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Precious Metal Ag120 vs BAg-13a

Precious Metal · grade comparison

Precious Metal Ag120 and BAg-13a 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-13a, about 43% more. Ag120 is harder — 115 HB against 100 HB for BAg-13a — which matters for wear surfaces and threads. Ag120 is lighter (8.6 g/cm³ vs 9.75 g/cm³ for BAg-13a) and BAg-13a runs hotter in service (400°C vs 200°C continuous). On the shop floor, BAg-13a machines more easily (good vs fair) and BAg-13a forms better (very good vs good).

Ag120Choose it when strength drives the design, or when surface hardness matters.

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

Ag120 vs BAg-13a: properties

Ag120BAg-13a

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

92 GPa13.3 Msi
95 GPa13.8 Msi

Bulk Modulus

100 GPa14.5 Msi
110 GPa16 Msi

Poisson's Ratio

0.35
0.36

Yield Strength (0.2% offset)

300 MPa43.5 ksi
210 MPa30.5 ksi

Elongation at Break

20%
22%

Compressive Strength

500 MPa72.5 ksi
—

Shear Strength

240 MPa34.8 ksi
210 MPa30.5 ksi

Hardness, Brinell

115 HB
100 HB

Hardness, Vickers

120 HV
105 HV

Same in both: Shear Modulus 35 GPa5.1 Msi · Tensile Strength (Ultimate) 420 MPa60.9 ksi

Physical

Density and transition temperatures.

Density

8.6 g/cm³0.31 lb/in³
9.75 g/cm³0.35 lb/in³

Melting Point (Solidus)

690°C1,274 °F
771°C1,420 °F

Liquidus Temperature

810°C1,490 °F
893°C1,639 °F

Thermal

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

Thermal Conductivity

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

Specific Heat Capacity

380 J/kg·K0.09 BTU/lb·°F
255 J/kg·K0.06 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

150 J/g64.5 BTU/lb
140 J/g60.2 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
400°C752 °F

Min Service Temperature

-70°C-94 °F
-196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

12 % IACS
30 % IACS

Electrical Resistivity

1.4×10⁻⁷ Ω·m5.51 µΩ·in
5.7×10⁻⁸ Ω·m2.24 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
65 / 100

Manufacturability

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

Machinability

45 / 100
55 / 100

Formability (cold)

55 / 100
80 / 100

Brazeability / Solderability

65 / 100
95 / 100

Polishability

60 / 100
75 / 100

Weldability

—
20 / 100

Castability

—
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

350 MJ/kg150,473 BTU/lb
900 MJ/kg386,931 BTU/lb

Embodied Carbon (primary production)

25 kg CO₂/kg
110 kg CO₂/kg

Embodied Water

800 L/kg95.9 gal/lb
1,500 L/kg180 gal/lb

Typical Recycled Content

45%
60%

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
9.7 MN·m/kg

Modulus of Resilience

489 kJ/m³
232 kJ/m³

Thermal Diffusivity

22.9 mm²/s
48.3 mm²/s

Thermal Shock Resistance Index

18
29

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-13aAg120

Manufacturing and finishing

CapabilityAg120BAg-13a
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Ag120 vs BAg-13a — frequently asked

Is Ag120 stronger than BAg-13a?

Yes. Ag120 has a typical yield strength of 300 MPa (43.5 ksi) against 210 MPa (30.5 ksi) for BAg-13a — about 43% more. Tensile strength is 420 MPa (60.9 ksi) vs 420 MPa (60.9 ksi).

Which is cheaper, Ag120 or BAg-13a?

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, Ag120 or BAg-13a?

BAg-13a. Its machinability rates good (55/100) against fair (45/100) for Ag120.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Ag120 and BAg-13a 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.