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Precious Metal 90Pt-10Ir vs AgC10

Precious Metal · grade comparison

Precious Metal 90Pt-10Ir and AgC10 are both precious metal grades. 90Pt-10Ir is the stronger of the two: yield strength 205 MPa (29.7 ksi) against 70 MPa (10.2 ksi) for AgC10, about 193% more; tensile strength follows at 415 MPa (60.2 ksi) vs 110 MPa (16 ksi). 90Pt-10Ir is the more ductile: elongation 28% versus 4% for AgC10, and 90Pt-10Ir is harder (125 HB vs 30 HB). AgC10 is lighter (7.6 g/cm³ vs 21.55 g/cm³ for 90Pt-10Ir) and 90Pt-10Ir is stiffer (190 GPa vs 55 GPa). On the shop floor, AgC10 machines more easily (good vs poor) and 90Pt-10Ir welds better (very good vs poor).

90Pt-10IrChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

AgC10Choose it when weight is the constraint, or when the part is machined in volume.

90Pt-10Ir vs AgC10: properties

90Pt-10IrAgC10

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

190 GPa27.6 Msi
55 GPa8 Msi

Shear Modulus

72 GPa10.4 Msi
—

Bulk Modulus

290 GPa42.1 Msi
—

Poisson's Ratio

0.39
0.35

Tensile Strength (Ultimate)

415 MPa60.2 ksi
110 MPa16 ksi

Yield Strength (0.2% offset)

205 MPa29.7 ksi
70 MPa10.2 ksi

Elongation at Break

28%
4%

Reduction in Area

60%
—

Shear Strength

280 MPa40.6 ksi
—

Fatigue Strength (Endurance Limit)

190 MPa27.6 ksi
—

Hardness, Brinell

125 HB
30 HB

Hardness, Vickers

130 HV
—

Compressive Strength

—
200 MPa29 ksi

Physical

Density and transition temperatures.

Density

21.55 g/cm³0.78 lb/in³
7.6 g/cm³0.27 lb/in³

Melting Point (Solidus)

1,780°C3,236 °F
961°C1,762 °F

Liquidus Temperature

1,800°C3,272 °F
961°C1,762 °F

Thermal

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

Thermal Conductivity

31 W/m·K17.9 BTU/hr·ft·°F
200 W/m·K116 BTU/hr·ft·°F

Specific Heat Capacity

132 J/kg·K0.03 BTU/lb·°F
280 J/kg·K0.07 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

8.8 µm/m·K4.9 µin/in·°F
16 µm/m·K8.9 µin/in·°F

Latent Heat of Fusion

113 J/g48.6 BTU/lb
100 J/g43 BTU/lb

Max Service Temperature (continuous)

1,200°C2,192 °F
300°C572 °F

Min Service Temperature

-269°C-452 °F
-60°C-76 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

7 % IACS
48 % IACS

Electrical Resistivity

2.45×10⁻⁷ Ω·m9.65 µΩ·in
3.6×10⁻⁸ Ω·m1.42 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

0.25 V
0.1 V

Corrosion Resistance

100 / 100
82 / 100

Manufacturability

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

Machinability

30 / 100
55 / 100

Machinability Rating (AISI 1212 = 100 %)

25%
—

Weldability

70 / 100
15 / 100

Formability (cold)

90 / 100
30 / 100

Castability

40 / 100
—

Brazeability / Solderability

70 / 100
30 / 100

Polishability

90 / 100
40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

245,000 MJ/kg1.05×10⁸ BTU/lb
1,300 MJ/kg558,900 BTU/lb

Embodied Carbon (primary production)

13,500 kg CO₂/kg
90 kg CO₂/kg

Embodied Water

280,000 L/kg33,551 gal/lb
—

Typical Recycled Content

30%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

19 kN·m/kg
14 kN·m/kg

Specific Stiffness (E / density)

8.8 MN·m/kg
7.2 MN·m/kg

Modulus of Resilience

111 kJ/m³
45 kJ/m³

Thermal Diffusivity

10.9 mm²/s
94 mm²/s

Thermal Shock Resistance Index

8
25

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 scaleAgC1090Pt-10Ir

Manufacturing and finishing

Capability90Pt-10IrAgC10
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

90Pt-10Ir vs AgC10 — frequently asked

Is 90Pt-10Ir stronger than AgC10?

Yes. 90Pt-10Ir has a typical yield strength of 205 MPa (29.7 ksi) against 70 MPa (10.2 ksi) for AgC10 — about 193% more. Tensile strength is 415 MPa (60.2 ksi) vs 110 MPa (16 ksi).

Which is cheaper, 90Pt-10Ir or AgC10?

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, 90Pt-10Ir or AgC10?

AgC10. Its machinability rates good (55/100) against poor (30/100) for 90Pt-10Ir; for welding the order is 90Pt-10Ir first (very good, 70/100) then AgC10 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 90Pt-10Ir and AgC10 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.