Alloy 600 is a nickel-chromium alloy designed for use at cryogenic temperatures and up to 2000°F (1093°C). The high nickel content of the alloy provides good resistance to reducing environments, while the chromium content provides resistance to weaker oxidizing conditions. The high nickel content of the alloy provides exceptional resistance to chloride stress corrosion cracking.
A general purpose structural engineering material for use at high temperatures where strength, stability, and durability are important. The alloy also has very good corrosion resistance. When considering this alloy, also investigate Alloy 690, which doubles the chromium content, to improve stress corrosion cracking capabilities.
The alloy is not precipitation hardenable; it is hardened and strengthened only by cold work. In the aeronautical field, alloy 600 is used for a variety of engine and airframe components, which must withstand high temperatures. Examples are lock wire, exhaust liners, and turbine seals
This alloy has good ductility and may be readily formed by all conventional methods Because the alloy is stronger than regular steel it requires more powerful equipment to accomplish forming.