Precious Metal BVAg-29 CW-Hard vs BVAg-29-O
Precious Metal · BVAg-29 temper comparison
BVAg-29 CW-Hard and BVAg-29-O are two conditions of the same precious metal grade, BVAg-29: CW-Hard (cold Drawn / Hard) versus O (annealed). The chemistry is identical, so every difference below comes from the condition. BVAg-29 CW-Hard is the stronger of the two: yield strength 350 MPa (50.8 ksi) against 120 MPa (17.4 ksi) for BVAg-29-O, about 192% more; tensile strength follows at 420 MPa (60.9 ksi) vs 230 MPa (33.4 ksi). In exchange, BVAg-29-O is the more ductile: elongation 30% versus 5% for BVAg-29 CW-Hard, and BVAg-29 CW-Hard is harder (123 HB vs 66 HB). BVAg-29-O runs hotter in service (300°C vs 200°C continuous). On the shop floor, BVAg-29 CW-Hard machines more easily (good vs fair).
BVAg-29 CW-HardChoose it when strength drives the design, or when the part is machined in volume.
BVAg-29-OChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
BVAg-29 CW-Hard vs BVAg-29-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.
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 83 GPa12 Msi · Shear Modulus 30 GPa4.4 Msi · Bulk Modulus 100 GPa14.5 Msi · Poisson's Ratio 0.36
Physical
Density and transition temperatures.
Same in both: Density 9.7 g/cm³0.35 lb/in³ · Melting Point (Solidus) 605°C1,121 °F · Liquidus Temperature 715°C1,319 °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 250 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 18.5 µm/m·K10.3 µin/in·°F · Min Service Temperature -196°C-321 °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) 0.05 V · Corrosion Resistance 70 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Same in both: Weldability 20 / 100 · Castability 70 / 100 · Brazeability / Solderability 100 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 1,100 MJ/kg472,915 BTU/lb · Embodied Carbon (primary production) 78 kg CO₂/kg · Embodied Water 12,000 L/kg1,438 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.
BVAg-29 CW-Hard vs BVAg-29-O — frequently asked
Is BVAg-29 CW-Hard stronger than BVAg-29-O?
Yes. BVAg-29 CW-Hard has a typical yield strength of 350 MPa (50.8 ksi) against 120 MPa (17.4 ksi) for BVAg-29-O — about 192% more. Tensile strength is 420 MPa (60.9 ksi) vs 230 MPa (33.4 ksi).
Which condition does FabDigit quote by default, CW-Hard or O?
AS-BRAZED is the default BVAg-29 condition in the FabDigit quote flow (neither CW-Hard nor O). 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, BVAg-29 CW-Hard or BVAg-29-O?
BVAg-29 CW-Hard. Its machinability rates good (55/100) against fair (40/100) for BVAg-29-O.
Ready to make it?
Upload a CAD file and FabDigit prices the part in BVAg-29 CW-Hard and BVAg-29-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.