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Precious Metal BAg-2a vs BVAg-8

Precious Metal · grade comparison

Precious Metal BAg-2a and BVAg-8 are both precious metal grades. BAg-2a is the stronger of the two: yield strength 210 MPa (30.5 ksi) against 120 MPa (17.4 ksi) for BVAg-8, about 75% more; tensile strength follows at 400 MPa (58 ksi) vs 275 MPa (39.9 ksi). BAg-2a is the more ductile: elongation 28% versus 25% for BVAg-8, and BAg-2a is harder (85 HB vs 60 HB). BAg-2a is lighter (9.4 g/cm³ vs 9.9 g/cm³ for BVAg-8) and BAg-2a is stiffer (90 GPa vs 85 GPa). On the shop floor, BAg-2a machines more easily (45 vs 35 out of 100).

BAg-2aChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

BVAg-8Choose it when the part sees heat.

BAg-2a vs BVAg-8: properties

BAg-2aBVAg-8

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

90 GPa13.1 Msi
85 GPa12.3 Msi

Shear Modulus

33 GPa4.8 Msi
31 GPa4.5 Msi

Bulk Modulus

95 GPa13.8 Msi
108 GPa15.7 Msi

Tensile Strength (Ultimate)

400 MPa58 ksi
275 MPa39.9 ksi

Yield Strength (0.2% offset)

210 MPa30.5 ksi
120 MPa17.4 ksi

Elongation at Break

28%
25%

Hardness, Brinell

85 HB
60 HB

Hardness, Vickers

95 HV
65 HV

Same in both: Poisson's Ratio 0.36 · Shear Strength 175 MPa25.4 ksi

Physical

Density and transition temperatures.

Density

9.4 g/cm³0.34 lb/in³
9.9 g/cm³0.36 lb/in³

Melting Point (Solidus)

607°C1,125 °F
780°C1,436 °F

Liquidus Temperature

710°C1,310 °F
780°C1,436 °F

Thermal

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

Thermal Conductivity

75 W/m·K43.3 BTU/hr·ft·°F
350 W/m·K202 BTU/hr·ft·°F

Specific Heat Capacity

280 J/kg·K0.07 BTU/lb·°F
250 J/kg·K0.06 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

19 µm/m·K10.6 µin/in·°F
19.7 µm/m·K10.9 µin/in·°F

Latent Heat of Fusion

120 J/g51.6 BTU/lb
135 J/g58 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
370°C698 °F

Min Service Temperature

-196°C-321 °F
-269°C-452 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

20 % IACS
87 % IACS

Electrical Resistivity

8.6×10⁻⁸ Ω·m3.39 µΩ·in
1.98×10⁻⁸ Ω·m0.78 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.05 V
0 V

Corrosion Resistance

62 / 100
72 / 100

Manufacturability

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

Machinability

45 / 100
35 / 100

Weldability

20 / 100
—

Formability (cold)

80 / 100
88 / 100

Castability

75 / 100
85 / 100

Brazeability / Solderability

95 / 100
98 / 100

Polishability

70 / 100
85 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

600 MJ/kg257,954 BTU/lb
1,200 MJ/kg515,908 BTU/lb

Embodied Carbon (primary production)

45 kg CO₂/kg
110 kg CO₂/kg

Embodied Water

2,500 L/kg300 gal/lb
1,600 L/kg192 gal/lb

Typical Recycled Content

45%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

43 kN·m/kg
28 kN·m/kg

Specific Stiffness (E / density)

9.6 MN·m/kg
8.6 MN·m/kg

Modulus of Resilience

245 kJ/m³
85 kJ/m³

Thermal Diffusivity

28.5 mm²/s
141.4 mm²/s

Thermal Shock Resistance Index

18
57

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-2aBVAg-8

Manufacturing and finishing

CapabilityBAg-2aBVAg-8
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

BAg-2a vs BVAg-8 — frequently asked

Is BAg-2a stronger than BVAg-8?

Yes. BAg-2a has a typical yield strength of 210 MPa (30.5 ksi) against 120 MPa (17.4 ksi) for BVAg-8 — about 75% more. Tensile strength is 400 MPa (58 ksi) vs 275 MPa (39.9 ksi).

Which is cheaper, BAg-2a or BVAg-8?

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-2a or BVAg-8?

BAg-2a, by a small margin. Both rate fair for machinability — 45/100 against 35/100 for BVAg-8.

Ready to make it?

Upload a CAD file and FabDigit prices the part in BAg-2a and BVAg-8 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.