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Nickel Alloy BNi-6 vs ENiCrCoMo-1

Nickel Alloy · grade comparison

Nickel Alloy BNi-6 and ENiCrCoMo-1 are both nickel alloy grades. BNi-6 is harder — 520 HV against 220 HV for ENiCrCoMo-1 — which matters for wear surfaces and threads. BNi-6 is lighter (7.7 g/cm³ vs 8.36 g/cm³ for ENiCrCoMo-1) and ENiCrCoMo-1 is stiffer (211 GPa vs 130 GPa). On the shop floor, ENiCrCoMo-1 machines more easily (poor vs not recommended) and ENiCrCoMo-1 welds better (excellent vs not recommended).

BNi-6Choose it when surface hardness matters, or when weight is the constraint.

ENiCrCoMo-1Choose it when the part sees heat, or when the part is machined in volume.

BNi-6 vs ENiCrCoMo-1: properties

BNi-6ENiCrCoMo-1

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

130 GPa18.9 Msi
211 GPa30.6 Msi

Shear Strength

200 MPa29 ksi
480 MPa69.6 ksi

Hardness, Vickers

520 HV
220 HV

Shear Modulus

—
81 GPa11.7 Msi

Bulk Modulus

—
176 GPa25.5 Msi

Tensile Strength (Ultimate)

—
720 MPa104 ksi

Yield Strength (0.2% offset)

—
430 MPa62.4 ksi

Elongation at Break

—
38%

Reduction in Area

—
40%

Compressive Strength

—
440 MPa63.8 ksi

Fatigue Strength (Endurance Limit)

—
300 MPa43.5 ksi

Fracture Toughness (K_IC)

—
100 MPa·√m91 ksi·√in

Charpy V-Notch Impact (RT)

—
75 J55.3 ft·lbf

Hardness, Brinell

—
210 HB

Hardness, Rockwell B

—
94 HRB

Hardness, Rockwell C

—
17 HRC

Same in both: Poisson's Ratio 0.3

Physical

Density and transition temperatures.

Density

7.7 g/cm³0.28 lb/in³
8.36 g/cm³0.3 lb/in³

Melting Point (Solidus)

875°C1,607 °F
1,332°C2,430 °F

Liquidus Temperature

875°C1,607 °F
1,380°C2,516 °F

Thermal

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

Thermal Conductivity

10 W/m·K5.8 BTU/hr·ft·°F
13.6 W/m·K7.9 BTU/hr·ft·°F

Specific Heat Capacity

440 J/kg·K0.11 BTU/lb·°F
419 J/kg·K0.1 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

13 µm/m·K7.2 µin/in·°F
11.6 µm/m·K6.4 µin/in·°F

Max Service Temperature (continuous)

425°C797 °F
1,100°C2,012 °F

Min Service Temperature

-100°C-148 °F
-196°C-321 °F

Latent Heat of Fusion

—
290 J/g125 BTU/lb

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10⁻⁶ Ω·m39.4 µΩ·in
1.22×10⁻⁶ Ω·m48 µΩ·in

Electrical Conductivity

—
1.4 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

35 / 100
80 / 100

Galvanic Potential (seawater, vs SCE)

—
-0.15 V

Manufacturability

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

Machinability

10 / 100
20 / 100

Weldability

10 / 100
85 / 100

Brazeability / Solderability

95 / 100
55 / 100

Polishability

50 / 100
60 / 100

Machinability Rating (AISI 1212 = 100 %)

—
12%

Formability (cold)

—
35 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

155 MJ/kg66,638 BTU/lb
175 MJ/kg75,237 BTU/lb

Embodied Carbon (primary production)

13 kg CO₂/kg
14 kg CO₂/kg

Embodied Water

300 L/kg35.9 gal/lb
350 L/kg41.9 gal/lb

Typical Recycled Content

10%
30%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

16.9 MN·m/kg
25.2 MN·m/kg

Thermal Diffusivity

3 mm²/s
3.9 mm²/s

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 scaleENiCrCoMo-1

Manufacturing and finishing

CapabilityBNi-6ENiCrCoMo-1
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

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

BNi-6 vs ENiCrCoMo-1 — frequently asked

What is the difference between BNi-6 and ENiCrCoMo-1?

Nickel Alloy BNi-6 and ENiCrCoMo-1 are both nickel alloy grades. BNi-6 is harder — 520 HV against 220 HV for ENiCrCoMo-1 — which matters for wear surfaces and threads. BNi-6 is lighter (7.7 g/cm³ vs 8.36 g/cm³ for ENiCrCoMo-1) and ENiCrCoMo-1 is stiffer (211 GPa vs 130 GPa).

Which is cheaper, BNi-6 or ENiCrCoMo-1?

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, BNi-6 or ENiCrCoMo-1?

ENiCrCoMo-1. Its machinability rates poor (20/100) against not recommended (10/100) for BNi-6; for welding the order is ENiCrCoMo-1 first (excellent, 85/100) then BNi-6 (not recommended, 10/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in BNi-6 and ENiCrCoMo-1 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.