UNS N07090 Cobalt Nickel Based Alloys W. Nr.2.4632 / Nitronic90 ASME SB 167

Introduction:

Nitronic​90 (UNS N07090/W. Nr. 2.4632) is a wrought nickel-chromium-cobalt base alloy strengthened by additions of titanium and aluminum. It has been developed as an age-hardenable creep resisting alloy for service at temperatures up to 920°C

The recommended heat treatments for Nitronic90 are as follows:
Nitronic​90 Bar
Solution Treatment - 1080 °C (1975 °F) for 8 hours + air cool or oil/ water quench
Precipitation Heat Treatment (As per BS HR2) - 700 °C (1290 °F) for 16 hours + air cool

Nitronic​90 Sheet
Solution Treatment - 1100-1150 °C for 1-10 minutes + air cool or oil /water quench
Stabilization Heat Treatment - 925 °C for 1 hour + air cool
Precipitation Heat Treatment - 750 °C for 4 hours and air cool
(BS HR202/ MSRR 7016 / Siemens TLV 85252100 do not require the Stabilization Treatment stage)

Application

The alloy is used for turbine blades, discs, forgings, ring sections and hot-working tools. Also used to make Aerospace fasteners.

Equal grades

Technical Data Sheet

Standard

AMS 5829

Forms of product available 

Plate, sheet, strip, bar, wire, rod, pipe, tube, forging.

Delivery

Available on request