35.45

Such kind of alloys exhibit superior resistance to carburization and oxidation compared to those based on a 25% chromium and 35% nickel composition, particularly in service conditions reaching temperatures up to 1150°C. However, it's worth noting a marginal reduction in creep strength. These alloys are well-suited for critical applications in environments such as pyrolysis coils and reformer tubes within the petrochemical industry. The material's ductility presents a consideration for thicker sections, where preheating may prove beneficial. Generally, standard operating conditions do not necessitate post-weld heat treatment (PWHT). This nuanced approach ensures optimal performance and longevity in applications exposed to high temperatures and aggressive chemical environments.

High carbon 35Cr-45Ni-1Nb to match heat-resisting castings, which are often micro-alloyed with Ti and Zr.

In the as-welded condition the multi-pass weld metal microstructure consists of austenite with primary eutectic and secondary precipitated carbides.

PROPRIETARY: Paralloy H46M (Doncasters Paralloy), Manaurite® XT, XTM (Manoir Industries), Centralloy® ET45 Micro (Schmidt + Clemens), Lloyds T80, Lloyds T75MA (LBA), E3545Nb-MA (Engemasa).