Incoloy903 Material introduction

Incoloy903 is Fe-Ni-Co Base precipitation hardening deformation superalloy is characterized by low coefficient of thermal expansion and almost constant modulus of elasticity in a wide temperature range, and the service temperature is below 650 ℃. The alloy has high strength, good cold and thermal fatigue resistance, weldability and high pressure hydrogen embrittlement resistance. The alloy is an ideal material to realize engine clearance control technology, which can improve engine efficiency and reduce fuel consumption. It is suitable for manufacturing turbine case, seal ring and other parts of aviation and aerospace engines. The main products are hot-rolled and forged bars, ring blanks and ring pieces。

Incoloy903 chemical composition

Incoloy903 Physical and mechanical properties

Incoloy903 Heat treatment system

The standard heat treatment system for hot rolled and forged bars and rings is：

845℃±10℃×1h/AC+720℃±10℃×8h/FC(55℃/h)→620℃±10℃×8h/AC,HBS 415-341。