用途：石化产业，建材。 321在304钢中添加Ti元素，来防止间晶腐蚀

Application: petrochemical industry, building materials. <br>Add 321 elements 304 Ti steel, to prevent intergranular corrosion, apply the positive 430 to 900 degrees or less, non-magnetic; <br>purposes: without a heat treatment of the product after the car exhaust, heat exchangers, containers, such as welding, due to the addition of Ti elements, making it unsuitable food processing equipment. <br>316 lower, MO adding elements, so he corrosion resistance and atmospheric corrosion resistance and high temperature strength properties particularly good, can be used under severe conditions, suitable for use in 900 degree or less, non-magnetic. <br>Use: Equipment used in sea water, chemicals, dyes, paper, acetic acid, fertilizer and other production equipment, food industry and coastal facilities against intergranular corrosion products with special requirements. <br>309S / 310S these two materials, nickel, and chromium content is relatively high, while increasing the Si content, it has a high temperature and corrosion resistance, wherein the 309S can withstand repeated heating 980, 310S temperature reaches 1200 degrees, continuous use temperature may be 1150 degrees, non-magnetic. <br>Uses: The key parts of the device suitable for high-temperature furnace, drying equipment, furnace materials, aviation, petrochemical and power. <br>200 Series 304 similar inexpensive economy.

Use: Petrochemical industry, building materials.<br> 321 AddTi elements to 304 steel to prevent intercrystalline corrosion, suitable for positive 430 to 900 degrees below, non-magnetic;<br> Use: Automotive exhaust, heat exchanger, container and other products that are not heat-treated after welding, due to the addition of Ti elements, it is not suitable for the production of food processing equipment.<br> 316 low carbon, add MO elements, so its corrosion resistance and resistance to atmospheric corrosion and high temperature strength performance is particularly good, can be used in harsh conditions, suitable for use below 900 degrees, non-magnetic.<br> Application: Equipment used in seawater, chemicals, dyes, papermaking, acetic acid, fertilizer and other production equipment, food industry and coastal facilities, anti-intercrystalline corrosion has special requirements of products.<br> 309S/310S these two materials, nickel and chromium content is relatively high, while increasing the content of Si, so that it has high temperature and corrosion resistance, of which 309S can withstand 980 or less repeated heating, 310S use temperature of 1200 degrees, continuous use temperature can be 1150 degrees, non-magnetic.<br> Application: Application of high temperature furnace equipment, drying equipment and other key parts, furnace materials, aviation, petrochemical, electricity, etc.<br> The 200 series is similar to the 304 cheap economy.

Uses: petrochemical industry, building materials.<br>321 add Ti element to 304 steel to prevent intergranular corrosion, suitable for normal 430 to 900 degrees, non-magnetic;<br>Application: the products without heat treatment after welding, such as automobile exhaust, heat exchanger and container, are not suitable for food processing equipment due to the addition of Ti element.<br>316 low carbon, add Mo element, so its corrosion resistance, atmospheric corrosion resistance and high temperature strength performance are particularly good, can be used in harsh conditions, suitable for use below 900 degrees, non-magnetic.<br>Uses: equipment used in seawater, chemical industry, dyestuff, papermaking, acetic acid, fertilizer and other production equipment, food industry and coastal facilities, products with special requirements for resistance to intergranular corrosion.<br>The content of nickel and chromium in 309S / 310S is relatively high. Meanwhile, the content of Si is increased to make it have high temperature resistance and corrosion resistance. 309S can withstand repeated heating below 980, the service temperature of 310S can reach 1200 ℃, the continuous service temperature can be 1150 ℃, non-magnetic.<br>Application: suitable for high temperature electric furnace equipment, drying equipment and other key parts, furnace materials, aviation, petrochemical, electric power, etc.<br>The 200 series is similar to the 304 cheap economy.<br>