STAINLESS STEEL - POSCO GRADES

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  • 301 : 17Cr - 7Ni / 301L : 17Cr - 7Ni - LCIt has less contents of Cr and Ni compared to that of 304 and is possible to make it possess high strength by further cooling process. And it is mainly used for springs and the train interior and exterior panels.

  • 304 : 18Cr - 8NiAs the kind of steel most widely used, it has the good corrosion resistance, thermal resistance and mechanical properties and is used for home appliances, construction materials and kitchenware, etc.

  • 304L : 18Cr - 9Ni - LCSince it has a low content of carbon compared to that of 304, it has superior inter-granular corrosion resistance and is used for industrial devices, chemical equipments and LNG tanks, etc.

  • 304J1 : 17Cr - 8Ni - 2CuIt has superior formability due to its added Cu content and is used for the materials for deep drawing, such as kitchen sinks and thermos bottles, etc.

  • 316 : 18Cr - 12Ni - 2MoIt has superior corrosion resistance and pitting resistance due to the added Mo and increased Ni contents and the excellent hightemperature strength, so it is widely used for water pipelines, equipment for manufacturing chemicals and coastal area facilities, etc.

  • 316L : 18Cr - 12Ni - 2Mo - LC316L has superior inter-granular corrosion resistance due to its low content of carbon compared to 316 steel and it is used under the environments that there are lots of corrosive elements, such as salinity and poisonous gas, etc.

  • 316LN : 18Cr - 11Ni - 2Mo - 0.13N(Plate)As a kind of steel with the strength that is enhanced by adding nitrogen into 316L steel, it is used for chemical equipments and storage tanks, etc.

  • 321 : 18Cr - 9Ni - 0.3TiAs a kind of steel with the inter-granular corrosion resistance enhanced by adding Ti into 304 steel, it is used for heat exchangers and boiler covers, etc.

  • XM15J1 : 19Cr - 13Ni - 3.5Si(Cold-rolled)As a kind of steel with high-temperature salinity corrosion resistance and superior oxidation resistance, it is used for the components of cars, ships, machines, heaters and incinerators, etc.

  • 310S : 22Cr - 20NiAs a kind of steel with superior high-temperature oxidation resistance and high-temperature strength by increasing the Cr and Ni contents, it is used for applications requiring heat-resistance, such as ships, machinery and heat exchangers, etc

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