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Precious Metal BAg-13a vs BAg-19

Precious Metal · grade comparison

Precious Metal BAg-13a and BAg-19 are both precious metal grades. BAg-13a is the stronger of the two: yield strength 210 MPa (30.5 ksi) against 120 MPa (17.4 ksi) for BAg-19, about 75% more; tensile strength follows at 420 MPa (60.9 ksi) vs 290 MPa (42.1 ksi). In exchange, BAg-19 is the more ductile: elongation 30% versus 22% for BAg-13a, and BAg-13a is harder (100 HB vs 62 HB). BAg-13a is lighter (9.75 g/cm³ vs 10.35 g/cm³ for BAg-19) and BAg-13a is stiffer (95 GPa vs 78 GPa). On the shop floor, BAg-13a machines more easily (good vs fair).

BAg-13aChoose it when strength drives the design, or when weight is the constraint.

BAg-19Choose it when the part is bent, formed or impact-loaded.

BAg-13a vs BAg-19: properties

BAg-13aBAg-19

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

95 GPa13.8 Msi
78 GPa11.3 Msi

Shear Modulus

35 GPa5.1 Msi
29 GPa4.2 Msi

Bulk Modulus

110 GPa16 Msi
100 GPa14.5 Msi

Poisson's Ratio

0.36
0.37

Tensile Strength (Ultimate)

420 MPa60.9 ksi
290 MPa42.1 ksi

Yield Strength (0.2% offset)

210 MPa30.5 ksi
120 MPa17.4 ksi

Elongation at Break

22%
30%

Shear Strength

210 MPa30.5 ksi
190 MPa27.6 ksi

Hardness, Brinell

100 HB
62 HB

Hardness, Vickers

105 HV
65 HV

Physical

Density and transition temperatures.

Density

9.75 g/cm³0.35 lb/in³
10.35 g/cm³0.37 lb/in³

Melting Point (Solidus)

771°C1,420 °F
760°C1,400 °F

Liquidus Temperature

893°C1,639 °F
891°C1,636 °F

Thermal

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

Thermal Conductivity

120 W/m·K69.3 BTU/hr·ft·°F
350 W/m·K202 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

18.5 µm/m·K10.3 µin/in·°F
18.9 µm/m·K10.5 µin/in·°F

Latent Heat of Fusion

140 J/g60.2 BTU/lb
105 J/g45.1 BTU/lb

Same in both: Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

30 % IACS
85 % IACS

Electrical Resistivity

5.7×10⁻⁸ Ω·m2.24 µΩ·in
2.03×10⁻⁸ Ω·m0.799 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

65 / 100
85 / 100

Same in both: Galvanic Potential (seawater, vs SCE) 0.05 V

Manufacturability

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

Machinability

55 / 100
45 / 100

Weldability

20 / 100
—

Formability (cold)

80 / 100
90 / 100

Castability

70 / 100
75 / 100

Brazeability / Solderability

95 / 100
98 / 100

Polishability

75 / 100
90 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

900 MJ/kg386,931 BTU/lb
1,450 MJ/kg623,388 BTU/lb

Embodied Carbon (primary production)

110 kg CO₂/kg
100 kg CO₂/kg

Embodied Water

1,500 L/kg180 gal/lb
—

Typical Recycled Content

60%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

43 kN·m/kg
28 kN·m/kg

Specific Stiffness (E / density)

9.7 MN·m/kg
7.5 MN·m/kg

Modulus of Resilience

232 kJ/m³
92 kJ/m³

Thermal Diffusivity

48.3 mm²/s
140.9 mm²/s

Thermal Shock Resistance Index

29
69

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-13aBAg-19

Manufacturing and finishing

CapabilityBAg-13aBAg-19
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

BAg-13a vs BAg-19 — frequently asked

Is BAg-13a stronger than BAg-19?

Yes. BAg-13a has a typical yield strength of 210 MPa (30.5 ksi) against 120 MPa (17.4 ksi) for BAg-19 — about 75% more. Tensile strength is 420 MPa (60.9 ksi) vs 290 MPa (42.1 ksi).

Which is cheaper, BAg-13a or BAg-19?

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-19?

BAg-13a. Its machinability rates good (55/100) against fair (45/100) for BAg-19.

Ready to make it?

Upload a CAD file and FabDigit prices the part in BAg-13a and BAg-19 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.