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Precious Metal Ag120 vs BAg-2a

Precious Metal · grade comparison

Precious Metal Ag120 and BAg-2a are both precious metal grades. Ag120 is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 210 MPa (30.5 ksi) for BAg-2a, about 43% more. In exchange, BAg-2a is the more ductile: elongation 28% versus 20% for Ag120, and Ag120 is harder (115 HB vs 85 HB). Ag120 is lighter (8.6 g/cm³ vs 9.4 g/cm³ for BAg-2a) and BAg-2a conducts electricity better (20 % IACS vs 12 % IACS).

Ag120Choose it when strength drives the design, or when weight is the constraint.

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

Ag120 vs BAg-2a: properties

Ag120BAg-2a

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

92 GPa13.3 Msi
90 GPa13.1 Msi

Shear Modulus

35 GPa5.1 Msi
33 GPa4.8 Msi

Bulk Modulus

100 GPa14.5 Msi
95 GPa13.8 Msi

Poisson's Ratio

0.35
0.36

Tensile Strength (Ultimate)

420 MPa60.9 ksi
400 MPa58 ksi

Yield Strength (0.2% offset)

300 MPa43.5 ksi
210 MPa30.5 ksi

Elongation at Break

20%
28%

Compressive Strength

500 MPa72.5 ksi
—

Shear Strength

240 MPa34.8 ksi
175 MPa25.4 ksi

Hardness, Brinell

115 HB
85 HB

Hardness, Vickers

120 HV
95 HV

Physical

Density and transition temperatures.

Density

8.6 g/cm³0.31 lb/in³
9.4 g/cm³0.34 lb/in³

Melting Point (Solidus)

690°C1,274 °F
607°C1,125 °F

Liquidus Temperature

810°C1,490 °F
710°C1,310 °F

Thermal

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

Specific Heat Capacity

380 J/kg·K0.09 BTU/lb·°F
280 J/kg·K0.07 BTU/lb·°F

Latent Heat of Fusion

150 J/g64.5 BTU/lb
120 J/g51.6 BTU/lb

Min Service Temperature

-70°C-94 °F
-196°C-321 °F

Same in both: Thermal Conductivity 75 W/m·K43.3 BTU/hr·ft·°F · Thermal Expansion (CTE, 20–100 °C) 19 µm/m·K10.6 µin/in·°F · Max Service Temperature (continuous) 200°C392 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

12 % IACS
20 % IACS

Electrical Resistivity

1.4×10⁻⁷ Ω·m5.51 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)

-0.25 V
-0.05 V

Corrosion Resistance

45 / 100
62 / 100

Manufacturability

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

Formability (cold)

55 / 100
80 / 100

Brazeability / Solderability

65 / 100
95 / 100

Polishability

60 / 100
70 / 100

Weldability

—
20 / 100

Castability

—
75 / 100

Same in both: Machinability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

350 MJ/kg150,473 BTU/lb
600 MJ/kg257,954 BTU/lb

Embodied Carbon (primary production)

25 kg CO₂/kg
45 kg CO₂/kg

Embodied Water

800 L/kg95.9 gal/lb
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)

49 kN·m/kg
43 kN·m/kg

Specific Stiffness (E / density)

10.7 MN·m/kg
9.6 MN·m/kg

Modulus of Resilience

489 kJ/m³
245 kJ/m³

Thermal Diffusivity

22.9 mm²/s
28.5 mm²/s

Same in both: Thermal Shock Resistance Index 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-2aAg120

Manufacturing and finishing

CapabilityAg120BAg-2a
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Ag120 vs BAg-2a — frequently asked

Is Ag120 stronger than BAg-2a?

Yes. Ag120 has a typical yield strength of 300 MPa (43.5 ksi) against 210 MPa (30.5 ksi) for BAg-2a — about 43% more. Tensile strength is 420 MPa (60.9 ksi) vs 400 MPa (58 ksi).

Which is cheaper, Ag120 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.

When should I choose Ag120 over BAg-2a?

Pick Ag120 when strength drives the design, or when weight is the constraint. Pick BAg-2a when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Ag120 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.