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Precious Metal BAg-1 vs BAg-1a

Precious Metal · grade comparison

Precious Metal BAg-1 and BAg-1a are both precious metal grades. BAg-1a is the stronger of the two: yield strength 220 MPa (31.9 ksi) against 200 MPa (29 ksi) for BAg-1, about 10% more. BAg-1a is the more ductile: elongation 28% versus 21% for BAg-1, and BAg-1a is harder (95 HB vs 90 HB). BAg-1 conducts heat better (100 W/m·K vs 90 W/m·K).

BAg-1aChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

BAg-1 vs BAg-1a: properties

BAg-1BAg-1a

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

83 GPa12 Msi
85 GPa12.3 Msi

Tensile Strength (Ultimate)

414 MPa60 ksi
415 MPa60.2 ksi

Yield Strength (0.2% offset)

200 MPa29 ksi
220 MPa31.9 ksi

Elongation at Break

21%
28%

Shear Strength

170 MPa24.7 ksi
200 MPa29 ksi

Hardness, Brinell

90 HB
95 HB

Hardness, Rockwell B

56 HRB
—

Hardness, Vickers

95 HV
100 HV

Bulk Modulus

—
101 GPa14.6 Msi

Same in both: Shear Modulus 31 GPa4.5 Msi · Poisson's Ratio 0.36

Physical

Density and transition temperatures.

Melting Point (Solidus)

607°C1,125 °F
627°C1,161 °F

Liquidus Temperature

618°C1,144 °F
635°C1,175 °F

Same in both: Density 9.3 g/cm³0.34 lb/in³

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

100 W/m·K57.8 BTU/hr·ft·°F
90 W/m·K52 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

19 µm/m·K10.6 µin/in·°F
19.5 µm/m·K10.8 µin/in·°F

Same in both: Specific Heat Capacity 280 J/kg·K0.07 BTU/lb·°F · Latent Heat of Fusion 110 J/g47.3 BTU/lb · Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

22 % IACS
21 % IACS

Electrical Resistivity

7.8×10⁻⁸ Ω·m3.07 µΩ·in
8.2×10⁻⁸ Ω·m3.23 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

65 / 100
60 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.05 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

40 / 100
45 / 100

Weldability

15 / 100
—

Castability

80 / 100
85 / 100

Same in both: Formability (cold) 75 / 100 · Brazeability / Solderability 98 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

700 MJ/kg300,946 BTU/lb
900 MJ/kg386,931 BTU/lb

Embodied Carbon (primary production)

48 kg CO₂/kg
65 kg CO₂/kg

Embodied Water

15,000 L/kg1,797 gal/lb
—

Same in both: Typical Recycled Content 40%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

8.9 MN·m/kg
9.1 MN·m/kg

Modulus of Resilience

241 kJ/m³
285 kJ/m³

Thermal Diffusivity

38.4 mm²/s
34.6 mm²/s

Thermal Shock Resistance Index

26
23

Same in both: Specific Strength (UTS / density) 45 kN·m/kg

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.

50100200500101520Density (g/cm³)Yield strength (MPa) — log scaleBAg-1BAg-1a

Manufacturing and finishing

CapabilityBAg-1BAg-1a
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

BAg-1 vs BAg-1a — frequently asked

Is BAg-1a stronger than BAg-1?

Yes. BAg-1a has a typical yield strength of 220 MPa (31.9 ksi) against 200 MPa (29 ksi) for BAg-1 — about 10% more. Tensile strength is 415 MPa (60.2 ksi) vs 414 MPa (60 ksi).

Which is cheaper, BAg-1 or BAg-1a?

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, BAg-1 or BAg-1a?

BAg-1a, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for BAg-1.

Ready to make it?

Upload a CAD file and FabDigit prices the part in BAg-1 and BAg-1a 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.