1. What is 304 stainless steel plate?
Stainless steel is another name for stainless and acid-resistant steel, and it is a kind of stainless steel. 304 stainless steel plate is one of the most common stainless steel materials. Density: 7.93g/cm3; Temperature resistance of 800 degrees, easy processing, strong toughness, widely used in industry, home improvement and medical equipment industry.
1, physical properties
Tensile strength ≥ 520 MPa; Conditional yield strength ≥ 205 MPa; Area shrinkage is greater than or equal to 60%; Specific heat capacity 0.5kj * kg expansion coefficient18.4; Resistivity 0.73; Longitudinal elastic modulus:193; Thermal conductivity 21.5; Hardness ≤ 187hb, ≤90hrb, ≤ 200hv; Elongation ≥40%.
Use of 2304 stainless steel plate
First of all, 304 stainless steel plate is suitable for food processing, transportation and storage. Its good plasticity can be used in plate heat exchangers, tableware, cabinets and water heaters; Then, auto parts, water heaters, building materials and food industries are also involved. It can be said that 304 stainless steel plate is the most widely used stainless steel plate.
Second, how to distinguish between 304 and 20 1 stainless steel plates?
1, 304 stainless steel plate and 20 1 stainless steel plate, from a distance, the gloss and matt color are the same. But we can identify it in other ways. If you look at it directly with the naked eye at close range, the color of 304 is saturated and shiny, and the feel is very smooth; And 20 1, it will be slightly dark, with low color saturation, and it will be a little rough with your hands. In the water immersion experiment, the watermark on the surface of 304 is very easy to remove, while the processing of 20 1 is very troublesome.
2. Distinguish by grinder: When grinding 304 stainless steel plate, the sparks are short and few; On the other hand, 20 1 has many sparks. When you distinguish in this way, keep the same polishing strength.
3. Distinguishing with stainless steel pickling paste: Apply the washing paste on 304 and 20 1 and observe its color change; If the color is white or does not change, it is 304; Conversely, blackening is 20 1.