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Precious Metal 24K-F vs 24K-H02

Precious Metal · 24K temper comparison

24K-F and 24K-H02 are two conditions of the same precious metal grade, 24K: F (as fabricated) versus H02 (half hard). The chemistry is identical, so every difference below comes from the condition. 24K-H02 is the stronger of the two: yield strength 120 MPa (17.4 ksi) against 25 MPa (3.63 ksi) for 24K-F, about 4.8 times as much; tensile strength follows at 170 MPa (24.7 ksi) vs 105 MPa (15.2 ksi). In exchange, 24K-F is the more ductile: elongation 30% versus 15% for 24K-H02, and 24K-H02 is harder (43 HB vs 22 HB). 24K-F runs hotter in service (600°C vs 100°C continuous). On the shop floor, 24K-H02 machines more easily (fair vs poor).

24K-FChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

24K-H02Choose it when strength drives the design, or when the part is machined in volume.

24K-F vs 24K-H02: properties

24K-F24K-H02

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

77 GPa11.2 Msi
78 GPa11.3 Msi

Tensile Strength (Ultimate)

105 MPa15.2 ksi
170 MPa24.7 ksi

Yield Strength (0.2% offset)

25 MPa3.6 ksi
120 MPa17.4 ksi

Elongation at Break

30%
15%

Reduction in Area

60%
70%

Shear Strength

75 MPa10.9 ksi
105 MPa15.2 ksi

Fatigue Strength (Endurance Limit)

28 MPa4.1 ksi
55 MPa8 ksi

Hardness, Brinell

22 HB
43 HB

Hardness, Vickers

22 HV
45 HV

Same in both: Shear Modulus 27 GPa3.9 Msi · Bulk Modulus 180 GPa26.1 Msi · Poisson's Ratio 0.42

Physical

Density and transition temperatures.

Same in both: Density 19.32 g/cm³0.7 lb/in³ · Melting Point (Solidus) 1,064°C1,947 °F · Liquidus Temperature 1,064°C1,947 °F

Thermal

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

Thermal Conductivity

318 W/m·K184 BTU/hr·ft·°F
312 W/m·K180 BTU/hr·ft·°F

Max Service Temperature (continuous)

600°C1,112 °F
100°C212 °F

Same in both: Specific Heat Capacity 129 J/kg·K0.03 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 14.2 µm/m·K7.9 µin/in·°F · Latent Heat of Fusion 64 J/g27.4 BTU/lb · Min Service Temperature -250°C-418 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

71 % IACS
69 % IACS

Electrical Resistivity

2.44×10⁻⁸ Ω·m0.961 µΩ·in
2.5×10⁻⁸ Ω·m0.984 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) 0.25 V · Corrosion Resistance 100 / 100

Manufacturability

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

Machinability

28 / 100
38 / 100

Machinability Rating (AISI 1212 = 100 %)

23%
32%

Weldability

85 / 100
88 / 100

Formability (cold)

80 / 100
60 / 100

Same in both: Castability 85 / 100 · Brazeability / Solderability 95 / 100 · Polishability 90 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 250,000 MJ/kg1.07×10⁸ BTU/lb · Embodied Carbon (primary production) 20,000 kg CO₂/kg · Embodied Water 150,000 L/kg17,974 gal/lb · Typical Recycled Content 28%

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 scale24K

24K-F vs 24K-H02 — frequently asked

Is 24K-H02 stronger than 24K-F?

Yes. 24K-H02 has a typical yield strength of 120 MPa (17.4 ksi) against 25 MPa (3.63 ksi) for 24K-F — about 4.8 times as much. Tensile strength is 170 MPa (24.7 ksi) vs 105 MPa (15.2 ksi).

Which condition does FabDigit quote by default, F or H02?

O is the default 24K condition in the FabDigit quote flow (neither F nor H02). 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.

Which is easier to machine, 24K-F or 24K-H02?

24K-H02. Its machinability rates fair (38/100) against poor (28/100) for 24K-F.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 24K-F and 24K-H02 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.