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Nickel Alloy ENiCrMo-10 vs ENiCrMo-4

Nickel Alloy · grade comparison

Nickel Alloy ENiCrMo-10 and ENiCrMo-4 are both nickel alloy grades. Both yield at about 500 MPa — strength does not separate them. ENiCrMo-10 is harder — 18 HRC against 14 HRC for ENiCrMo-4 — which matters for wear surfaces and threads. ENiCrMo-10 conducts electricity better (1.5 % IACS vs 1.3 % IACS). On the shop floor, ENiCrMo-10 forms better (fair vs poor).

ENiCrMo-10Choose it when surface hardness matters.

ENiCrMo-10 vs ENiCrMo-4: properties

ENiCrMo-10ENiCrMo-4

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

206 GPa29.9 Msi
205 GPa29.7 Msi

Bulk Modulus

172 GPa24.9 Msi
180 GPa26.1 Msi

Tensile Strength (Ultimate)

760 MPa110 ksi
745 MPa108 ksi

Yield Strength (0.2% offset)

500 MPa72.5 ksi
505 MPa73.2 ksi

Elongation at Break

38%
35%

Reduction in Area

45%
42%

Compressive Strength

520 MPa75.4 ksi
—

Shear Strength

465 MPa67.4 ksi
460 MPa66.7 ksi

Fatigue Strength (Endurance Limit)

260 MPa37.7 ksi
300 MPa43.5 ksi

Fracture Toughness (K_IC)

110 MPa·√m100 ksi·√in
120 MPa·√m109 ksi·√in

Charpy V-Notch Impact (RT)

80 J59 ft·lbf
70 J51.6 ft·lbf

Hardness, Brinell

210 HB
200 HB

Hardness, Rockwell B

95 HRB
92 HRB

Hardness, Rockwell C

18 HRC
14 HRC

Hardness, Vickers

225 HV
210 HV

Same in both: Shear Modulus 79 GPa11.5 Msi · Poisson's Ratio 0.31

Physical

Density and transition temperatures.

Density

8.69 g/cm³0.31 lb/in³
8.87 g/cm³0.32 lb/in³

Melting Point (Solidus)

1,357°C2,475 °F
1,323°C2,413 °F

Liquidus Temperature

1,399°C2,550 °F
1,371°C2,500 °F

Thermal

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

Thermal Conductivity

10.1 W/m·K5.8 BTU/hr·ft·°F
10.2 W/m·K5.9 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

12.4 µm/m·K6.9 µin/in·°F
11.2 µm/m·K6.2 µin/in·°F

Same in both: Max Service Temperature (continuous) 650°C1,202 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.5 % IACS
1.3 % IACS

Electrical Resistivity

1.14×10⁻⁶ Ω·m44.9 µΩ·in
1.3×10⁻⁶ Ω·m51.2 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.08 V
-0.05 V

Same in both: Corrosion Resistance 92 / 100

Manufacturability

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

Machinability

22 / 100
17 / 100

Weldability

88 / 100
90 / 100

Formability (cold)

45 / 100
30 / 100

Brazeability / Solderability

55 / 100
45 / 100

Polishability

78 / 100
60 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 12%

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

165 MJ/kg70,937 BTU/lb
215 MJ/kg92,433 BTU/lb

Embodied Carbon (primary production)

13.5 kg CO₂/kg
14 kg CO₂/kg

Embodied Water

300 L/kg35.9 gal/lb
260 L/kg31.2 gal/lb

Typical Recycled Content

35%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

87 kN·m/kg
84 kN·m/kg

Specific Stiffness (E / density)

23.7 MN·m/kg
23.1 MN·m/kg

Modulus of Resilience

607 kJ/m³
622 kJ/m³

Thermal Diffusivity

2.8 mm²/s
2.7 mm²/s

Same in both: Thermal Shock Resistance Index 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 scaleENiCrMo-10ENiCrMo-4

Manufacturing and finishing

CapabilityENiCrMo-10ENiCrMo-4
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

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

ENiCrMo-10 vs ENiCrMo-4 — frequently asked

What is the difference between ENiCrMo-10 and ENiCrMo-4?

Nickel Alloy ENiCrMo-10 and ENiCrMo-4 are both nickel alloy grades. Both yield at about 500 MPa — strength does not separate them. ENiCrMo-10 is harder — 18 HRC against 14 HRC for ENiCrMo-4 — which matters for wear surfaces and threads.

Which is cheaper, ENiCrMo-10 or ENiCrMo-4?

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, ENiCrMo-10 or ENiCrMo-4?

ENiCrMo-10, by a small margin. Both rate poor for machinability — 22/100 against 17/100 for ENiCrMo-4.

Ready to make it?

Upload a CAD file and FabDigit prices the part in ENiCrMo-10 and ENiCrMo-4 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.