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Nickel Alloy Monel R-405 vs Nickel 200

Nickel Alloy · grade comparison

Nickel Alloy Monel R-405 and Nickel 200 are both nickel alloy grades. Monel R-405 is the stronger of the two: yield strength 450 MPa (65.3 ksi) against 148 MPa (21.5 ksi) for Nickel 200, about 3.0 times as much; tensile strength follows at 620 MPa (89.9 ksi) vs 462 MPa (67 ksi). In exchange, Nickel 200 is the more ductile: elongation 47% versus 22% for Monel R-405, and Monel R-405 is harder (165 HB vs 109 HB). Nickel 200 is stiffer (204 GPa vs 179 GPa) and Monel R-405 runs hotter in service (480°C vs 315°C continuous). On the shop floor, Monel R-405 machines more easily (50 vs 35 out of 100), Nickel 200 welds better (excellent vs poor), and Nickel 200 sits in a lower cost tier (premium, $$$) than Monel R-405 (high, $$$$).

Monel R-405Choose it when strength drives the design, or when the part sees heat.

Nickel 200Choose it when the part is bent, formed or impact-loaded, or when it will be welded.

Monel R-405 vs Nickel 200: properties

Monel R-405Nickel 200

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

179 GPa26 Msi
204 GPa29.6 Msi

Shear Modulus

66 GPa9.6 Msi
79 GPa11.5 Msi

Bulk Modulus

152 GPa22 Msi
180 GPa26.1 Msi

Poisson's Ratio

0.32
0.31

Tensile Strength (Ultimate)

620 MPa89.9 ksi
462 MPa67 ksi

Yield Strength (0.2% offset)

450 MPa65.3 ksi
148 MPa21.5 ksi

Elongation at Break

22%
47%

Reduction in Area

50%
70%

Shear Strength

420 MPa60.9 ksi
310 MPa45 ksi

Fatigue Strength (Endurance Limit)

290 MPa42.1 ksi
240 MPa34.8 ksi

Charpy V-Notch Impact (RT)

110 J81.1 ft·lbf
200 J148 ft·lbf

Hardness, Brinell

165 HB
109 HB

Hardness, Rockwell B

85 HRB
55 HRB

Physical

Density and transition temperatures.

Density

8.83 g/cm³0.32 lb/in³
8.89 g/cm³0.32 lb/in³

Melting Point (Solidus)

1,300°C2,372 °F
1,435°C2,615 °F

Liquidus Temperature

1,350°C2,462 °F
1,446°C2,635 °F

Thermal

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

Thermal Conductivity

21.8 W/m·K12.6 BTU/hr·ft·°F
70.2 W/m·K40.6 BTU/hr·ft·°F

Specific Heat Capacity

427 J/kg·K0.1 BTU/lb·°F
456 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

13.9 µm/m·K7.7 µin/in·°F
13.3 µm/m·K7.4 µin/in·°F

Latent Heat of Fusion

290 J/g125 BTU/lb
297 J/g128 BTU/lb

Max Service Temperature (continuous)

480°C896 °F
315°C599 °F

Min Service Temperature

-200°C-328 °F
-250°C-418 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.2 % IACS
18 % IACS

Electrical Resistivity

5.47×10⁻⁷ Ω·m21.5 µΩ·in
9.6×10⁻⁸ Ω·m3.78 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.15 V
-0.25 V

Corrosion Resistance

78 / 100
74 / 100

Manufacturability

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

Machinability

50 / 100
35 / 100

Weldability

20 / 100
85 / 100

Formability (cold)

45 / 100
90 / 100

Brazeability / Solderability

55 / 100
75 / 100

Polishability

60 / 100
80 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 40% · Castability 40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

145 MJ/kg62,339 BTU/lb
165 MJ/kg70,937 BTU/lb

Embodied Carbon (primary production)

11 kg CO₂/kg
12.5 kg CO₂/kg

Embodied Water

400 L/kg47.9 gal/lb
320 L/kg38.3 gal/lb

Typical Recycled Content

35%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

70 kN·m/kg
52 kN·m/kg

Specific Stiffness (E / density)

20.3 MN·m/kg
22.9 MN·m/kg

Modulus of Resilience

566 kJ/m³
54 kJ/m³

Thermal Diffusivity

5.8 mm²/s
17.3 mm²/s

Thermal Shock Resistance Index

5
12

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 200Monel R-405

Manufacturing and finishing

CapabilityMonel R-405Nickel 200
CNC machining—Yes
Sheet metal—Yes
Default condition—O
Relative cost$$$$ High$$$ Premium
Min. machined wall—1.5 mm
Best machined surface—Ra 1.6 µm
Electropolishing—Yes
HVOF Coating—Yes

They share 3 finishes: Gold Plating, Plasma Spray, Silver Plating.

Monel R-405 vs Nickel 200 — frequently asked

Is Monel R-405 stronger than Nickel 200?

Yes. Monel R-405 has a typical yield strength of 450 MPa (65.3 ksi) against 148 MPa (21.5 ksi) for Nickel 200 — about 3.0 times as much. Tensile strength is 620 MPa (89.9 ksi) vs 462 MPa (67 ksi).

Which is cheaper, Monel R-405 or Nickel 200?

Nickel 200 is the lower-cost material: it sits in the premium tier ($$$) while Monel R-405 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, Monel R-405 or Nickel 200?

Monel R-405, by a small margin. Both rate fair for machinability — 50/100 against 35/100 for Nickel 200; for welding the order is Nickel 200 first (excellent, 85/100) then Monel R-405 (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Monel R-405 and Nickel 200 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.