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Nickel 201 vs Nickel 270

Nickel Alloy · grade comparison

Nickel 201 and Nickel 270 are both nickel alloy grades. Nickel 201 is the stronger of the two: tensile strength 415 MPa (60.2 ksi) against 345 MPa (50 ksi) for Nickel 270, about 20% more. Nickel 201 is harder — 90 HB against 45 HB for Nickel 270 — which matters for wear surfaces and threads. Nickel 270 conducts electricity better (23 % IACS vs 20 % IACS). On the shop floor, Nickel 201 machines more easily (30 vs 20 out of 100).

Nickel 201Choose it when strength drives the design, or when surface hardness matters.

Nickel 201 vs Nickel 270: properties

Nickel 201Nickel 270

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
207 GPa30 Msi

Shear Modulus

78 GPa11.3 Msi
76 GPa11 Msi

Tensile Strength (Ultimate)

415 MPa60.2 ksi
345 MPa50 ksi

Elongation at Break

47%
50%

Reduction in Area

70%
75%

Shear Strength

265 MPa38.4 ksi
240 MPa34.8 ksi

Fatigue Strength (Endurance Limit)

180 MPa26.1 ksi
165 MPa23.9 ksi

Charpy V-Notch Impact (RT)

250 J184 ft·lbf
200 J148 ft·lbf

Hardness, Brinell

90 HB
45 HB

Hardness, Rockwell B

45 HRB
—

Hardness, Vickers

100 HV
50 HV

Same in both: Bulk Modulus 180 GPa26.1 Msi · Poisson's Ratio 0.31 · Yield Strength (0.2% offset) 105 MPa15.2 ksi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,435°C2,615 °F
1,454°C2,649 °F

Liquidus Temperature

1,446°C2,635 °F
1,455°C2,651 °F

Same in both: Density 8.89 g/cm³0.32 lb/in³

Thermal

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

Thermal Conductivity

79 W/m·K45.6 BTU/hr·ft·°F
85 W/m·K49.1 BTU/hr·ft·°F

Max Service Temperature (continuous)

650°C1,202 °F
600°C1,112 °F

Same in both: Specific Heat Capacity 456 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13.3 µm/m·K7.4 µin/in·°F · Latent Heat of Fusion 297 J/g128 BTU/lb · Min Service Temperature -250°C-418 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

20 % IACS
23 % IACS

Electrical Resistivity

8.5×10⁻⁸ Ω·m3.35 µΩ·in
7.5×10⁻⁸ Ω·m2.95 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

68 / 100
70 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.2 V

Manufacturability

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

Machinability

30 / 100
20 / 100

Machinability Rating (AISI 1212 = 100 %)

25%
18%

Formability (cold)

92 / 100
95 / 100

Brazeability / Solderability

75 / 100
80 / 100

Polishability

80 / 100
82 / 100

Same in both: Weldability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

165 MJ/kg70,937 BTU/lb
220 MJ/kg94,583 BTU/lb

Embodied Carbon (primary production)

12.5 kg CO₂/kg
14 kg CO₂/kg

Embodied Water

400 L/kg47.9 gal/lb
150 L/kg18 gal/lb

Typical Recycled Content

30%
2%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

47 kN·m/kg
39 kN·m/kg

Specific Stiffness (E / density)

23.1 MN·m/kg
23.3 MN·m/kg

Thermal Diffusivity

19.5 mm²/s
21 mm²/s

Thermal Shock Resistance Index

12
11

Same in both: Modulus of Resilience 27 kJ/m³

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 scaleNickel 201Nickel 270

Manufacturing and finishing

CapabilityNickel 201Nickel 270
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

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

Nickel 201 vs Nickel 270 — frequently asked

Is Nickel 201 stronger than Nickel 270?

Yes. Nickel 201 has a typical tensile strength of 415 MPa (60.2 ksi) against 345 MPa (50 ksi) for Nickel 270 — about 20% more.

Which is cheaper, Nickel 201 or Nickel 270?

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.

Which is easier to machine, Nickel 201 or Nickel 270?

Nickel 201, by a small margin. Both rate poor for machinability — 30/100 against 20/100 for Nickel 270.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Nickel 201 and Nickel 270 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.