Stainless seamless square steel pipe

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Product Description:

Square Stainless seamless Steel Pipe

Product


Stainless Steel Square Pipe/ Stainless Steel Seamless Pipe

Standard


ASTM A213,ASTM A312, ASTM A269,ASTM A789, JIS G3456

JIS G3459, JIS G3463, JIS G3448 EN 10216


Material


200 Series


300 Series


201,202


301,304,304L,309S,310S,316,316L,317L,321,347


Thickness


0.2mm-80mm


Width


10*10mm-300*300mm


Length


1m,3m,5.8m,6m or as demand


Treatment


Hot Rolled,Cold Drawn


Application


Stainless Steel Square Pipe is widely used in Building Constructure,Machine Equipment,

Water Piping,Decoration industry,Electrical and Chemical Industry



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Q:Stainless steel pipe 301 material and 304 material what is the difference?
301 stainless steel shows obvious work hardening during deformation and is used in various occasions requiring higher strength. 301, compared with 304 steel material, C content is much, Cr and Ni content is little, cold processing tensile strength and hardness increased, without magnetism, but after cold processing has magnetism.
Q:How can the inner walls of stainless steel tubes be polished?
Electropolishing is thrown to the workpiece as anode, insoluble metal poles at the same time as the cathode, immersed into electrolytic cell, with the direct current produced anodic dissolution selectively, so as to achieve the surface brightness increasing effect. Specific can be used to search "what is electrolytic polishing" can understand!
Q:The difference between galvanized steel pipe and stainless steel pipe
Galvanized pipes are generally used for fire fighting and circulating water supply (non living water supply)
Q:Stainless steel pipe specification 25*2 what does it mean?
Stainless steel pipe specification 25*2, indicating stainless steel pipe, the outer diameter of 25mm, wall thickness of 2mm.
Q:304 stainless steel will rust it?
Stainless steel has the ability to resist atmospheric oxidation - that is, stainless steel, and also has the ability to corrode in medium containing acids, alkalis, and salts - that is, corrosion resistance. But its corrosion resistance is changed with the chemical composition, the mutual state, the condition of use and the type of environmental medium. Such as the 304 steel pipe, in the dry clean atmosphere, have absolutely excellent anti-corrosion ability, but it will be moved to the beach area, with large amounts of sea salt fog, will rust quickly; and the good performance of 316 steel pipe. Therefore, it is not any kind of stainless steel, capable of corrosion and rust in any environment.
Q:304 stainless steel, welded to seamless difference in what place?
The strength of the pipeline depends on the alloy composition, which contains the same alloy and the same heat treatment of stainless steel seamless pipe and welded stainless steel pipes essentially consistent strength.After the tensile test and three-dimensional vibration test, welded stainless steel pipes tearing almost all occurred in the region far away from the welding point or local heating. This is because there is little impurity in the weld and the nitrogen content is slightly higher, so the strength of the welded joint is better than that of other parts. However, ASME (American Society of Mechanical Engineers) that welded stainless steel pipes can withstand 85% of the allowable pressure, which is mainly due to improved welding equipment data collection prior to today.The provisions of ASME 100% completely under permit pressure through ultrasonic testing of welded stainless steel pipe. Similarly, Europe and Asia also stipulates that can ensure the quality of welding performance by eddy current testing of welded stainless steel tube for eddy current testing is subject to legal procedures and licensed institutions. TRENT's eddy current test was approved by the Swedish power division. ASME believes the current loss is relatively small, high-quality performance based on the seamed tube.
Q:What is the difference between stainless steel tube 304L and 304N?
The lower carbon content minimizes the precipitation of carbides in the heat affected zone near the weld, while the precipitation of the carbides may lead to intergranular corrosion in stainless steels in certain environments.
Q:304 stainless steel tube with the diameter of 25*2-3 is what mean?
This is according to the "water drawing standards" (GBT50106-2001) in 2.4.2-2 seamless steel pipe, welded steel pipe (straight or spiral seam), brass, stainless steel pipe, pipe diameter should be D diameter * thickness representation (such as D108 * 4 and D159 * 4.5); and the provisions of the habit of acting D with seamless pipe diameter.
Q:How can galvanized steel pipe to be connected with stainless steel pipe?
Welding flanges respectively, with flange connection, but galvanized pipe according to specifications, dynamic welding after two times galvanized,
Q:What is the welding of stainless steel?
If batch welding, it is recommended to use laser welding, welding heat affected area is small, weld appearance, speed, more suitable for thin plate,

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