What is the melting point of stainless steel? Stainless Steels

As they are an alloy of several different metals, the melting point of stainless steel happens over a temperature range rather than at a specific temperature. Also, the addition of alloying elements to iron act to reduce the melting temperature range. Pure iron has a melting point of 1535degC, but for Alloy 316L it is 1375-1400degC, 1385-1445degC for duplex Alloy 2205 (1.4462, UNS S32205, UNS S31803, F51, F60, SAF2205) and 1410-1460degC for super duplex stainless steels such as Ferralium 255 (1.4507, UNS S32550), UNS S32750 (1.4410, F53, SAF2507) and UNS S32760 (1.4501, F55, Zeron 100).

The melting point of stainless steel is normally only of consideration to the producers, who need to consider process temperatures for melting, casting, forging and rolling, plus subsequent heat treatment such as solution annealing. When it comes to their real-world applications, the maximum temperature of use may be limited by their reduction in corrosion and oxidation resistance, retention of strength and avoiding the formation of deleterious intermetallic phases if exposed for extended periods.

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