Nickel-Fe-Cr alloy, NIMONIC PE11, bar
NIMONIC PE11 Designation
| INCO Inc., Proprietary Alloy: “NIMONIC PE11” |
| UNS number | ~N09901, ~N09777 |
| EN number | 2.4662 |
NIMONIC PE11 Tradenames
| NIMONIC PE11 | Special Metals Corp. (USA) |
NIMONIC PE11 Typical uses
NIMONIC PE11 Composition detail
| Al (aluminum) | 0.7 | – | 1 | % |
| B (boron) | 0 | – | 0.01 | % |
| C (carbon) | 0.03 | – | 0.08 | % |
| Co (cobalt) | 0 | – | 1 | % |
| Cr (chromium) | 17 | – | 19 | % |
| Cu (copper) | 0 | – | 0.5 | % |
| Fe (iron) | 28.4 | – | 38.3 | % |
| Mn (manganese) | 0 | – | 0.2 | % |
| Mo (molybdenum) | 4.75 | – | 5.75 | % |
| Ni (nickel) | 37 | – | 41 | % |
| S (sulfur) | 0 | – | 0.015 | % |
| Si (silicon) | 0 | – | 0.5 | % |
| Ti (titanium) | 2.2 | – | 2.5 | % |
| Zr (zirconium) | 0.02 | – | 0.05 | % |
NIMONIC PE11 Physical properties
NIMONIC PE11 Mechanical properties
| Young’s modulus | 190 | – | 205 | GPa |
| Specific stiffness | 23.7 | – | 25.6 | MN.m/kg |
| Yield strength (elastic limit) | 640 | – | 800 | MPa |
| Tensile strength | 970 | – | 1190 | MPa |
| Specific strength | 79.7 | – | 99.7 | kN.m/kg |
| Elongation | 15 | – | 27 | % strain |
| Compressive strength | 640 | – | 800 | MPa |
| Flexural modulus | 190 | – | 205 | GPa |
| Flexural strength (modulus of rupture) | 640 | – | 800 | MPa |
| Shear modulus | 70 | – | 85 | GPa |
| Bulk modulus | 140 | – | 165 | GPa |
| Poisson’s ratio | 0.28 | – | 0.29 | |
| Shape factor | 21 | | | |
| Hardness – Vickers | 260 | – | 310 | HV |
| Hardness – Rockwell B | 101 | – | 106 | HRB |
| Hardness – Rockwell C | 24 | – | 31 | HRC |
| Hardness – Brinell | 247 | – | 294 | HB |
| Elastic stored energy (springs) | 1050 | – | 1610 | kJ/m3 |
| Fatigue strength at 10^7 cycles | 385 | – | 595 | MPa |
Fatigue strength model (stress range)
Parameters: Stress Ratio = -1, Number of Cycles = 1e7cycles | 359 | – | 638 | MPa |
NIMONIC PE11 Impact & fracture properties
| Fracture toughness | 121 | – | 134 | MPa.m0.5 |
| Toughness (G) | 73.3 | – | 91.1 | kJ/m2 |
NIMONIC PE11 Thermal properties
| Melting point | 1280 | – | 1350 | °C |
| Maximum service temperature | 727 | – | 947 | °C |
| Minimum service temperature | -273 | | | °C |
| Thermal conductivity | 11 | – | 15 | W/m.°C |
| Specific heat capacity | 400 | – | 440 | J/kg.°C |
| Thermal expansion coefficient | 12 | – | 13.5 | µstrain/°C |
| Thermal shock resistance | 250 | – | 324 | °C |
| Thermal distortion resistance | 0.856 | – | 1.19 | MW/m |
| Latent heat of fusion | 270 | – | 300 | kJ/kg |
NIMONIC PE11 Electrical properties
| Electrical resistivity | 80 | – | 120 | µohm.cm |
| Electrical conductivity | 1.44 | – | 2.16 | %IACS |
| Galvanic potential | -0.09 | – | -0.01 | V |
NIMONIC PE11 Magnetic properties
| Magnetic type | Non-magnetic |
NIMONIC PE11 Optical, aesthetic and acoustic properties
| Transparency | Opaque |
| Acoustic velocity | 4860 | – | 5060 | m/s |
| Mechanical loss coefficient (tan delta) | 2e-4 | – | 4e-4 | |
NIMONIC PE11 Processing properties
| Metal casting | Unsuitable |
| Metal cold forming | Acceptable |
| Metal hot forming | Acceptable |
| Metal press forming | Acceptable |
| Metal deep drawing | Unsuitable |
| Machining speed | 6.1 m/min |
Weldability
Notes: Preheating is not required, post weld heat treatment is required | Good |
NIMONIC PE11 Durability
| Water (fresh) | Excellent |
| Water (salt) | Excellent |
| Weak acids | Excellent |
| Strong acids | Acceptable |
| Weak alkalis | Excellent |
| Strong alkalis | Excellent |
| Organic solvents | Excellent |
| Oxidation at 500C | Excellent |
| UV radiation (sunlight) | Excellent |
Galling resistance (adhesive wear)
Notes: Bronze or zinc alloy dies should be used to minimize galling. | Limited use |
| Flammability | Non-flammable |
NIMONIC PE11 Corrosion resistance
| Pitting resistance equivalent number (PREN) | 32.7 – 38 |
| Pitting and crevice corrosion | High (30-40) |
Stress corrosion cracking
Note: Rated in chloride;
Other susceptible environments: Hydroxide | Slightly susceptible |
NIMONIC PE11 Notes
| Warning |
| All nickel compounds should be regarded as toxic. Some can cause cancer and/or fetal abnormalities. |
| Other notes |
| NIMONIC is a registered tradename of the INCO group of companies. |
NIMONIC PE11 Standards with similar compositions
| Tradenames: NIMONIC ALLOY PE11, PYRAD 38 D |
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