Generally speaking,stainless steel material is a kind of not easily rust stainless steel, stainless steel is actually a part of, not rust, and acid resistance (corrosion resistance). Stainless steel stainless steel and corrosion resistance is on the surface of chromium rich oxide film (film) is formed. This stainless steel and corrosion resistance is relative. Tests show that the steel in air, water and other medium and weak acid oxidizing medium, the corrosion resistance increased with the increase of Cr content in steel, when the chromium content reaches a certain percentage, the steel corrosion resistance mutation from rust to rust, corrosion and corrosion resistance to never.
Stainless steel material include stainless steel strip, stainless steel bar, stainless steel plate, stainless steel wire, stainless steel pipe, stainless steel pipe,etc.
The grades of the stainless steel include: SUS310S、316L、316、304、304L、309、305、314、303、321、301、202、201etc.;
In many industrial applications, stainless steel can provide satisfactory corrosion resistance. According to the use of the experience, in addition to mechanical failure, the corrosion of stainless steel is mainly manifested in a serious form of corrosion of stainless steel is local corrosion (i.e. stress corrosion cracking, pitting corrosion, intergranular corrosion and corrosion fatigue cracks). These local corrosion corrosion caused by failures almost accounted for more than half of failures. In fact, many failure accidents can be avoided through reasonable selection.
There are 100 kinds of stainless steel, features and functions are not the same. The general decoration, landscape sculpture, the selection of austenitic stainless steel austenitic stainless steel. Because of low thermal conductivity, use it as a kettle, frying pan, pot is not appropriate, will use a lot of energy, but also prolong the cooking time. Using a ferrite made of stainless steel pan, cooker that not only has excellent corrosion resistance, and the thermal conductivity of nearly half higher than the austenitic stainless steel. The inner barrel of washing machine, water heater, vegetable washing basin, as long as the water contact and utensils should be used in ferritic stainless steel. Stainless steel cutter people complain not fast, this is because the wrong selection of stainless steel austenitic stainless steel. Can’t be hardened, not suitable for cutting tools, cutting tool. The martensitic stainless steel made by heat treatment, such as quenching, tempering hardness change of stainless steel.