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Nickel Alloy 263/ Nimonic 263®
Technical Data Sheet
Nimonic alloy 263 is an age-hardenable nickel-cobalt-chrome-molybdenum alloy which was designed to have excellent fabrication characteristics in the annealed condition but also very good aged strength properties. Alloy 263 is easier to form or weld than other materials such as Waspaloy or Rene 41 and exhibits excellent intermediate temperature ductility. Alloy 263 is supplied in the annealed condition and its excellent ductility in this condition makes it suitable for cold forming as well as hot working. Alloy 263 can be welded using matching composition filler wire in both TIG and MIG forms. The recommended heat treatments for Nimonic 263 are as follows:
Extruded Bar:
Solution Treatment - 1150 °C for 1.5-2.5 hours + water quench
Ageing Treatment - 800 °C for 8 hours + air cool
(As per BS HR10 / AMS 5886)
Hot-rolled Sheet
Solution Treatment - 1150 °C for 0.5 hours + water quench or air cool
Ageing Treatment - 800 °C for 8 hours + air cool
(As per BS HR206/ AMS 5872)
Cold-rolled Sheet
Solution Treatment - 1150 °C for 3-10 mins + water quench or fluidized bed quenching
Ageing Treatment - 800 °C for 8 hours + air cool
(As per BS HR206 / AMS 5872)
| Chemical Composition Limits | |||||||||
| Weight% | Ni | Cr | Mn | Si | C | Al | Ag | B | Fe |
| 263 | Bal | 19-21 | 0.60 max | 0.40 max | 0.04-0.08 | 0.60 max | 0.0005 max | 0.005 max | 0.07 max |
| Weight% | Cu | Mo | Co | Ti | Al+Ti | Pb | Bi | S | |
| 263 | 0.20 max | 5.6-6.1 | 19-21 | 1.90-2.40 | 2.40-2.8 | 0.0020 max | 0.0001 max | 0.007 max | |
Typical Mechanical Properties
| Material | Temp °C | Yield Strength 0.2% (Mpa) | Tensile Strength (Mpa) | Elongation % | Hardness HB |
| Nimonic 263 Bar Solution Treated (AMS 5886/ BS HR10) | RT | - | - | - | 248 max |
| Nimonic 263 Bar Heat Treated (AMS 5886 / BS HR10) | RT | 585 (typical) | 1004 (typical) | 45 | - |
| Nimonic 263 Bar Heat Treated (AMS 5886/ BS HR10) | 780 | 403 (min) | 541 (min) | 12 | - |
| Material | Temp °C | Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation % | Hardness HRC |
| Nimonic 263 Sheet Solution Treated (AMS 5872 / BS HR206) | RT | - | - | - | 22.5 max |
| Nimonic 263 Sheet Heat Treated (AMS 5872 / BS HR206 | RT | 580 (typical) | 973 (typical) | 39 - | |
| Nimonic 263 Sheet Heat Treated (AMS 5872 / BS HR206 | 780 | 403 (min) | 541 (min) | 9 | - |
Availability
Nimonic / Haynes Allou 2633 is available in Sheet, Strip, Plate, Bar, Round Bar, Flat Bar, Wire, Tube and Forgings. For all stock availability contact Sales.
Specifications
UNS N07263
Werkstoff Nr. 2.4650
BS HR10 Rod and Bar
BS HR 206 Plate, Sheet, Strip
BS HR 404 Seamless Tube
AECMA PrEn 2199 Bar
AECMA PrEn 2200 Forgings
AECMA PrEn 2201 Bar
AECMA PrEn 2202 Tube
AECMA PrEn 2203 Sheet, Strip
AECMA PrEn 2418 Plate
DIN 17750 Plate, Sheet, Strip
DIN 17751 Pipe and Tube
DIN 17752 Bar and Rod
DIN 17753 Wire
DIN 17754 Forgings
AMS 5872 Sheet, Plate and Strip
AMS 5886 Bar, Forgings, Rings
AFNOR NCK 20 D
AIR 9165 Sheet, Plate, Rod, Bar and Forgings
MSRR 7035
MSRR 7036
GE B50A774A
Tradename's: Nicrofer 5120, Hastelloy C263 and Nimonic 263.
