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Precious Metal 800 Silver vs Coin Silver 900

Precious Metal · grade comparison

Precious Metal 800 Silver and Coin Silver 900 are both precious metal grades. 800 Silver is the stronger of the two: yield strength 130 MPa (18.9 ksi) against 100 MPa (14.5 ksi) for Coin Silver 900, about 30% more. 800 Silver is harder — 75 HB against 66 HB for Coin Silver 900 — which matters for wear surfaces and threads. On the shop floor, 800 Silver welds better (very good vs good).

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

800 Silver vs Coin Silver 900: properties

800 SilverCoin Silver 900

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

79 GPa11.5 Msi
78 GPa11.3 Msi

Bulk Modulus

104 GPa15.1 Msi
103 GPa14.9 Msi

Tensile Strength (Ultimate)

300 MPa43.5 ksi
290 MPa42.1 ksi

Yield Strength (0.2% offset)

130 MPa18.9 ksi
100 MPa14.5 ksi

Reduction in Area

60%
—

Shear Strength

200 MPa29 ksi
185 MPa26.8 ksi

Fatigue Strength (Endurance Limit)

130 MPa18.9 ksi
100 MPa14.5 ksi

Hardness, Brinell

75 HB
66 HB

Hardness, Vickers

80 HV
70 HV

Hardness, Rockwell B

—
30 HRB

Same in both: Shear Modulus 29 GPa4.2 Msi · Poisson's Ratio 0.37 · Elongation at Break 40%

Physical

Density and transition temperatures.

Density

10.15 g/cm³0.37 lb/in³
10.31 g/cm³0.37 lb/in³

Liquidus Temperature

810°C1,490 °F
875°C1,607 °F

Same in both: Melting Point (Solidus) 779°C1,434 °F

Thermal

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

Thermal Conductivity

320 W/m·K185 BTU/hr·ft·°F
330 W/m·K191 BTU/hr·ft·°F

Specific Heat Capacity

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

Latent Heat of Fusion

125 J/g53.7 BTU/lb
105 J/g45.1 BTU/lb

Same in both: Thermal Expansion (CTE, 20–100 °C) 18.9 µm/m·K10.5 µin/in·°F · Max Service Temperature (continuous) 250°C482 °F · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

78 % IACS
85 % IACS

Electrical Resistivity

2.2×10⁻⁸ Ω·m0.866 µΩ·in
2.03×10⁻⁸ Ω·m0.799 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.05 V
0.1 V

Corrosion Resistance

60 / 100
70 / 100

Manufacturability

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

Machinability

45 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

55%
40%

Weldability

70 / 100
55 / 100

Formability (cold)

92 / 100
88 / 100

Castability

85 / 100
80 / 100

Brazeability / Solderability

90 / 100
95 / 100

Same in both: Polishability 95 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

1,200 MJ/kg515,908 BTU/lb
1,450 MJ/kg623,388 BTU/lb

Embodied Carbon (primary production)

90 kg CO₂/kg
100 kg CO₂/kg

Embodied Water

260 L/kg31.2 gal/lb
—

Typical Recycled Content

50%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

30 kN·m/kg
28 kN·m/kg

Specific Stiffness (E / density)

7.8 MN·m/kg
7.6 MN·m/kg

Modulus of Resilience

107 kJ/m³
64 kJ/m³

Thermal Diffusivity

120.3 mm²/s
133.4 mm²/s

Thermal Shock Resistance Index

64
65

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 900800 Silver

Manufacturing and finishing

Capability800 SilverCoin Silver 900
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

800 Silver vs Coin Silver 900 — frequently asked

Is 800 Silver stronger than Coin Silver 900?

Yes. 800 Silver has a typical yield strength of 130 MPa (18.9 ksi) against 100 MPa (14.5 ksi) for Coin Silver 900 — about 30% more. Tensile strength is 300 MPa (43.5 ksi) vs 290 MPa (42.1 ksi).

Which is cheaper, 800 Silver 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, 800 Silver or Coin Silver 900?

800 Silver, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for Coin Silver 900; for welding the order is 800 Silver first (very good, 70/100) then Coin Silver 900 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 800 Silver 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.