Nickel Alloy ENiCrCoMo-1 vs ENiCrMo-7
Nickel Alloy · grade comparison
Nickel Alloy ENiCrCoMo-1 and ENiCrMo-7 are both nickel alloy grades. ENiCrMo-7 is the stronger of the two: yield strength 480 MPa (69.6 ksi) against 430 MPa (62.4 ksi) for ENiCrCoMo-1, about 12% more; tensile strength follows at 760 MPa (110 ksi) vs 720 MPa (104 ksi). ENiCrCoMo-1 is harder — 210 HB against 195 HB for ENiCrMo-7 — which matters for wear surfaces and threads. ENiCrCoMo-1 is lighter (8.36 g/cm³ vs 8.64 g/cm³ for ENiCrMo-7) and ENiCrCoMo-1 runs hotter in service (1,100°C vs 650°C continuous). On the shop floor, ENiCrMo-7 forms better (45 vs 35 out of 100).
ENiCrCoMo-1Choose it when surface hardness matters, or when weight is the constraint.
ENiCrMo-7Choose it when strength drives the design.
ENiCrCoMo-1 vs ENiCrMo-7: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all nickel alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all nickel alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Rockwell C
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 211 GPa30.6 Msi · Shear Modulus 81 GPa11.7 Msi · Bulk Modulus 176 GPa25.5 Msi · Elongation at Break 38% · Charpy V-Notch Impact (RT) 75 J55.3 ft·lbf
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Same in both: Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Same in both: Electrical Conductivity 1.4 % IACS
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Formability (cold)
Polishability
Same in both: Machinability Rating (AISI 1212 = 100 %) 12% · Weldability 85 / 100 · Brazeability / Solderability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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.
Manufacturing and finishing
| Capability | ENiCrCoMo-1 | ENiCrMo-7 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 3 finishes: Gold Plating, Plasma Spray, Silver Plating.
ENiCrCoMo-1 vs ENiCrMo-7 — frequently asked
Is ENiCrMo-7 stronger than ENiCrCoMo-1?
Yes. ENiCrMo-7 has a typical yield strength of 480 MPa (69.6 ksi) against 430 MPa (62.4 ksi) for ENiCrCoMo-1 — about 12% more. Tensile strength is 760 MPa (110 ksi) vs 720 MPa (104 ksi).
Which is cheaper, ENiCrCoMo-1 or ENiCrMo-7?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose ENiCrCoMo-1 over ENiCrMo-7?
Pick ENiCrCoMo-1 when surface hardness matters, or when weight is the constraint. Pick ENiCrMo-7 when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in ENiCrCoMo-1 and ENiCrMo-7 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.