Precious Metal BAg-28 vs BAg-2a
Precious Metal · grade comparison
Precious Metal BAg-28 and BAg-2a are both precious metal grades. Both yield at about 200 MPa — strength does not separate them. BAg-28 is harder — 90 HB against 85 HB for BAg-2a — which matters for wear surfaces and threads. BAg-2a conducts electricity better (20 % IACS vs 18 % IACS).
BAg-28Choose it when surface hardness matters.
BAg-28 vs BAg-2a: 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.
Shear Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Shear Strength
Hardness, Brinell
Bulk Modulus
Same in both: Elastic (Young's) Modulus 90 GPa13.1 Msi · Elongation at Break 28% · Hardness, Vickers 95 HV
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Same in both: Liquidus Temperature 710°C1,310 °F
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) 200°C392 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Galvanic Potential (seawater, vs SCE)
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Weldability
Castability
Same in both: Machinability 45 / 100 · Formability (cold) 80 / 100 · Brazeability / Solderability 95 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Embodied Water
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Same in both: Thermal Shock Resistance Index 18
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 | BAg-28 | BAg-2a |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
BAg-28 vs BAg-2a — frequently asked
What is the difference between BAg-28 and BAg-2a?
Precious Metal BAg-28 and BAg-2a are both precious metal grades. Both yield at about 200 MPa — strength does not separate them. BAg-28 is harder — 90 HB against 85 HB for BAg-2a — which matters for wear surfaces and threads.
Which is cheaper, BAg-28 or BAg-2a?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose BAg-28 over BAg-2a?
Pick BAg-28 when surface hardness matters.
Ready to make it?
Upload a CAD file and FabDigit prices the part in BAg-28 and BAg-2a 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.