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Precious Metal BAg-2a vs BAg-34

Precious Metal · grade comparison

Precious Metal BAg-2a and BAg-34 are both precious metal grades. BAg-34 is the stronger of the two: yield strength 250 MPa (36.3 ksi) against 210 MPa (30.5 ksi) for BAg-2a, about 19% more; tensile strength follows at 430 MPa (62.4 ksi) vs 400 MPa (58 ksi). In exchange, BAg-2a is the more ductile: elongation 28% versus 25% for BAg-34, and BAg-34 is harder (100 HB vs 85 HB). BAg-34 is lighter (9 g/cm³ vs 9.4 g/cm³ for BAg-2a) and BAg-2a is stiffer (90 GPa vs 85 GPa).

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

BAg-34Choose it when strength drives the design, or when weight is the constraint.

BAg-2a vs BAg-34: properties

BAg-2aBAg-34

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
32 GPa4.6 Msi

Bulk Modulus

95 GPa13.8 Msi
—

Poisson's Ratio

0.36
0.35

Tensile Strength (Ultimate)

400 MPa58 ksi
430 MPa62.4 ksi

Yield Strength (0.2% offset)

210 MPa30.5 ksi
250 MPa36.3 ksi

Elongation at Break

28%
25%

Shear Strength

175 MPa25.4 ksi
260 MPa37.7 ksi

Hardness, Brinell

85 HB
100 HB

Hardness, Vickers

95 HV
110 HV

Physical

Density and transition temperatures.

Density

9.4 g/cm³0.34 lb/in³
9 g/cm³0.33 lb/in³

Melting Point (Solidus)

607°C1,125 °F
649°C1,200 °F

Liquidus Temperature

710°C1,310 °F
721°C1,330 °F

Thermal

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

Thermal Conductivity

75 W/m·K43.3 BTU/hr·ft·°F
85 W/m·K49.1 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

19 µm/m·K10.6 µin/in·°F
18.5 µm/m·K10.3 µin/in·°F

Latent Heat of Fusion

120 J/g51.6 BTU/lb
145 J/g62.3 BTU/lb

Same in both: Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 20 % IACS · Electrical Resistivity 8.6×10⁻⁸ Ω·m3.39 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.05 V
-0.1 V

Corrosion Resistance

62 / 100
55 / 100

Manufacturability

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

Machinability

45 / 100
40 / 100

Castability

75 / 100
70 / 100

Brazeability / Solderability

95 / 100
90 / 100

Polishability

70 / 100
60 / 100

Same in both: Weldability 20 / 100 · Formability (cold) 80 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

45 kg CO₂/kg
50 kg CO₂/kg

Embodied Water

2,500 L/kg300 gal/lb
900 L/kg108 gal/lb

Same in both: Typical Recycled Content 45%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

43 kN·m/kg
48 kN·m/kg

Specific Stiffness (E / density)

9.6 MN·m/kg
9.4 MN·m/kg

Modulus of Resilience

245 kJ/m³
368 kJ/m³

Thermal Diffusivity

28.5 mm²/s
31.5 mm²/s

Thermal Shock Resistance Index

18
23

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-2aBAg-34

Manufacturing and finishing

CapabilityBAg-2aBAg-34
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

BAg-2a vs BAg-34 — frequently asked

Is BAg-34 stronger than BAg-2a?

Yes. BAg-34 has a typical yield strength of 250 MPa (36.3 ksi) against 210 MPa (30.5 ksi) for BAg-2a — about 19% more. Tensile strength is 430 MPa (62.4 ksi) vs 400 MPa (58 ksi).

Which is cheaper, BAg-2a or BAg-34?

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 BAg-34?

BAg-2a, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for BAg-34.

Ready to make it?

Upload a CAD file and FabDigit prices the part in BAg-2a and BAg-34 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.