles accounts for about 1.5% of the entire downstream use of stainless steel pipe, and the use of stainless steel seamless pipe and welded pipe ratio of about 2:1.
2, the petrochemical industry, including the fertilizer industry
The demand for stainless steel pipe is extremely high, and the industry mainly uses stainless steel seamless pipe, specifications include: 304, 321, 316, 316L, 347, 317L, etc., the outer diameter of ￠18-￠610 or so, wall thickness of 6mm-50mm or so (generally used in Φ159mm or more specifications in the low-pressure pipeline), the specific areas of application are: furnace pipe, material handling pipe, heat exchanger pipe and so on.
3, water and gas and other fluid transportation
Stainless steel piping and its water conveyance equipment, is the world's most advanced basic water purification materials, its anti-corrosion properties, cast iron pipe, carbon steel pipe, plastic pipe, etc., can not be compared with it. Water preparation, storage, transportation, purification, regeneration, desalination and other water industry best choice material. The annual demand is about 25,000 tons.
4, equipment manufacturing and maintenance
Annual consumption of stainless steel pipe more than 20000 tons. This type of industry mainly uses sanitary or antimicrobial grade stainless steel tube. The sanitary seamless tubes made of imported SUS304 and 316L can meet the special requirements of various media in the field of food and biopharmaceuticals.
Antibacterial stainless steel with stainless steel advantages and good antibacterial properties, in the kitchen equipment, food industry benches and utensils, medical equipment, daily life of tableware and hanging towel brackets, refrigerated cabinets, such as brackets, the demand is increasing.
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