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Precious Metal AgCu10 vs Coin Silver 900

Precious Metal · grade comparison

Precious Metal AgCu10 and Coin Silver 900 are both precious metal grades. AgCu10 is the stronger of the two: yield strength 115 MPa (16.7 ksi) against 100 MPa (14.5 ksi) for Coin Silver 900, about 15% more. In exchange, Coin Silver 900 is the more ductile: elongation 40% versus 35% for AgCu10, and Coin Silver 900 is harder (66 HB vs 60 HB). On the shop floor, AgCu10 machines more easily (good vs fair).

AgCu10Choose it when strength drives the design, or when the part is machined in volume.

Coin Silver 900Choose it when the part is bent, formed or impact-loaded.

AgCu10 vs Coin Silver 900: properties

AgCu10Coin Silver 900

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

285 MPa41.3 ksi
290 MPa42.1 ksi

Yield Strength (0.2% offset)

115 MPa16.7 ksi
100 MPa14.5 ksi

Elongation at Break

35%
40%

Shear Strength

175 MPa25.4 ksi
185 MPa26.8 ksi

Fatigue Strength (Endurance Limit)

105 MPa15.2 ksi
100 MPa14.5 ksi

Hardness, Brinell

60 HB
66 HB

Hardness, Vickers

62 HV
70 HV

Hardness, Rockwell B

—
30 HRB

Same in both: Elastic (Young's) Modulus 78 GPa11.3 Msi · Shear Modulus 29 GPa4.2 Msi · Bulk Modulus 103 GPa14.9 Msi · Poisson's Ratio 0.37

Physical

Density and transition temperatures.

Same in both: Density 10.31 g/cm³0.37 lb/in³ · Melting Point (Solidus) 779°C1,434 °F · Liquidus Temperature 875°C1,607 °F

Thermal

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

Thermal Conductivity

355 W/m·K205 BTU/hr·ft·°F
330 W/m·K191 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

19 µm/m·K10.6 µin/in·°F
18.9 µm/m·K10.5 µin/in·°F

Same in both: Latent Heat of Fusion 105 J/g45.1 BTU/lb · Max Service Temperature (continuous) 250°C482 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 85 % IACS · Electrical Resistivity 2.03×10⁻⁸ Ω·m0.799 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

0.12 V
0.1 V

Corrosion Resistance

78 / 100
70 / 100

Manufacturability

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

Machinability

55 / 100
40 / 100

Weldability

60 / 100
55 / 100

Formability (cold)

90 / 100
88 / 100

Castability

75 / 100
80 / 100

Machinability Rating (AISI 1212 = 100 %)

—
40%

Same in both: Brazeability / Solderability 95 / 100 · Polishability 95 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

1,400 MJ/kg601,892 BTU/lb
1,450 MJ/kg623,388 BTU/lb

Embodied Carbon (primary production)

95 kg CO₂/kg
100 kg CO₂/kg

Embodied Water

22,000 L/kg2,636 gal/lb
—

Typical Recycled Content

60%
40%

Common Calculations

Ratios derived from the values above.

Modulus of Resilience

85 kJ/m³
64 kJ/m³

Thermal Diffusivity

145.3 mm²/s
133.4 mm²/s

Thermal Shock Resistance Index

68
65

Same in both: Specific Strength (UTS / density) 28 kN·m/kg · Specific Stiffness (E / density) 7.6 MN·m/kg

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 scaleCoin Silver 900AgCu10

Manufacturing and finishing

CapabilityAgCu10Coin Silver 900
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

AgCu10 vs Coin Silver 900 — frequently asked

Is AgCu10 stronger than Coin Silver 900?

Yes. AgCu10 has a typical yield strength of 115 MPa (16.7 ksi) against 100 MPa (14.5 ksi) for Coin Silver 900 — about 15% more. Tensile strength is 285 MPa (41.3 ksi) vs 290 MPa (42.1 ksi).

Which is cheaper, AgCu10 or Coin Silver 900?

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, AgCu10 or Coin Silver 900?

AgCu10. Its machinability rates good (55/100) against fair (40/100) for Coin Silver 900; for welding the order is AgCu10 first (good, 60/100) then Coin Silver 900 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in AgCu10 and Coin Silver 900 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.