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Precious Metal BAg-2 vs BAg-2a

Precious Metal · grade comparison

Precious Metal BAg-2 and BAg-2a are both precious metal grades. BAg-2 is the stronger of the two: tensile strength 430 MPa (62.4 ksi) against 400 MPa (58 ksi) for BAg-2a, about 8% more. BAg-2a is harder — 95 HV against 90 HV for BAg-2 — which matters for wear surfaces and threads. BAg-2a is stiffer (90 GPa vs 83 GPa) and BAg-2 conducts heat better (100 W/m·K vs 75 W/m·K). On the shop floor, BAg-2 machines more easily (good vs fair).

BAg-2Choose it when strength drives the design, or when the part is machined in volume.

BAg-2aChoose it when surface hardness matters.

BAg-2 vs BAg-2a: properties

BAg-2BAg-2a

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

83 GPa12 Msi
90 GPa13.1 Msi

Shear Modulus

31 GPa4.5 Msi
33 GPa4.8 Msi

Tensile Strength (Ultimate)

430 MPa62.4 ksi
400 MPa58 ksi

Yield Strength (0.2% offset)

200 MPa29 ksi
210 MPa30.5 ksi

Shear Strength

250 MPa36.3 ksi
175 MPa25.4 ksi

Hardness, Vickers

90 HV
95 HV

Bulk Modulus

—
95 GPa13.8 Msi

Same in both: Poisson's Ratio 0.36 · Elongation at Break 28% · Hardness, Brinell 85 HB

Physical

Density and transition temperatures.

Liquidus Temperature

702°C1,296 °F
710°C1,310 °F

Same in both: Density 9.4 g/cm³0.34 lb/in³ · Melting Point (Solidus) 607°C1,125 °F

Thermal

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

Thermal Conductivity

100 W/m·K57.8 BTU/hr·ft·°F
75 W/m·K43.3 BTU/hr·ft·°F

Specific Heat Capacity

305 J/kg·K0.07 BTU/lb·°F
280 J/kg·K0.07 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

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

Min Service Temperature

-195°C-319 °F
-196°C-321 °F

Latent Heat of Fusion

—
120 J/g51.6 BTU/lb

Same in both: Max Service Temperature (continuous) 200°C392 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

21 % IACS
20 % IACS

Electrical Resistivity

8.2×10⁻⁸ Ω·m3.23 µΩ·in
8.6×10⁻⁸ Ω·m3.39 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.1 V
-0.05 V

Corrosion Resistance

58 / 100
62 / 100

Manufacturability

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

Machinability

55 / 100
45 / 100

Formability (cold)

85 / 100
80 / 100

Castability

80 / 100
75 / 100

Weldability

—
20 / 100

Same in both: Brazeability / Solderability 95 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

620 MJ/kg266,552 BTU/lb
600 MJ/kg257,954 BTU/lb

Embodied Carbon (primary production)

55 kg CO₂/kg
45 kg CO₂/kg

Embodied Water

—
2,500 L/kg300 gal/lb

Same in both: Typical Recycled Content 45%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

46 kN·m/kg
43 kN·m/kg

Specific Stiffness (E / density)

8.8 MN·m/kg
9.6 MN·m/kg

Modulus of Resilience

241 kJ/m³
245 kJ/m³

Thermal Diffusivity

34.9 mm²/s
28.5 mm²/s

Thermal Shock Resistance Index

27
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.

50100200500101520Density (g/cm³)Yield strength (MPa) — log scaleBAg-2BAg-2a

Manufacturing and finishing

CapabilityBAg-2BAg-2a
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

BAg-2 vs BAg-2a — frequently asked

Is BAg-2 stronger than BAg-2a?

Yes. BAg-2 has a typical tensile strength of 430 MPa (62.4 ksi) against 400 MPa (58 ksi) for BAg-2a — about 8% more.

Which is cheaper, BAg-2 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.

Which is easier to machine, BAg-2 or BAg-2a?

BAg-2. Its machinability rates good (55/100) against fair (45/100) for BAg-2a.

Ready to make it?

Upload a CAD file and FabDigit prices the part in BAg-2 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.