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Short Description:
Nimonic 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.
Product Description
Alloy 263 is strength at elevated temperature is not quite as high as materials such as HAYNES 282 alloy, Waspaloy alloy, or R-41 alloy. However, it is much easier to form or weld than Waspaloy alloy and R-41 alloy. Because HAYNES 282 alloy exhibits superior tensile, creep-rupture, and low cycle fatigue strength than HAYNES 263 alloy and has significantly greater fabricability than Waspaloy and R-41 alloys, it is replacing HAYNES 263 alloy in many applications. HAYNES 263 alloy is normally used for applications up to about 1650°F (900°C). Its oxidation resistance is comparable to that for other gamma-prime-strengthened superalloys. Alloy 263 can be welded using matching composition filler wire in both TIG and MIG forms
Nimonic 263 Characteristic
- With very good aging strength characteristics,
- Excellent manufacturing characteristics under annealing condition
Nimonic 263 Chemical Composition
| % | C | Si | Mn | S | Ag | AI | B | Bi | Co | Cr | Cu | Fe | Mo | Pb | Ti | Ti+AI | Ni |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 0.04 | – | – | – | – | 0.3 | – | – | 19 | 19 | – | – | 5.6 | – | 1.9 | 2.4 | - |
| Max | 0.08 | 0.4 | 0.6 | 0.007 | 0.0005 | 0.6 | 0.005 | 0.0001 | 21 | 21 | 0.2 | 0.7 | 6.1 | 0.002 | 2.4 | 2.8 | balance |
Nimonic 263 Physical Properties
| Density | Melting Point | Coefficient of Expansion | Modulus of Elasticity |
|---|---|---|---|
| 8.36 g/cm3 | 1325 °C | 10.6 μm/m• °C (20 – 100 °C) | 222.5 kN/mm² |
| 0.302 lb/in³ | 2415 °F | 5.7 x 10-6 in/in• °F (70 – 212 °F) | 32270 ksi |
Nimonic 263 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 | - |
| 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 | - |
Nimonic 263 Heat Treatment
Alloy 263 is typically heat treated in two stages–solution treatment followed by an age hardening prior to service/fabrication.
Hot-Rolled sheet is normally given a solution treatment of 2100°F(1150°C), ½hr, water quenched or air cooled, followed by an aging of 1470°F(800°C), 8hrs, air cooled.
Cold-Rolled sheet and cold-drawn section(including tube) are given a solution treatment of 2100°F(1150°C), 3-10 minutes, FBQ or WQ, and then aged at 1470°F(800°C), 8hrs, AC.
Extruded/forged bars and section for forging or machining are usually solution treated at 2100°F(1150°C),1½-2½hrs, WQ, followed by an aging treatment of 1470°F(800°C), 8hrs, AC.
- Bars & Rods & Foring Ring /Flanges
- Sheet & Plate
- Strip & Coil
- Welding Wire &Spring wire
- Seamless Tube & Welded Pipe
»Round Bar & Square Bar & Hexagon Bar
● Diameter : φ8～φ300mm Length:10mm-6000mm
● Hot forging, Hot Rolling, Cold Drawing
● Bright Surface, Polished Surface, Black Surface
»Tube & Pipe:Seamless Tube& Welded Pipe
● Cold Drawing Seamless Pipe： φ1.0～φ220mm
● Hot Extrusion pipe: φ50～φ250mm
● Others : U Blend Tube and Elbow
»Hot Rolled Plate & Cold Rolled Sheet
● Cold Rolling Sheet Thickness: ≦2.0mm Width:≦1500m
● Hot rolling Plate Thickness: ≧4.0mm Width: ≦2500m
»Strip & Tape Ribbon
● Thickness: ≧ 0.01mm Width: 15mm-300mm
● Cold rolling BA Strip, Hard & Soft Condition
»Straight Length Wire & Spool Wire
● Welding Wire: φ 0.1mm～6.0mm Cut length Rod: φ1.0～φ8.0mm
● Package : 5-25kg/Spool or Box
Nimonic 263 ApplicationsI
HAYNES 263 alloy combines properties which make it suitable for a variety of fabricated component applications in both aircraft turbine engine and industrial turbine applications. These include low-temperature combustors, transition liners, and some ring components.