Monel 400 is a nickel-copper alloy that is hardened by cold working only. Monel 400 has low corrosion rate in flowing seawater, therefore it is widely used in marine applications. Monel 400 also has excellent resistance to stress corrosion cracking in most freshwater. Monel 400 can be used in temperatures up to 1000 F. The alloy has great mechanical properties at subzero temperatures.

Iconel 600 is a standard engineering material and has a great resistance to heat and corrosion. Iconel 600 also has high strength and can be easily formed. Iconel 600 can be hardened and strenghthened only by cold work. Iconel 600 can be used in th heat-treating industry for muffles, furnace componenets, and for heat treating baskets and trays.

Titanium form stable protective surface layers which give them excellent corrosion resistance in many environment, including oxidizing acids and chlorides, in good elevated temperature properties up to about 550 C (1022 F) in some cases. They have low densities, which fall between those of aluminium and iron and give very attractive strength to weight ratios.