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Nickel Alloy Alumel vs NiCr60/16

Nickel Alloy · grade comparison

Nickel Alloy Alumel and NiCr60/16 are both nickel alloy grades. NiCr60/16 is the stronger of the two: yield strength 350 MPa (50.8 ksi) against 230 MPa (33.4 ksi) for Alumel, about 52% more; tensile strength follows at 690 MPa (100 ksi) vs 570 MPa (82.7 ksi). NiCr60/16 is harder — 180 HB against 135 HB for Alumel — which matters for wear surfaces and threads. NiCr60/16 is lighter (8.2 g/cm³ vs 8.6 g/cm³ for Alumel) and NiCr60/16 is stiffer (210 GPa vs 186 GPa).

NiCr60/16Choose it when strength drives the design, or when surface hardness matters.

Alumel vs NiCr60/16: properties

AlumelNiCr60/16

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

186 GPa27 Msi
210 GPa30.5 Msi

Shear Modulus

72 GPa10.4 Msi
80 GPa11.6 Msi

Bulk Modulus

155 GPa22.5 Msi
170 GPa24.7 Msi

Tensile Strength (Ultimate)

570 MPa82.7 ksi
690 MPa100 ksi

Yield Strength (0.2% offset)

230 MPa33.4 ksi
350 MPa50.8 ksi

Elongation at Break

32%
35%

Shear Strength

380 MPa55.1 ksi
450 MPa65.3 ksi

Fatigue Strength (Endurance Limit)

250 MPa36.3 ksi
280 MPa40.6 ksi

Hardness, Brinell

135 HB
180 HB

Hardness, Rockwell B

75 HRB
85 HRB

Hardness, Vickers

150 HV
190 HV

Reduction in Area

—
60%

Charpy V-Notch Impact (RT)

—
100 J73.8 ft·lbf

Same in both: Poisson's Ratio 0.3

Physical

Density and transition temperatures.

Density

8.6 g/cm³0.31 lb/in³
8.2 g/cm³0.3 lb/in³

Melting Point (Solidus)

1,399°C2,550 °F
1,390°C2,534 °F

Liquidus Temperature

1,430°C2,606 °F
1,420°C2,588 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

29.7 W/m·K17.2 BTU/hr·ft·°F
13 W/m·K7.5 BTU/hr·ft·°F

Specific Heat Capacity

523 J/kg·K0.12 BTU/lb·°F
460 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

12.9 µm/m·K7.2 µin/in·°F
13.5 µm/m·K7.5 µin/in·°F

Same in both: Latent Heat of Fusion 290 J/g125 BTU/lb · Max Service Temperature (continuous) 1,100°C2,012 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

5.9 % IACS
1.6 % IACS

Electrical Resistivity

2.94×10⁻⁷ Ω·m11.6 µΩ·in
1.11×10⁻⁶ Ω·m43.7 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.15 V

Corrosion Resistance

62 / 100
58 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability Rating (AISI 1212 = 100 %)

20%
22%

Weldability

60 / 100
62 / 100

Brazeability / Solderability

55 / 100
58 / 100

Castability

—
40 / 100

Same in both: Machinability 30 / 100 · Formability (cold) 75 / 100 · Polishability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

160 MJ/kg68,788 BTU/lb
110 MJ/kg47,292 BTU/lb

Embodied Carbon (primary production)

11.5 kg CO₂/kg
8.5 kg CO₂/kg

Embodied Water

500 L/kg59.9 gal/lb
250 L/kg30 gal/lb

Typical Recycled Content

15%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

66 kN·m/kg
84 kN·m/kg

Specific Stiffness (E / density)

21.6 MN·m/kg
25.6 MN·m/kg

Modulus of Resilience

142 kJ/m³
292 kJ/m³

Thermal Diffusivity

6.6 mm²/s
3.4 mm²/s

Thermal Shock Resistance Index

7
3

Strength versus weight

Yield strength against density for every nickel alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

2005001,0006.577.588.59Density (g/cm³)Yield strength (MPa) — log scaleNiCr60/16Alumel

Manufacturing and finishing

CapabilityAlumelNiCr60/16
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Both take the same 3 finishes: Gold Plating, Plasma Spray, Silver Plating.

Alumel vs NiCr60/16 — frequently asked

Is NiCr60/16 stronger than Alumel?

Yes. NiCr60/16 has a typical yield strength of 350 MPa (50.8 ksi) against 230 MPa (33.4 ksi) for Alumel — about 52% more. Tensile strength is 690 MPa (100 ksi) vs 570 MPa (82.7 ksi).

Which is cheaper, Alumel or NiCr60/16?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

When should I choose Alumel over NiCr60/16?

Pick NiCr60/16 when strength drives the design, or when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Alumel and NiCr60/16 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.