Alloy development has resulted in a material – RA 253 MA® – with the price of 310 stainless and the high-temperature properties of the higher-nickel Inconel® 600.
RA 253 MA® is a versatile alloy that can be used in a range of thermal applications for equipment construction. The drive for the development of this alloy was the rapid rise in nickel prices. With low Cr and low Ni, RA 253 MA is a good, low-cost alternative to other more-expensive nickel-based materials. With the advent of the microalloying control, this alloy is comparably priced with 310 stainless steel, but it delivers high strength properties comparable to the higher nickel Inconel® 600-series materials.