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Precious Metal 88Ag-12SnO2 1/2H vs 88Ag-12SnO2 Annealed

Precious Metal · 88Ag-12SnO2 temper comparison

88Ag-12SnO2 1/2H and 88Ag-12SnO2 Annealed are two conditions of the same precious metal grade, 88Ag-12SnO2: 1/2H (half hard) versus Annealed. The chemistry is identical, so every difference below comes from the condition. 88Ag-12SnO2 1/2H is the stronger of the two: yield strength 200 MPa (29 ksi) against 150 MPa (21.8 ksi) for 88Ag-12SnO2 Annealed, about 33% more; tensile strength follows at 270 MPa (39.2 ksi) vs 235 MPa (34.1 ksi). In exchange, 88Ag-12SnO2 Annealed is the more ductile: elongation 20% versus 13% for 88Ag-12SnO2 1/2H, and 88Ag-12SnO2 1/2H is harder (81 HB vs 67 HB). 88Ag-12SnO2 Annealed runs hotter in service (300°C vs 250°C continuous).

88Ag-12SnO2 1/2HChoose it when strength drives the design.

88Ag-12SnO2 AnnealedChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

88Ag-12SnO2 1/2H vs 88Ag-12SnO2 Annealed: properties

88Ag-12SnO2 1/2H88Ag-12SnO2 Annealed

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

88 GPa12.8 Msi
86 GPa12.5 Msi

Tensile Strength (Ultimate)

270 MPa39.2 ksi
235 MPa34.1 ksi

Yield Strength (0.2% offset)

200 MPa29 ksi
150 MPa21.8 ksi

Elongation at Break

13%
20%

Hardness, Brinell

81 HB
67 HB

Hardness, Vickers

85 HV
70 HV

Same in both: Shear Modulus 32 GPa4.6 Msi · Bulk Modulus 105 GPa15.2 Msi · Poisson's Ratio 0.36

Physical

Density and transition temperatures.

Same in both: Density 9.9 g/cm³0.36 lb/in³ · Melting Point (Solidus) 961°C1,762 °F · Liquidus Temperature 962°C1,764 °F

Thermal

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

Thermal Conductivity

325 W/m·K188 BTU/hr·ft·°F
330 W/m·K191 BTU/hr·ft·°F

Max Service Temperature (continuous)

250°C482 °F
300°C572 °F

Same in both: Specific Heat Capacity 240 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18 µm/m·K10 µin/in·°F · Latent Heat of Fusion 92 J/g39.6 BTU/lb · Min Service Temperature -60°C-76 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

79 % IACS
80 % IACS

Electrical Resistivity

2.18×10⁻⁸ Ω·m0.858 µΩ·in
2.15×10⁻⁸ Ω·m0.846 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) 0.05 V · Corrosion Resistance 80 / 100

Manufacturability

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

Machinability

38 / 100
35 / 100

Machinability Rating (AISI 1212 = 100 %)

35%
30%

Weldability

58 / 100
60 / 100

Formability (cold)

50 / 100
65 / 100

Same in both: Castability 25 / 100 · Brazeability / Solderability 85 / 100 · Polishability 65 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 1,300 MJ/kg558,900 BTU/lb · Embodied Carbon (primary production) 100 kg CO₂/kg · Embodied Water 400 L/kg47.9 gal/lb · Typical Recycled Content 40%

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 scale88Ag-12SnO2

88Ag-12SnO2 1/2H vs 88Ag-12SnO2 Annealed — frequently asked

Is 88Ag-12SnO2 1/2H stronger than 88Ag-12SnO2 Annealed?

Yes. 88Ag-12SnO2 1/2H has a typical yield strength of 200 MPa (29 ksi) against 150 MPa (21.8 ksi) for 88Ag-12SnO2 Annealed — about 33% more. Tensile strength is 270 MPa (39.2 ksi) vs 235 MPa (34.1 ksi).

Which condition does FabDigit quote by default, 1/2H or Annealed?

H is the default 88Ag-12SnO2 condition in the FabDigit quote flow (neither 1/2H nor Annealed). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

When should I choose 88Ag-12SnO2 1/2H over 88Ag-12SnO2 Annealed?

Pick 88Ag-12SnO2 1/2H when strength drives the design. Pick 88Ag-12SnO2 Annealed when the part is bent, formed or impact-loaded, or when the part sees heat.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 88Ag-12SnO2 1/2H and 88Ag-12SnO2 Annealed 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.