How to distinguish between 302 stainless steel screws and 304 stainless steel screws?
When we know the production of stainless steel screws, stainless steel screws, there are many different kinds of material, so in front of many stainless steel material, we have to test whether 304 stainless steel screwsWhat about the material?! I believe that many companies, purchasing personnel or technical engineers have many ways to test. But some people still don't know how to test the stainless steel screws. Is it made of 304 material?. Especially some screw factories
302 stainless steel and 304 stainless steel are suitable for food processing, storage and transportation. It has good processability and weldability. Plate type heat exchanger, corrugated pipe, household appliances (1, 2 kinds of tableware, kitchen cabinet, indoor pipeline, water heater, boiler, bath), auto parts (windshield wiper, muffler, mold), medical appliances, building materials, chemical, food industry, agriculture, marine parts, millet mobile phone etc.. 304 stainless steel is a nationally recognized food grade stainless steel.
[difference] 302 stainless steel and 304 stainless steel 304 stainless steel is one of the most widely used kind of chromium - nickel stainless steel, as a widely used steel, corrosion resistance, good heat resistance, low temperature strength and mechanical properties; punching, bending and other thermal processing, non hardening heat treatment (using temperature -196 to 800 DEG C). 302 stainless steel the carbon is relatively high (302 C = 0.15%; 304 C is less than or equal to 0.08%) and better strength. The other indicators are basically the same as those of 304.
