Distinguish 304 and 201 Stainless Steel Quickly

 1. Drop potion on the surface of stainless steel, and see the change of potion color to determine whether the material is 304 or 201. This method is very convenient, but not scientific.


2. Checking the spark when grinding the stainless steel plate. The sparks of 304 material form long sparks, while the sparks of 201 material are scattered.


3. Use magnets to absorb the stainless steel. 201 material is magnetic, while 304 material is non-magnetic, but 304 material may be magnetic after production, so we need to take at least two methods to identify .


I hope that these methods may helpful to everyone in the judgment of 304 and 201 stainless steel. HCADTO Stainless Steel Co., Ltd. the Stainless Steel Division of ADTO GROUP, specializes in manufacturing stainless steel pipes, stainless steel angle bar, flat bar, round bar, square bar, hexagonal bar and channel bar in various grades and sizes. Our years of production experience and manufacturing facilities will ensure the good quality and competitive duration of our products.

评论

发表评论

此博客中的热门博文

How to Distinguish Colored Stainless Steel Plate

图片
Colored stainless steel plates   can be used in hotels, guesthouses, entertainment venues, high-end brand stores, elevator panel, etc., and their decorative effect and corrosion resistance are better than ordinary stainless steel. Generally, stainless steel color plates are distinguished by three aspects: 1. Surface treatment includes wire drawing, mirror surface, sandblasting, chaotic grain, compound hair grain, cross grain, etc., 2. Surface colors include gold, rose gold, champagne gold, black titanium, brown gold, etc. 3. No fingerprints are generally divided into glossy and matte. With the advancement of technology,  Changsha HCADTO Stainless Steel Co., Ltd.  special materials such as stainless steel colorful plates, colored water corrugated plates, and colored stainless steel embossed plates are gradually knowed by people.  specializes in the production of stainless steel colored plates with various patterns, and can also be customized according to customer requ...
阅读全文

How to Distinguish 201 and 304 Stainless Steel Plate

图片
1.   304 stainless steel plate   is shiny and has a good gloss with smooth touching, while 201 stainless steel plate is dark and has no gloss with rough uneven touching. In addition, touching both of them with wet hands, the water-stained on the 304 stainless plate are easier to erase than 201 stainless plate. 2. Using a grinder to install the grinding wheel to grind and polish the two plates gently. When grinding, the sparks of the 201 stainless plate are longer, thicker,  in the contrary, the sparks of the 304 stainless plate are shorter, thinner, and less. 3. Apply stainless steel pickling paste to two stainless steel plates respectively. If the color is dark, it is 201 stainless plate, and if it is white or does not change color, it is 304 stainless steel plate. With the advancement of technology,  Changsha HCADTO Stainless Steel Co., Ltd.  special materials such as stainless steel colorful plates, colored water corrugated plates, and colored stainless steel...
阅读全文

Rusted Stainless Steel Pipe is Quality Problem

图片
When brown rust spots appeared on the surface of   304 stainless steel pipes , the customers may doubt that stainless steel would never rust, it must have quality problem. In fact, this is one-sided misconception about stainless steel. Stainless steel also can get rusty under certain conditions.  Stainless steel has the ability to resist atmospheric oxidation, also has the ability to resist corrosion in media containing acids, alkalis, and salts. But the resistance to corrosion is different with the chemical composition, working conditions and surrounding medium type and change. For example, 304 steel pipes has absolute good resistant corrosion in the dry cleansing air, but not in sea fog. Therefore, not any kind of stainless steel can resist corrosion and rust at any time. The are some condition that we shoule take care for it may cause damage to the protective film on the stainless steel surface and lead to corrosion.  1. Cleaning and scrubbing stainless steel pipe freq...
阅读全文