Extensive Usages of Stainless Steel

- Jul 11, 2018 -

Characteristics and Uses of the main Stainless Steel Types

304: As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, good hot workability such as stamping and bending, no heat treatment hardening, no magnetism, and the temperature is 193 degrees to 800 degrees.

Uses: tableware, kitchen utensils, water heaters, boilers, auto parts, medical equipment, food machinery, storage wine setting, pressure vessels (chemical machinery, chemical equipment).


304L is a low-carbon 304 steel. Under normal conditions, the corrosion resistance is similar to that of 304. However, after welding and after stress relief, it is resistant to intergranular corrosion and can be maintained well without heat treatment. Corrosion resistance, generally used at 400 degrees.

321, which adds Ti element to 304 steel to prevent intergranular corrosion. It is suitable for 430 to 900 degrees or less and is non-magnetic.

Uses: Automotive exhaust, heat exchangers, containers, etc., which are not heat treated after welding, are not suitable for making food processing equipment with Ti.

316 ,which has low carbon and MO element, therefore it has great corrosion resistance and atmospheric corrosion resistance and high temperature strength performance. And it can be used under harsh conditions, even below 900 degrees, non-magnetic.

Uses: Equipment used in seawater, chemicals, dyes, paper, acetic acid, fertilizer and other production equipment, food industry and coastal facilities, products with special requirements against intergranular corrosion.

309S/310S,which have higher nickel and chromium content. Increase the Si quantity can make it resistant to high temperature and corrosion. 309S can withstand repeated heating below 980, 310S use temperature reached 1200 degrees, continuous use The temperature can be 1150 degrees and is non-magnetic.

Uses: Suitable for high temperature electric furnace equipment, drying equipment and other key parts, furnace materials, aviation, petrochemical, electricity and so on. 


 Contact: Una Chen

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