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Precious Metal BAg-1 vs BAg-27

Precious Metal · grade comparison

Precious Metal BAg-1 and BAg-27 are both precious metal grades. BAg-27 is the stronger of the two: yield strength 250 MPa (36.3 ksi) against 200 MPa (29 ksi) for BAg-1, about 25% more. BAg-27 is the more ductile: elongation 25% versus 21% for BAg-1. BAg-27 is lighter (9 g/cm³ vs 9.3 g/cm³ for BAg-1) and BAg-1 conducts heat better (100 W/m·K vs 75 W/m·K).

BAg-27Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

BAg-1 vs BAg-27: properties

BAg-1BAg-27

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

83 GPa12 Msi
85 GPa12.3 Msi

Shear Modulus

31 GPa4.5 Msi
32 GPa4.6 Msi

Tensile Strength (Ultimate)

414 MPa60 ksi
400 MPa58 ksi

Yield Strength (0.2% offset)

200 MPa29 ksi
250 MPa36.3 ksi

Elongation at Break

21%
25%

Shear Strength

170 MPa24.7 ksi
190 MPa27.6 ksi

Hardness, Rockwell B

56 HRB
55 HRB

Bulk Modulus

—
105 GPa15.2 Msi

Same in both: Poisson's Ratio 0.36 · Hardness, Brinell 90 HB · Hardness, Vickers 95 HV

Physical

Density and transition temperatures.

Density

9.3 g/cm³0.34 lb/in³
9 g/cm³0.33 lb/in³

Melting Point (Solidus)

607°C1,125 °F
605°C1,121 °F

Liquidus Temperature

618°C1,144 °F
745°C1,373 °F

Thermal

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

Thermal Conductivity

100 W/m·K57.8 BTU/hr·ft·°F
75 W/m·K43.3 BTU/hr·ft·°F

Specific Heat Capacity

280 J/kg·K0.07 BTU/lb·°F
330 J/kg·K0.08 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

110 J/g47.3 BTU/lb
135 J/g58 BTU/lb

Same in both: Max Service Temperature (continuous) 200°C392 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

22 % IACS
19 % IACS

Electrical Resistivity

7.8×10⁻⁸ Ω·m3.07 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
-0.12 V

Corrosion Resistance

65 / 100
55 / 100

Manufacturability

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

Machinability

40 / 100
45 / 100

Weldability

15 / 100
20 / 100

Formability (cold)

75 / 100
80 / 100

Castability

80 / 100
70 / 100

Brazeability / Solderability

98 / 100
95 / 100

Polishability

70 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

700 MJ/kg300,946 BTU/lb
440 MJ/kg189,166 BTU/lb

Embodied Carbon (primary production)

48 kg CO₂/kg
40 kg CO₂/kg

Embodied Water

15,000 L/kg1,797 gal/lb
1,500 L/kg180 gal/lb

Same in both: Typical Recycled Content 40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

45 kN·m/kg
44 kN·m/kg

Specific Stiffness (E / density)

8.9 MN·m/kg
9.4 MN·m/kg

Modulus of Resilience

241 kJ/m³
368 kJ/m³

Thermal Diffusivity

38.4 mm²/s
25.3 mm²/s

Thermal Shock Resistance Index

26
19

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-1BAg-27

Manufacturing and finishing

CapabilityBAg-1BAg-27
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

BAg-1 vs BAg-27 — frequently asked

Is BAg-27 stronger than BAg-1?

Yes. BAg-27 has a typical yield strength of 250 MPa (36.3 ksi) against 200 MPa (29 ksi) for BAg-1 — about 25% more. Tensile strength is 400 MPa (58 ksi) vs 414 MPa (60 ksi).

Which is cheaper, BAg-1 or BAg-27?

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-1 or BAg-27?

BAg-27, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for BAg-1; for welding the order is BAg-27 first (poor, 20/100) then BAg-1 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in BAg-1 and BAg-27 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.