Precious Metal 22K vs Dental Gold Type II
Precious Metal · grade comparison
Precious Metal 22K and Dental Gold Type II are both precious metal grades. Dental Gold Type II is the stronger of the two: yield strength 200 MPa (29 ksi) against 75 MPa (10.9 ksi) for 22K, about 167% more; tensile strength follows at 380 MPa (55.1 ksi) vs 220 MPa (31.9 ksi). Dental Gold Type II is harder — 100 HB against 52 HB for 22K — which matters for wear surfaces and threads. Dental Gold Type II is lighter (15.6 g/cm³ vs 17.8 g/cm³ for 22K) and Dental Gold Type II is stiffer (95 GPa vs 78 GPa). On the shop floor, Dental Gold Type II machines more easily (good vs fair) and 22K welds better (excellent vs very good).
22KChoose it when it will be welded.
Dental Gold Type IIChoose it when strength drives the design, or when surface hardness matters.
22K vs Dental Gold Type II: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all precious metal 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 precious metal 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
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Vickers
Hardness, Rockwell B
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
Same in both: Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) 0.25 V · Corrosion Resistance 97 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Polishability
Same in both: Brazeability / Solderability 95 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Same in both: Embodied Water 150,000 L/kg17,974 gal/lb
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 precious metal grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | 22K | Dental Gold Type II |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
22K vs Dental Gold Type II — frequently asked
Is Dental Gold Type II stronger than 22K?
Yes. Dental Gold Type II has a typical yield strength of 200 MPa (29 ksi) against 75 MPa (10.9 ksi) for 22K — about 167% more. Tensile strength is 380 MPa (55.1 ksi) vs 220 MPa (31.9 ksi).
Which is cheaper, 22K or Dental Gold Type II?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, 22K or Dental Gold Type II?
Dental Gold Type II. Its machinability rates good (65/100) against fair (50/100) for 22K; for welding the order is 22K first (excellent, 85/100) then Dental Gold Type II (very good, 75/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in 22K and Dental Gold Type II 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.