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Precious Metal BAg-2a vs BAg-33

Precious Metal · grade comparison

Precious Metal BAg-2a and BAg-33 are both precious metal grades. BAg-33 is the stronger of the two: yield strength 240 MPa (34.8 ksi) against 210 MPa (30.5 ksi) for BAg-2a, about 14% more. In exchange, BAg-2a is the more ductile: elongation 28% versus 22% for BAg-33, and BAg-33 is harder (105 HB vs 85 HB). BAg-2a is stiffer (90 GPa vs 85 GPa) and BAg-33 runs hotter in service (250°C vs 200°C continuous).

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

BAg-33Choose it when strength drives the design, or when the part sees heat.

BAg-2a vs BAg-33: properties

BAg-2aBAg-33

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
0.34

Yield Strength (0.2% offset)

210 MPa30.5 ksi
240 MPa34.8 ksi

Elongation at Break

28%
22%

Shear Strength

175 MPa25.4 ksi
200 MPa29 ksi

Hardness, Brinell

85 HB
105 HB

Hardness, Vickers

95 HV
115 HV

Same in both: Tensile Strength (Ultimate) 400 MPa58 ksi

Physical

Density and transition temperatures.

Density

9.4 g/cm³0.34 lb/in³
9.3 g/cm³0.34 lb/in³

Liquidus Temperature

710°C1,310 °F
682°C1,260 °F

Same in both: Melting Point (Solidus) 607°C1,125 °F

Thermal

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

Thermal Conductivity

75 W/m·K43.3 BTU/hr·ft·°F
80 W/m·K46.2 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
130 J/g55.9 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
250°C482 °F

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

20 % IACS
19 % IACS

Electrical Resistivity

8.6×10⁻⁸ Ω·m3.39 µΩ·in
9.1×10⁻⁸ Ω·m3.58 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.05 V
-0.08 V

Corrosion Resistance

62 / 100
52 / 100

Manufacturability

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

Weldability

20 / 100
—

Formability (cold)

80 / 100
70 / 100

Castability

75 / 100
85 / 100

Brazeability / Solderability

95 / 100
96 / 100

Same in both: Machinability 45 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

600 MJ/kg257,954 BTU/lb
420 MJ/kg180,568 BTU/lb

Embodied Carbon (primary production)

45 kg CO₂/kg
35 kg CO₂/kg

Embodied Water

2,500 L/kg300 gal/lb
—

Typical Recycled Content

45%
40%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

9.6 MN·m/kg
9.1 MN·m/kg

Modulus of Resilience

245 kJ/m³
339 kJ/m³

Thermal Diffusivity

28.5 mm²/s
28.7 mm²/s

Thermal Shock Resistance Index

18
20

Same in both: Specific Strength (UTS / density) 43 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-2aBAg-33

Manufacturing and finishing

CapabilityBAg-2aBAg-33
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

BAg-2a vs BAg-33 — frequently asked

Is BAg-33 stronger than BAg-2a?

Yes. BAg-33 has a typical yield strength of 240 MPa (34.8 ksi) against 210 MPa (30.5 ksi) for BAg-2a — about 14% more. Tensile strength is 400 MPa (58 ksi) vs 400 MPa (58 ksi).

Which is cheaper, BAg-2a or BAg-33?

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-2a over BAg-33?

Pick BAg-2a when the part is bent, formed or impact-loaded. Pick BAg-33 when strength drives the design, or when the part sees heat.

Ready to make it?

Upload a CAD file and FabDigit prices the part in BAg-2a and BAg-33 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.