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Nickel Alloy Nimonic 86-CD vs Nimonic 86 CR-H

Nickel Alloy · Nimonic 86 temper comparison

Nimonic 86-CD and Nimonic 86 CR-H are two conditions of the same nickel alloy grade, Nimonic 86: CD (cold drawn) versus CR-H (cold Rolled Hard). The chemistry is identical, so every difference below comes from the condition. Nimonic 86 CR-H is the stronger of the two: yield strength 900 MPa (131 ksi) against 700 MPa (102 ksi) for Nimonic 86-CD, about 29% more; tensile strength follows at 1,100 MPa (160 ksi) vs 950 MPa (138 ksi). In exchange, Nimonic 86-CD is the more ductile: elongation 25% versus 8% for Nimonic 86 CR-H, and Nimonic 86 CR-H is harder (310 HB vs 260 HB). Nimonic 86-CD runs hotter in service (600°C vs 550°C continuous). On the shop floor, Nimonic 86-CD machines more easily (26 vs 15 out of 100).

Nimonic 86-CDChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

Nimonic 86 CR-HChoose it when strength drives the design.

Nimonic 86-CD vs Nimonic 86 CR-H: properties

Nimonic 86-CDNimonic 86 CR-H

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

950 MPa138 ksi
1,100 MPa160 ksi

Yield Strength (0.2% offset)

700 MPa102 ksi
900 MPa131 ksi

Elongation at Break

25%
8%

Reduction in Area

35%
20%

Shear Strength

600 MPa87 ksi
670 MPa97.2 ksi

Fatigue Strength (Endurance Limit)

350 MPa50.8 ksi
410 MPa59.5 ksi

Charpy V-Notch Impact (RT)

70 J51.6 ft·lbf
40 J29.5 ft·lbf

Hardness, Brinell

260 HB
310 HB

Hardness, Rockwell B

100 HRB
92 HRB

Hardness, Vickers

272 HV
325 HV

Same in both: Elastic (Young's) Modulus 218 GPa31.6 Msi · Shear Modulus 84 GPa12.2 Msi · Bulk Modulus 172 GPa24.9 Msi · Poisson's Ratio 0.31

Physical

Density and transition temperatures.

Same in both: Density 8.5 g/cm³0.31 lb/in³ · Melting Point (Solidus) 1,330°C2,426 °F · Liquidus Temperature 1,380°C2,516 °F

Thermal

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

Max Service Temperature (continuous)

600°C1,112 °F
550°C1,022 °F

Same in both: Thermal Conductivity 10 W/m·K5.8 BTU/hr·ft·°F · Specific Heat Capacity 440 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12.2 µm/m·K6.8 µin/in·°F · Latent Heat of Fusion 285 J/g123 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1.24×10⁻⁶ Ω·m48.8 µΩ·in
1.25×10⁻⁶ Ω·m49.2 µΩ·in

Same in both: Electrical Conductivity 1.4 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

80 / 100
76 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V

Manufacturability

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

Machinability

26 / 100
15 / 100

Machinability Rating (AISI 1212 = 100 %)

14%
8%

Weldability

65 / 100
60 / 100

Formability (cold)

35 / 100
20 / 100

Same in both: Castability 35 / 100 · Brazeability / Solderability 65 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 200 MJ/kg85,985 BTU/lb · Embodied Carbon (primary production) 14.5 kg CO₂/kg · Embodied Water 320 L/kg38.3 gal/lb · Typical Recycled Content 40%

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 scaleNimonic 86

Nimonic 86-CD vs Nimonic 86 CR-H — frequently asked

Is Nimonic 86 CR-H stronger than Nimonic 86-CD?

Yes. Nimonic 86 CR-H has a typical yield strength of 900 MPa (131 ksi) against 700 MPa (102 ksi) for Nimonic 86-CD — about 29% more. Tensile strength is 1,100 MPa (160 ksi) vs 950 MPa (138 ksi).

Which condition does FabDigit quote by default, CD or CR-H?

SA is the default Nimonic 86 condition in the FabDigit quote flow (neither CD nor CR-H). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which is easier to machine, Nimonic 86-CD or Nimonic 86 CR-H?

Nimonic 86-CD, by a small margin. Both rate poor for machinability — 26/100 against 15/100 for Nimonic 86 CR-H; for welding the order is Nimonic 86-CD first (good, 65/100) then Nimonic 86 CR-H (good, 60/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Nimonic 86-CD and Nimonic 86 CR-H 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.