Kubota has developed the KHR MA7 as economic alloy using microalloying technology which can reduce the Ni content with the same creep rupture strength as microalloyed KHR35CT (25Cr-35Ni-Nb,Ti). It is primarily used in reformer furnaces where its high strength can be used to reduce wall thickness and tube weight while increasing catalyst capacity. The alloy is suitable for long term service at temperatures up to 1050C (1922F).

Features of KHR MA7

1. Creep rupture strength of KHR MA7 is the same as KHR35CT
2. Has metallurgical stability even after long service
3. Has metallurgical stability even after long service