Chemical composition Element Weight percent Element Weight percent Ni Balance Cr 18.0–21.0 Co 15.0–21.0 Ti 2.0–3.0 Al 1.0–2.0 Fe 1.5 max C 0.13 max Si 1.0 max Mn 1.0 max Cu 0.2 max B 0.02 max S 0.015 max Pb 0.0020 max Zr 0.15 max

Application areas Gas turbine blades and discs Turbine forgings and ring sections Hot-working tools High-temperature springs, subject to wire condition qualification

Chemical composition Element Weight percent Element Weight percent Ni Balance Cr 18.0–21.0 Co 15.0–21.0 Ti 2.0–3.0 Al 1.0–2.0 Fe 1.5 max C 0.13 max Si 1.0 max Mn 1.0 max Cu 0.2 max B 0.02 max S 0.015 max Pb 0.0020 max Zr 0.15 max

Application areas Gas turbine blades and discs Turbine forgings and ring sections Hot-working tools High-temperature springs, subject to wire condition qualification

Alloy 90/UNS N07090

Grade: Nimonic 90/UNS N07090

Sheet/Plate: 0.3mm-150mm

Strip/Foil: 0.02mm-16mm

Pipe: 6mm*0.5mm-1200mm*100mm

Bar: Ф6mm – Ф600mm

Wire: Ф0.01mm – Ф6mm

Others: Forged Rings, Flanges, Elbows, Tees, Reducers etc.

Standard: ASTM/ASME/AMS

NIMONIC 90 is a wrought nickel chromium cobalt alloy hardened by titanium and aluminium additions and aging. It was developed for creep-resisting service at temperatures up to approximately 920°C. The alloy offers high-temperature strength for highly stressed turbine components and hot-working tools. Solution treatment and aging must match the product form, because bar and sheet use different processing cycles to develop their intended mechanical properties.

Chemical composition

Element	Weight percent	Element	Weight percent
Ni	Balance	Cr	18.0–21.0
Co	15.0–21.0	Ti	2.0–3.0
Al	1.0–2.0	Fe	1.5 max
C	0.13 max	Si	1.0 max
Mn	1.0 max	Cu	0.2 max
B	0.02 max	S	0.015 max
Pb	0.0020 max	Zr	0.15 max

Mechanical properties

Extruded bar subsequently forged; 1080°C for 8 h / air cool plus 700°C for 16 h / air cool. Special Metals Table 9, average of 15 casts. Elongation uses a proportional gauge length of 5.65√S0.

Test temperature °C	0.2% proof MPa	Tensile MPa	Elongation %
20	813	1251	28
600	723	1092	23
700	711	965	13
800	573	683	10
900	300	346	21

Application areas

Gas turbine blades and discs
Turbine forgings and ring sections
Hot-working tools
High-temperature springs, subject to wire condition qualification

Introduction

Specification

Chemical composition

Element	Weight percent	Element	Weight percent
Ni	Balance	Cr	18.0–21.0
Co	15.0–21.0	Ti	2.0–3.0
Al	1.0–2.0	Fe	1.5 max
C	0.13 max	Si	1.0 max
Mn	1.0 max	Cu	0.2 max
B	0.02 max	S	0.015 max
Pb	0.0020 max	Zr	0.15 max

Mechanical

Mechanical properties

Extruded bar subsequently forged; 1080°C for 8 h / air cool plus 700°C for 16 h / air cool. Special Metals Table 9, average of 15 casts. Elongation uses a proportional gauge length of 5.65√S0.