Stainless stee
Stainless stee
Stainless steeIt will not rust, but improper use and maintenance will cause & ldquo; Floating rust& ldquo; Mildew & rdquo; And other undesirable phenomena.
Delivery status: to be delivered after heat treatment and leveling.
.The operators are mainly plumbers and argon arc welders, with the cooperation of other types of work, and the argon arc welder shall have the certificate issued by relevant departments.
409— Cheap model (British and American), usually used as automobile exhaust pipe, is ferritic stainless steel (chromium steel).
.Folding and editing this section of silicon steel strip grain oriented silicon steel strip also known as cold rolled silicon steel strip for telecommunications industry, is a silicon steel strip with grain oriented structure and thickness less than 0.20mm, which is used to manufacture various power transformers, pulse transformers magnetic amplifiers, converters and other iron cores with working frequency above 400Hz.
The inner and outer surfaces of precision stainless steel pipe and thick wall pipe shall be free of cracks, folds, crazing, cracks rolling folds, delamination, which need to be completely removed (unless they are specially used for machining) And after removing the stainless steel pipe wall, the wall thickness and outer diameter shall not exceed the negative deviation. As long as some minor surface defects that do not exceed the allowable negative deviation do not need to be removed.
In order to obtain seamless pipes with smaller size and better quality, cold rolling, cold drawing or a combination of both must be used. Cold rolling is usually carried out on a two high mill. The steel pipe is rolled in an annular pass composed of variable section circular groove and fixed conical plug. Cold drawing is usually carried out on a single chain or double chain cold drawing machine of 0.5 ~ 100t.
The pipes for pipe cutting shall be professionally cut by stainless steel. Rotate it for two circles, then slightly tighten the piece, and then rotate it for two circles until it is cut off. It must not be enough to allow personal strength to be in place at one time to lock the piece to cut off the pipe, otherwise the pipe end will be cut off, and the pipe fittings or rubber rings cannot be inserted; After the pipe above DN65 is cut, the internal and external burrs must be removed with a hand grinder, and an appropriate outer slope opening shall be opened at the same time to avoid damaging the sealing ring.
When water-soluble paper is used to block the ventilation, due to the ventilation from the weld center, the ventilation pipe shall be pulled out quickly at the later sealing link, and the residual argon inside shall be used for protection, we should choose carefully and should not buy them. However, the transmission energy consumption of stainless steel pipe water supply pipe is low, which saves the transmission cost, so the price will not be too expensive.
Highly recommended.There are ba face, 2b face,Thickness of stainless steel pipe, (frosted), HL (wire drawing), 8K face and other surfaces with good quality and brightness.
Cold rolled steel strip shall be delivered in the state of heat treatment (annealing, normalizing and tempering after normalizing), and shall be delivered smoothly.
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!.
Check the clamping forming effect after each clamping, and there shall be no clamping in place or serious depression of pipe clamping. According to visual inspection, the pipe fitting end and the pipe are tightly bonded. The smaller the diameter of the diamond edge of the pipe fitting above DN25 is slightly smaller than the outer diameter of the pipe, ranging from 0.1-2mm. The larger the pipe diameter, the greater the difference.
Latest quotation.400 series & mdash; Ferritic and martensitic stainless steel.
In engineering, the following methods are often used to prevent intergranular corrosion: reduce the amount of carbon in steel so that the amount of carbon in steel is lower than the saturated solubility of austenite in equilibrium, that is, fundamentally solve the problem of precipitation of chromium carbide (cr23c) on the grain boundary. Generally, the requirement of intergranular corrosion resistance can be met when the amount of carbon in steel is reduced to less than 0.03%.
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, medical treatment, food light industry, machinery and instruments,Stainless steel color oil plate, etc. In addition, 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.
.Stainless welded disc (grade I) gb1270-80 stainless steel pipe (grade I)
For the length of welding arc, 2 ~ 4mm is better for ordinary steel welding, and ~ 3mm is better for stainless steel welding. If it is too long,Argon arc welding of thin stainless steel pipe, the protection effect is not good.
Chinese brand cold rolled non oriented silicon steel strip (sheet) means: DW + 100 times of iron loss value (at the frequency of 50Hz, the magnetic induction peak with sinusoidal waveform is the unit weight iron loss value of 5t) + 100 times of thickness value. For example, dw470-50 represents cold-rolled non oriented silicon steel with iron loss value of 7W / kg and thickness of 0.5mm. Now the new model is 50W470.