Authentic 316L stainless steel pipe with guaranteed material
316 stainless steel pipe is a kind of hollow long round steel, which is widely used in industrial transmission pipelines and mechanical structural components such as petroleum, chemical industry, medical treatment, food, light industry, machinery and instruments, etc. In addition, when the bending and torsional strength are the same, the weight is light, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used in the production of various conventional weapons, barrel, shells, etc. Variety: 316 stainless steel pipe, 316 stainless steel bright pipe, 316 stainless steel decorative pipe, 316 stainless steel capillary, 316 stainless steel welded pipe, 304 stainless steel pipe.
The maximum carbon content of 1316l stainless steel pipe is 0.03, which can be used in applications where annealing cannot be carried out after welding and maximum corrosion resistance is required. 316 stainless steel pipe has a maximum carbon content of 0.03 and can be used in applications where annealing cannot be carried out after welding and maximum corrosion resistance is required.
316 and 317 stainless steels (see the following for the properties of 317 stainless steel) are molybdenum containing stainless steels.
The overall performance of this steel is better than 310 and 304 stainless steel. Under high temperature conditions, when the concentration of sulfuric acid is lower than 15% and higher than 85%, 316 stainless steel has a wide range of applications.
316 stainless steel plate, also known as 00Cr17Ni14Mo2, corrosion resistance:
The corrosion resistance is better than 304 stainless steel and has good corrosion resistance in the production of pulp and paper.
The carbide precipitation resistance of 316 stainless steel is better than that of 304 stainless steel, and the above temperature range can be used.
Stainless steel pipe is a kind of hollow long round steel, which is widely used in industrial transmission pipelines such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instruments and mechanical structural components. In addition, when the bending and torsional strength are the same, the weight is light, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used in the production of various conventional weapons, barrel, shells, etc. This kind of steel pipe can be divided into stainless steel seamless steel pipe and stainless steel welded steel pipe (slotted pipe). According to different manufacturing processes, it can be divided into several basic types: hot rolling, extrusion, cold drawing and cold rolling. According to the section shape, it can be divided into circular pipe and special-shaped pipe. Circular steel pipe is widely used, but there are also some square, rectangular, semicircular, hexagonal, equilateral triangle Octagonal and other special-shaped stainless steel pipes.
Hydraulic test shall be conducted for the steel pipe bearing fluid pressure to test its pressure resistance and quality. It is qualified if there is no leakage, wetting or expansion under the specified pressure. Some steel pipes shall also be subject to crimping test, flaring test and flattening test according to the standard or the requirements of the demander.
304L stainless steel pipe belongs to the international stainless steel marking method. 304L stainless steel pipe -- s30403 (AISI, ASTM)
The Chinese brand corresponding to 304L is 00Cr19Ni10
Characteristics and application: steel with lower carbon content than 0Cr19Ni9 has superior intergranular corrosion resistance. It is a component without heat treatment after welding.
Numbering and representation of steel
① International chemical element symbols and national symbols are used to represent chemical composition, and Arabic letters are used to represent component content:
For example: China, Russia 12CrNi3A
② International stainless steel marking method: use fixed digits to represent steel series or numbers; For example, the United States, Japan, 300 series, 400 series and 200 series; The American Iron and Steel Institute uses three digits to identify various standard grades of malleable stainless steel. Among them, austenitic stainless steel is indicated by numbers of 200 and 300 series, and ferritic and martensitic stainless steel is indicated by numbers of 400 series. Stainless steel, precipitation hardening stainless steel and high alloy with iron content less than 50% usually adopt patent name or trade name.
③ The serial number is composed of Latin letters and order, which only indicates the purpose.
Moreover, 316 stainless steel is also resistant to marine and aggressive industrial atmosphere. 316 stainless steel has good oxidation resistance in intermittent use with heat resistance below 1600 ℃ and continuous use below 700 ℃.
In the range of 800-1575 degrees, it is better not to continuously act on 316 stainless steel, but when 316 stainless steel is continuously used outside this temperature range, the stainless steel has good heat resistance. The carbide precipitation resistance of 316L stainless steel is better than that of 316 stainless steel, and the above temperature range can be used.