Nickel Alloy CW6M vs CZ-100
Nickel Alloy · grade comparison
Nickel Alloy CW6M and CZ-100 are both nickel alloy grades. CW6M is the stronger of the two: yield strength 310 MPa (45 ksi) against 160 MPa (23.2 ksi) for CZ-100, about 94% more; tensile strength follows at 550 MPa (79.8 ksi) vs 380 MPa (55.1 ksi). CW6M is the more ductile: elongation 40% versus 25% for CZ-100, and CW6M is harder (185 HB vs 110 HB). CW6M is stiffer (200 GPa vs 180 GPa) and CW6M runs hotter in service (650°C vs 480°C continuous). On the shop floor, CZ-100 machines more easily (fair vs poor) and CW6M welds better (very good vs good).
CW6MChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
CZ-100Choose it when the part is machined in volume.
CW6M vs CZ-100: 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.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Compressive Strength
Same in both: Poisson's Ratio 0.31
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 Conductivity
Electrical Resistivity
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
Machinability Rating (AISI 1212 = 100 %)
Weldability
Castability
Brazeability / Solderability
Formability (cold)
Same in both: Polishability 70 / 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 | CW6M | CZ-100 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 3 finishes: Gold Plating, Plasma Spray, Silver Plating.
CW6M vs CZ-100 — frequently asked
Is CW6M stronger than CZ-100?
Yes. CW6M has a typical yield strength of 310 MPa (45 ksi) against 160 MPa (23.2 ksi) for CZ-100 — about 94% more. Tensile strength is 550 MPa (79.8 ksi) vs 380 MPa (55.1 ksi).
Which is cheaper, CW6M or CZ-100?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, CW6M or CZ-100?
CZ-100. Its machinability rates fair (35/100) against poor (20/100) for CW6M; for welding the order is CW6M first (very good, 75/100) then CZ-100 (good, 60/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in CW6M and CZ-100 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.