Q:Can stainless steel water pipes be cooled and bent?
They are lighter in bending and torsional strength, and therefore are widely used in the manufacture of mechanical parts and engineering structures. It is also used to produce all kinds of conventional weapons, guns, shells and so on.
Q:SA-179 what kind of material is steel pipe?
Seamless steel pipe having a hollow cross section, used as a conduit for conveying fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials.
Q:How can stainless steel and copper pipe be welded?
Used to burn the brass pipe welding copper tube of copper which is often used for the installation and maintenance of brass stainless steel is rarely used because there are few people who will burn
Q:Stainless steel and stainless steel pipe inside and outside polishing off, what is the difference?
The main difference between these materials is that the chemical composition is different. The corrosion resistance of 316L is stronger than that of 304 and 304L, and that of L indicates lower carbon content and stronger flexibility. Choose the key depends on the things inside, corrosion is not big, how to use the environment, there are high pressure requirements are not high.
Q:Stainless steel pipes can not be less than the amount of chromium
304 stainless steel tube as 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. Stainless steel is a very thin layer formed on the surface and the stability of the fine solid chromium rich oxide film (protective film), to prevent the infiltration of oxygen atoms, to oxidation, and the ability to obtain anti-corrosion. Once there are some reasons, this film was constantly destroyed, air or liquid oxygen atoms will continue to infiltrate or metal atoms of iron to keep out from the loose formation of iron oxide, the metal surface will be continuously corroded. Many of the surface damage form, more common in daily life are as follows: 1. stainless steel surface deposited dust or heterogeneous metal particles containing other metal elements of the attachment, in the humid air, condensed water and adhesion between the stainless steel, the two together into a micro battery, cause the electrochemical reaction, the film has been destroyed, called electrochemical corrosion. 2. stainless steel surface adhesion of organic juice (such as vegetables, soup, sputum), oxygen in the water under the circumstances, a long time, organic acid, organic acid on the surface of metal corrosion. 3., stainless steel surface adhesion contains acid, alkali and salt substances (such as decoration wall caustic soda, lime water splash), causing local corrosion. 4., in polluted air (such as containing large amounts of sulfide, carbon dioxide and nitrogen oxides in the atmosphere), in case of condensation water, the formation of sulfuric acid, nitric acid, acetic acid liquid point, causing chemical corrosion.
Q:How about stainless steel 2520 and 316?
Their nickel content is different. 2520 contains about 20 nickel, 316 contains about 13 nickel, and contains 2 molybdenum.
Q:What wire is used for welding of 316 stainless steel line?
Apply A102 (E308-16) or A202 (E316-16) welding rodAttention should be summarized as follows: welding rod should be dry, low current, fast welding speed, interlayer temperature of about 60 degrees, intermittent welding, in order to avoid intergranular corrosion, immediately after welding water cooling.
Q:Ask experts, 304 stainless steel pipe why rust?
Stainless steel is not easy to rust and has a lot to do with the composition of stainless steel. In addition to iron, stainless steel contains chromium, nickel, aluminum, silicon and so on. General stainless steel chromium content is generally not less than 12%, high even up to 18%. Steel added elements such as chromium, can change the performance of the steel, such as the molecular structure of steel more uniform on the surface of the steel is more easily to form a layer of dense oxide protective film, thereby greatly improving the ability of corrosion-resistant stainless steel. Therefore, stainless steel can resist fire, water, acid, alkali and various solutions to its corrosion, not rust. The scientists found that the internal structure of the steel is more uniform, various components more closely linked to the corrosion of the more difficult the invasion, also attached to the surface with a layer of oxide film, like iron and steel to wear armor, was not naturally easy to rust.
Q:Why can't stainless steel tubes be cut with acetylene?
Is mainly from Huoxian, heating flame is mainly open before cutting and cutting plate preheating on the auxiliary heating.Stainless steel, chromium containing at least 13% or more, it hinders the exothermic oxidation and melting phenomenon, which is higher than that of iron chromium to 316 degrees, 1855 degrees, so can not use stainless steel oxygen - acetylene flame cutting.
Q:Why is stainless steel magnetic?
Many customers often think that the magnet adsorption of stainless steel, to verify its merits and authenticity, and do not smoke without magnetism, that is good, genuine; smokers are magnetic, is considered a fake fake. In fact, this is a very one-sided, not practical, and the wrong way to identify, I hope the following content for your help!