Precious Metal 18K Rose Gold H02-1/4H vs 18K Rose Gold-O
Precious Metal · 18K Rose Gold temper comparison
18K Rose Gold H02-1/4H and 18K Rose Gold-O are two conditions of the same precious metal grade, 18K Rose Gold: H02-1/4H (1/4 Hard) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. 18K Rose Gold H02-1/4H is the stronger of the two: yield strength 450 MPa (65.3 ksi) against 210 MPa (30.5 ksi) for 18K Rose Gold-O, about 114% more; tensile strength follows at 600 MPa (87 ksi) vs 460 MPa (66.7 ksi). In exchange, 18K Rose Gold-O is the more ductile: elongation 32% versus 15% for 18K Rose Gold H02-1/4H, and 18K Rose Gold H02-1/4H is harder (166 HB vs 143 HB). 18K Rose Gold-O runs hotter in service (300°C vs 200°C continuous).
18K Rose Gold H02-1/4HChoose it when strength drives the design.
18K Rose Gold-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
18K Rose Gold H02-1/4H vs 18K Rose Gold-O: 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.
18K Rose Gold H02-1/4H18K Rose Gold-O
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 88 GPa12.8 Msi · Shear Modulus 32 GPa4.6 Msi · Bulk Modulus 125 GPa18.1 Msi · Poisson's Ratio 0.37 · Charpy V-Notch Impact (RT) 35 J25.8 ft·lbf
Physical
Density and transition temperatures.
Same in both: Density 15.3 g/cm³0.55 lb/in³ · Melting Point (Solidus) 890°C1,634 °F · Liquidus Temperature 905°C1,661 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Max Service Temperature (continuous)
Same in both: Specific Heat Capacity 195 J/kg·K0.05 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16 µm/m·K8.9 µin/in·°F · Latent Heat of Fusion 95 J/g40.8 BTU/lb · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) 0.2 V · Corrosion Resistance 78 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Same in both: Machinability Rating (AISI 1212 = 100 %) 55% · Castability 78 / 100 · Brazeability / Solderability 88 / 100 · Polishability 92 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 180,000 MJ/kg7.74×10⁷ BTU/lb · Embodied Carbon (primary production) 13,000 kg CO₂/kg · Embodied Water 200,000 L/kg23,965 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.
18K Rose Gold H02-1/4H vs 18K Rose Gold-O — frequently asked
Is 18K Rose Gold H02-1/4H stronger than 18K Rose Gold-O?
Yes. 18K Rose Gold H02-1/4H has a typical yield strength of 450 MPa (65.3 ksi) against 210 MPa (30.5 ksi) for 18K Rose Gold-O — about 114% more. Tensile strength is 600 MPa (87 ksi) vs 460 MPa (66.7 ksi).
Which condition does FabDigit quote by default, H02-1/4H or O?
O is the default 18K Rose Gold condition in the FabDigit quote flow. 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 welds better, 18K Rose Gold H02-1/4H or 18K Rose Gold-O?
18K Rose Gold-O. Its weldability rates good (62/100) against good (55/100) for 18K Rose Gold H02-1/4H.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 18K Rose Gold H02-1/4H and 18K Rose Gold-O 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.