Stainless stee
Stainless stee
Stainless stee2020303043310s, 331632404420, 430 and other materials.
The existence of medium temperature brittle zone requires strict heat treatment and welding process system to avoid the appearance of harmful phase and damage the performance.
.The bright nickel layer on the stainless steel pipe is a silver white metal with slight yellow light. Its hardness is higher than that of copper zinc, tin, cadmium, gold and silver, but lower than that of chromium and rhodium. Bright nickel has high chemical stability in air and good stability to alkali. Using Brightener on stainless steel pipe, bright nickel can be directly plated without polishing, so as to improve the hardness, wear resistance and leveling of the surface, make the appearance of stainless steel pipe consistent with other nickel plated parts, and avoid the corrosion of potential difference between stainless steel pipe and other bright nickel. After using bright nickel solution for a period of time, due to the of brightener
After the installation of stainless steel water pipe cleaning pipeline, it is recommended to use 3% potassium permanganate for disinfection. It is strictly prohibited to use bleaching water for disinfection, and clean it with clean water after disinfection. If it is not put into use for a short time, compressed air must be used to blow out the residual water in the pipe, so as to prevent the corrosion reaction between oxygen free in the pipe and other media.
.Fabrication of stainless steel pipe
Stainless welded disc (grade I) gb1270-80 stainless steel pipe (grade I)
With the development of social economy, the application of stainless steel pipe has been more and more popular. It will bring new changes in various fields.
After the stainless steel pipe is completed, moved and moved for a long distance. If there is no bag, there will be scratches and scratches on the surface, which will affect the appearance of the surface.
Model 309 & mdash; It has better temperature resistance.
The best choice is also frequently launched in the market. If you want to buy a stainless steel water supply pipe with quality assurance, how should you choose?
Installation materials.National standard thickness of stainless steel pipe when American standard stainless steel pipe is used, there are different tolerances for seamless hot expanded pipe, seamless cold rolled pipe and welded pipe according to different dimensions. For example, for hot expanded pipe with diameter less than 100mm, when the thickness is 4mm and less the upper limit tolerance of thickness is 40%; If the standard of stainless steel pipe is Chinese standard, according to the tolerance of stainless steel pipe for fluid transportation in gbt14976, the tolerance here is the tolerance when ordering according to the nominal thickness; According to the manufacturing method, the thickness standard of stainless steel pipe is divided into hot rolling and cold rolling, including thin plate with thickness of 0.5-4mm and thick plate with thickness of 5-35mm. The specific gravity of stainless steel pipe is 9. The weight = specific gravity of length and width of thickness, and the weight of plate with thickness of stainless steel pipe of 1mm = 11 m 2 m 93 = 86 kg 2 m (length) 1 m (width) 0.01 M (thickness) 93 (specific gravity) = 0.1586 tons (weight)
L stainless steel pipe is a kind of hollow long round steel, which is mainly used for industrial transmission pipelines and mechanical structural components such as petroleum, chemical industry, food, light industry, machinery and instruments, etc. In addition,36 stainless steel plate, when the bending and torsional strength are the same, the weight is light, so it is also widely used in all kinds of manufacturing mechanical parts and engineering structures.
Oxygen plus gas flame can not cut stainless steel plate because stainless steel is not easy to be oxidized.
In order to prevent water from serious pollution during storage and transportation, the water industry now generally uses stainless steel pipes to store and transport water. Because stainless steel pipes have anti rust, high temperature and high pressure resistance and good sanitary performance stainless steel pipes are slowly used in the industrial field!.
Latest quotation.5: stainless steel wire: it can also be called stainless steel wire, coil rod and coil yuan, but it is different from stainless steel wire rope. Wire rod mainly includes spring wire and screw wire, professional stainless steel plate, stainless steel coil, stainless steel belt, stainless steel pipe and other special products. It is a 20-year-old brand with advantages in price and guaranteed quality. As the name suggests: screw wire is mainly used to make screws, The spring wire is used to make springs or other hardware products required. Others, such as bright wire, hydrogen withdrawal wire, electrolytic wire,254SMO stainless steel pipe, axle hairpin wire, etc. the tensile strength is 1500-2000. The hardness of spring wire is as follows: fully soft | 1 / 4 hard | semi hard | 3 / 4 hard | fully hard | extra hard. Steel wire rope gauge: 7 * 1,6 * 12,7 * 19, which is higher than that of wires etc., rods and tubes of the same material, 304 stainless steel is a kind of high alloy steel that can corrode in air or chemical corrosion medium. Stainless steel has beautiful surface and good corrosion resistance. It does not have to go through surface treatment such as color plating, but gives full play to the inherent surface properties of stainless steel. It is used in many aspects of steel, which is usually called stainless steel. Representative properties include 13 chromium steel, 18-8 chromium nickel steel and other high alloy steels.
Only soluble paper or the combination of soluble paper and blocking plate is used for blocking ventilation protection (i.e. solid core welding wire + TIG + water-soluble paper)
416— The addition of sulfur improves the processability of the material.
.L stainless steel pipe is also called 00Cr17Ni14Mo2 stainless steel pipe. 00Cr17Ni14Mo2 is an ultra-low carbon steel of 0Cr17Ni12Mo2. 00Cr17Ni14Mo2 has better intergranular corrosion resistance than 0cr17ni14mo2. It is usually used to manufacture industrial equipment such as chemical industry, such as containers, pipelines and structural parts.
SPHC—& mdash; In the first place, s is the abbreviation of steel, P is the abbreviation of plate,304 one stainless steel plate, h is the abbreviation of hot heat, and C is the abbreviation of commercial. It generally represents hot-rolled steel plate and strip.
According to different metallographic structure of stainless steel, it is divided into semi Ferritic and semi martensitic stainless steel pipe, martensitic stainless steel pipe, austenitic ferritic stainless steel pipe, etc.