Rod nickel alloy VDM® 617

sheetplatefor the aerospace industry

VDM® Alloy 617 is a nickel-chromium-cobalt-molybdenum alloy with excellent mechanical and creep properties up to 1,100 °C (2,000 °F) due to solid solution hardening. As a result of its balanced chemical composition the alloy shows outstanding resistance to high temperature corrosion such as oxidation and carburization. VDM® Alloy 617 is characterized by:  very good short-term and long-term mechanical properties up to 1,100 °C (2,000 °F),  excellent resistance to oxidation up to 1,100 °C (2,000 °F),  excellent resistance to carburization up to 1,100 °C (2,000 °F),  good weldability. VDM® Alloy 617 has a face-centered cubic structure with good metallurgical stability. Its excellent high-temperature strength is achieved by solid-solution hardening. The alloy is not age-hardenable. The following mechanical properties apply to VDM® Alloy 617 in the solution-annealed and quenched condition and in the stated semi-finished forms and dimensions. Specified properties of material outside these size ranges are subject to special enquiry. VDM® Alloy 617 is susceptible to relaxation cracking if new solution-annealed and welded semi-fabricated products are exposed to service temperatures within the temperature range of 550 to 780 °C (1,020 to 1,436 °F) without a prior postweld stabilizing heat treatment (PWHT) at 980 °C (1,800 °F) for 3 hrs. The heating and cooling rates for such stabilizing heat treatments are not critical.