Precious Metal BAg-13 vs BAg-13a
Precious Metal · grade comparison
Precious Metal BAg-13 and BAg-13a are both precious metal grades. BAg-13 is the stronger of the two: yield strength 250 MPa (36.3 ksi) against 210 MPa (30.5 ksi) for BAg-13a, about 19% more. BAg-13 is harder — 115 HB against 100 HB for BAg-13a — which matters for wear surfaces and threads. BAg-13a is stiffer (95 GPa vs 90 GPa) and BAg-13a conducts heat better (120 W/m·K vs 90 W/m·K). On the shop floor, BAg-13a forms better (80 vs 70 out of 100).
BAg-13Choose it when strength drives the design, or when surface hardness matters.
BAg-13 vs BAg-13a: 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
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Hardness, Brinell
Bulk Modulus
Hardness, Vickers
Same in both: Poisson's Ratio 0.36 · Tensile Strength (Ultimate) 420 MPa60.9 ksi
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 -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.
Formability (cold)
Castability
Polishability
Machinability
Weldability
Same in both: Brazeability / Solderability 95 / 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
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 | BAg-13 | BAg-13a |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
BAg-13 vs BAg-13a — frequently asked
Is BAg-13 stronger than BAg-13a?
Yes. BAg-13 has a typical yield strength of 250 MPa (36.3 ksi) against 210 MPa (30.5 ksi) for BAg-13a — about 19% more. Tensile strength is 420 MPa (60.9 ksi) vs 420 MPa (60.9 ksi).
Which is cheaper, BAg-13 or BAg-13a?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose BAg-13 over BAg-13a?
Pick BAg-13 when strength drives the design, or when surface hardness matters.
Ready to make it?
Upload a CAD file and FabDigit prices the part in BAg-13 and BAg-13a 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.