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Nickel Alloy BNi-2 vs ENiCrCoMo-1

Nickel Alloy · grade comparison

Nickel Alloy BNi-2 and ENiCrCoMo-1 are both nickel alloy grades. ENiCrCoMo-1 is the more ductile: elongation 38% versus 2% for BNi-2, and BNi-2 is harder (42 HRC vs 17 HRC). BNi-2 is lighter (7.9 g/cm³ vs 8.36 g/cm³ for ENiCrCoMo-1) and ENiCrCoMo-1 is stiffer (211 GPa vs 200 GPa). On the shop floor, ENiCrCoMo-1 machines more easily (poor vs not recommended) and ENiCrCoMo-1 welds better (excellent vs poor).

BNi-2Choose it when weight is the constraint.

ENiCrCoMo-1Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

BNi-2 vs ENiCrCoMo-1: properties

BNi-2ENiCrCoMo-1

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
211 GPa30.6 Msi

Tensile Strength (Ultimate)

690 MPa100 ksi
720 MPa104 ksi

Elongation at Break

2%
38%

Shear Strength

380 MPa55.1 ksi
480 MPa69.6 ksi

Hardness, Rockwell C

42 HRC
17 HRC

Hardness, Vickers

420 HV
220 HV

Shear Modulus

—
81 GPa11.7 Msi

Bulk Modulus

—
176 GPa25.5 Msi

Yield Strength (0.2% offset)

—
430 MPa62.4 ksi

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

Same in both: Poisson's Ratio 0.3

Physical

Density and transition temperatures.

Density

7.9 g/cm³0.29 lb/in³
8.36 g/cm³0.3 lb/in³

Melting Point (Solidus)

971°C1,780 °F
1,332°C2,430 °F

Liquidus Temperature

999°C1,830 °F
1,380°C2,516 °F

Thermal

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

Thermal Conductivity

30 W/m·K17.3 BTU/hr·ft·°F
13.6 W/m·K7.9 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

12.8 µm/m·K7.1 µin/in·°F
11.6 µm/m·K6.4 µin/in·°F

Latent Heat of Fusion

280 J/g120 BTU/lb
290 J/g125 BTU/lb

Max Service Temperature (continuous)

870°C1,598 °F
1,100°C2,012 °F

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

—
1.4 % IACS

Electrical Resistivity

—
1.22×10⁻⁶ Ω·m48 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

62 / 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

15 / 100
85 / 100

Formability (cold)

5 / 100
35 / 100

Brazeability / Solderability

96 / 100
55 / 100

Polishability

55 / 100
60 / 100

Machinability Rating (AISI 1212 = 100 %)

—
12%

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

170 MJ/kg73,087 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

15%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

87 kN·m/kg
86 kN·m/kg

Specific Stiffness (E / density)

25.3 MN·m/kg
25.2 MN·m/kg

Thermal Diffusivity

8.3 mm²/s
3.9 mm²/s

Thermal Shock Resistance Index

8
4

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-2ENiCrCoMo-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-2 vs ENiCrCoMo-1 — frequently asked

What is the difference between BNi-2 and ENiCrCoMo-1?

Nickel Alloy BNi-2 and ENiCrCoMo-1 are both nickel alloy grades. ENiCrCoMo-1 is the more ductile: elongation 38% versus 2% for BNi-2, and BNi-2 is harder (42 HRC vs 17 HRC). BNi-2 is lighter (7.9 g/cm³ vs 8.36 g/cm³ for ENiCrCoMo-1) and ENiCrCoMo-1 is stiffer (211 GPa vs 200 GPa).

Which is cheaper, BNi-2 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-2 or ENiCrCoMo-1?

ENiCrCoMo-1. Its machinability rates poor (20/100) against not recommended (10/100) for BNi-2; for welding the order is ENiCrCoMo-1 first (excellent, 85/100) then BNi-2 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in BNi-2 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.