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Precious Metal BAg-13a vs BAg-2a

Precious Metal · grade comparison

Precious Metal BAg-13a and BAg-2a are both precious metal grades. Both yield at about 210 MPa — strength does not separate them. BAg-2a is the more ductile: elongation 28% versus 22% for BAg-13a, and BAg-13a is harder (100 HB vs 85 HB). BAg-2a is lighter (9.4 g/cm³ vs 9.75 g/cm³ for BAg-13a) and BAg-13a is stiffer (95 GPa vs 90 GPa). On the shop floor, BAg-13a machines more easily (good vs fair).

BAg-13aChoose it when the part sees heat, or when the part is machined in volume.

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

BAg-13a vs BAg-2a: properties

BAg-13aBAg-2a

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

95 GPa13.8 Msi
90 GPa13.1 Msi

Shear Modulus

35 GPa5.1 Msi
33 GPa4.8 Msi

Bulk Modulus

110 GPa16 Msi
95 GPa13.8 Msi

Tensile Strength (Ultimate)

420 MPa60.9 ksi
400 MPa58 ksi

Elongation at Break

22%
28%

Shear Strength

210 MPa30.5 ksi
175 MPa25.4 ksi

Hardness, Brinell

100 HB
85 HB

Hardness, Vickers

105 HV
95 HV

Same in both: Poisson's Ratio 0.36 · Yield Strength (0.2% offset) 210 MPa30.5 ksi

Physical

Density and transition temperatures.

Density

9.75 g/cm³0.35 lb/in³
9.4 g/cm³0.34 lb/in³

Melting Point (Solidus)

771°C1,420 °F
607°C1,125 °F

Liquidus Temperature

893°C1,639 °F
710°C1,310 °F

Thermal

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

Thermal Conductivity

120 W/m·K69.3 BTU/hr·ft·°F
75 W/m·K43.3 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

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

Latent Heat of Fusion

140 J/g60.2 BTU/lb
120 J/g51.6 BTU/lb

Max Service Temperature (continuous)

400°C752 °F
200°C392 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

30 % IACS
20 % IACS

Electrical Resistivity

5.7×10⁻⁸ Ω·m2.24 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)

0.05 V
-0.05 V

Corrosion Resistance

65 / 100
62 / 100

Manufacturability

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

Machinability

55 / 100
45 / 100

Castability

70 / 100
75 / 100

Polishability

75 / 100
70 / 100

Same in both: Weldability 20 / 100 · Formability (cold) 80 / 100 · Brazeability / Solderability 95 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

900 MJ/kg386,931 BTU/lb
600 MJ/kg257,954 BTU/lb

Embodied Carbon (primary production)

110 kg CO₂/kg
45 kg CO₂/kg

Embodied Water

1,500 L/kg180 gal/lb
2,500 L/kg300 gal/lb

Typical Recycled Content

60%
45%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

9.7 MN·m/kg
9.6 MN·m/kg

Modulus of Resilience

232 kJ/m³
245 kJ/m³

Thermal Diffusivity

48.3 mm²/s
28.5 mm²/s

Thermal Shock Resistance Index

29
18

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-13a

Manufacturing and finishing

CapabilityBAg-13aBAg-2a
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

BAg-13a vs BAg-2a — frequently asked

What is the difference between BAg-13a and BAg-2a?

Precious Metal BAg-13a and BAg-2a are both precious metal grades. Both yield at about 210 MPa — strength does not separate them. BAg-2a is the more ductile: elongation 28% versus 22% for BAg-13a, and BAg-13a is harder (100 HB vs 85 HB).

Which is cheaper, BAg-13a 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-13a or BAg-2a?

BAg-13a. 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-13a 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.