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Precious Metal AgSnO2In2O3 vs AuCo5

Precious Metal · grade comparison

Precious Metal AgSnO2In2O3 and AuCo5 are both precious metal grades. AuCo5 is the stronger of the two: yield strength 650 MPa (94.3 ksi) against 205 MPa (29.7 ksi) for AgSnO2In2O3, about 3.2 times as much; tensile strength follows at 750 MPa (109 ksi) vs 280 MPa (40.6 ksi). In exchange, AgSnO2In2O3 is the more ductile: elongation 9% versus 3% for AuCo5, and AuCo5 is harder (200 HV vs 95 HV). AgSnO2In2O3 is lighter (9.95 g/cm³ vs 18.2 g/cm³ for AuCo5) and AuCo5 is stiffer (95 GPa vs 88 GPa). On the shop floor, AuCo5 welds better (very good vs poor).

AgSnO2In2O3Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

AuCo5Choose it when strength drives the design, or when it will be welded.

AgSnO2In2O3 vs AuCo5: properties

AgSnO2In2O3AuCo5

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

88 GPa12.8 Msi
95 GPa13.8 Msi

Shear Modulus

32 GPa4.6 Msi
35 GPa5.1 Msi

Bulk Modulus

104 GPa15.1 Msi
165 GPa23.9 Msi

Poisson's Ratio

0.37
0.41

Tensile Strength (Ultimate)

280 MPa40.6 ksi
750 MPa109 ksi

Yield Strength (0.2% offset)

205 MPa29.7 ksi
650 MPa94.3 ksi

Elongation at Break

9%
3%

Shear Strength

175 MPa25.4 ksi
430 MPa62.4 ksi

Hardness, Brinell

90 HB
—

Hardness, Vickers

95 HV
200 HV

Fatigue Strength (Endurance Limit)

—
300 MPa43.5 ksi

Physical

Density and transition temperatures.

Density

9.95 g/cm³0.36 lb/in³
18.2 g/cm³0.66 lb/in³

Melting Point (Solidus)

960°C1,760 °F
996°C1,825 °F

Liquidus Temperature

962°C1,764 °F
1,025°C1,877 °F

Thermal

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

Thermal Conductivity

320 W/m·K185 BTU/hr·ft·°F
65 W/m·K37.6 BTU/hr·ft·°F

Specific Heat Capacity

240 J/kg·K0.06 BTU/lb·°F
140 J/kg·K0.03 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

17.5 µm/m·K9.7 µin/in·°F
14.3 µm/m·K7.9 µin/in·°F

Latent Heat of Fusion

95 J/g40.8 BTU/lb
70 J/g30.1 BTU/lb

Max Service Temperature (continuous)

250°C482 °F
200°C392 °F

Min Service Temperature

-60°C-76 °F
-269°C-452 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

66 % IACS
14 % IACS

Electrical Resistivity

2.61×10⁻⁸ Ω·m1.03 µΩ·in
1.2×10⁻⁷ Ω·m4.72 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

0.1 V
0.25 V

Corrosion Resistance

85 / 100
92 / 100

Manufacturability

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

Machinability

40 / 100
45 / 100

Weldability

30 / 100
70 / 100

Formability (cold)

45 / 100
25 / 100

Brazeability / Solderability

55 / 100
90 / 100

Polishability

60 / 100
95 / 100

Machinability Rating (AISI 1212 = 100 %)

—
30%

Castability

—
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

1,500 MJ/kg644,885 BTU/lb
180,000 MJ/kg7.74×10⁷ BTU/lb

Embodied Carbon (primary production)

130 kg CO₂/kg
12,000 kg CO₂/kg

Embodied Water

25,000 L/kg2,996 gal/lb
150,000 L/kg17,974 gal/lb

Typical Recycled Content

40%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

28 kN·m/kg
41 kN·m/kg

Specific Stiffness (E / density)

8.8 MN·m/kg
5.2 MN·m/kg

Modulus of Resilience

239 kJ/m³
2,224 kJ/m³

Thermal Diffusivity

134 mm²/s
25.5 mm²/s

Thermal Shock Resistance Index

58
36

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 scaleAgSnO2In2O3AuCo5

Manufacturing and finishing

CapabilityAgSnO2In2O3AuCo5
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

AgSnO2In2O3 vs AuCo5 — frequently asked

Is AuCo5 stronger than AgSnO2In2O3?

Yes. AuCo5 has a typical yield strength of 650 MPa (94.3 ksi) against 205 MPa (29.7 ksi) for AgSnO2In2O3 — about 3.2 times as much. Tensile strength is 750 MPa (109 ksi) vs 280 MPa (40.6 ksi).

Which is cheaper, AgSnO2In2O3 or AuCo5?

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, AgSnO2In2O3 or AuCo5?

AuCo5, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for AgSnO2In2O3; for welding the order is AuCo5 first (very good, 70/100) then AgSnO2In2O3 (poor, 30/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in AgSnO2In2O3 and AuCo5 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.