Chromium-iron alloys oxidation, elevated temperatures

This service test method covers the determination of the resistance to oxidation of nickel-chromium-iron electrical heating alloys at elevated temperatures under intermittent heating using a constant temperature cycle test. This test is used for internal comparative purposes only. 

This is a nickel-chromium-iron alloy with the addition of silicon. Refer to Table 11.1 for its chemical composition. Type 330 stainless has good strength at elevated temperatures, good thermal stability, and excellent resistance to carburizing and oxidizing atmospheres. It is weldable and machinable. This alloy has been used in low-stress applications to temperatures as high as 2250°F (1230°C) and has moderate creep to 1600°F (870°C). 

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