Precious Metal Coin Silver 900 vs S800
Precious Metal · grade comparison
Precious Metal Coin Silver 900 and S800 are both precious metal grades. S800 is the stronger of the two: yield strength 110 MPa (16 ksi) against 100 MPa (14.5 ksi) for Coin Silver 900, about 10% more; tensile strength follows at 310 MPa (45 ksi) vs 290 MPa (42.1 ksi). In exchange, Coin Silver 900 is the more ductile: elongation 40% versus 35% for S800, and Coin Silver 900 is harder (30 HRB vs 28 HRB). Coin Silver 900 runs hotter in service (250°C vs 200°C continuous) and Coin Silver 900 conducts electricity better (85 % IACS vs 60 % IACS). On the shop floor, S800 machines more easily (50 vs 40 out of 100).
Coin Silver 900Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
S800Choose it when strength drives the design, or when the part is machined in volume.
Coin Silver 900 vs S800: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all precious metal grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all precious metal grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Rockwell B
Reduction in Area
Charpy V-Notch Impact (RT)
Same in both: Bulk Modulus 103 GPa14.9 Msi · Poisson's Ratio 0.37 · Hardness, Brinell 66 HB · Hardness, Vickers 70 HV
Physical
Density and transition temperatures.
Density
Liquidus Temperature
Same in both: Melting Point (Solidus) 779°C1,434 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Brazeability / Solderability
Polishability
Same in both: Castability 80 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Embodied Water
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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.
Manufacturing and finishing
| Capability | Coin Silver 900 | S800 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Coin Silver 900 vs S800 — frequently asked
Is S800 stronger than Coin Silver 900?
Yes. S800 has a typical yield strength of 110 MPa (16 ksi) against 100 MPa (14.5 ksi) for Coin Silver 900 — about 10% more. Tensile strength is 310 MPa (45 ksi) vs 290 MPa (42.1 ksi).
Which is cheaper, Coin Silver 900 or S800?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Coin Silver 900 or S800?
S800, by a small margin. Both rate fair for machinability — 50/100 against 40/100 for Coin Silver 900; for welding the order is S800 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 Coin Silver 900 and S800 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.