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FAQ

Can stainless steel be subjected to heat treatment?
In the electrolyte, the potential difference between the two poles must produce an electric current; therefore, the iron in the ferrite loses electrons and becomes the two valence iron ion;
How to solve the stainless steel welding, stainless steel inside and outside surface blackening, yellow
To improve the purity of argon to pure argon, see from the surface of the stainless steel, pure argon argon welding to brightness than the obvious light
Is food contact stainless steel and food grade the same concept?
There are some differences, but in general the food grade will be a bit better, usually when the stainless steel tableware, preferably 304 stainless steel
What kind of steel does stainless steel belong to?
The main alloying element in stainless steel is Cr, and only when the Cr content reaches a certain value can the steel be corrosion resistant. Therefore, stainless steel in general, wCr are above 13%. Stainless steel also contains Ni, Ti, Mn, N, Nb and other elements.
Does the stainless steel plate have 300 material?
200 series stainless steel and 300 series stainless steel, on the surface, even if the experts are also difficult to distinguish. At present, some enterprises are using stainless steel water tank and many users can not identify the authenticity, in the water tank of all or part of the 200 series 304 series as shoddy sales, defrauding the high profits, losses and incalculable risks to the user, the regular brand enterprise market hindered water tank.
What is the difference between edible stainless steel plate and ordinary stainless steel plate?
As low C 18Cr-8Ni- low carbon steel 304, under general conditions, the corrosion resistance of the 304 was similar, but after welding or eliminate stress, excellent anti intergranular corrosion ability; without heat treatment conditions, it can maintain the good corrosion resistance, temperature of -196 DEG ~800 deg. Used in the field of chemical, coal and oil industries requiring high resistance to grain boundary corrosion, outdoor machines, building materials, heat resisting parts, and heat treatment parts
Stainless steel plate and steel welding
Can be welded, stainless steel electrodes must be used, but also more than you use the stainless steel plate material, a higher level of welding rod! Before welding, the steel is to be polished to rust. Sub arc welding can also be used
Classification and application of stainless steel?
According to the composition can be divided into Cr (400 Series), Cr Ni system (300 Series), Cr Mn Ni (200 Series) and the precipitation hardening systems (Series 600). 200 series - chromium nickel manganese austenitic stainless steel 300 series - chromium nickel austenitic stainless steel 301 - ductility, used for molding products. It can also be hardened rapidly by mechanical processing. Good weldability. The abrasion resistance and fatigue strength are better than 304 stainless steel. 302 - 304 with corrosion resistance, due to the relatively high carbon intensity. 303 - by adding a small amount of sulfur and phosphorus, it is easier to cut than 304. 304 - that is, 18/8 stainless steel. GB is 0Cr18Ni9. 309 - better temperature resistance than 304. 316 - after 304, second of the most widely used steel grades are used mainly in the food, pharmaceutical and pharmaceutical industries, and molybdenum is added to obtain a special corrosion resistant structure. Because of its better resistance to chloride corrosion than 304, it is also used as "ship steel". SS316 is usually used in nuclear fuel recovery devices. Grade 18/10 stainless steel usually meets this application level. [1] stainless steel bucket