Precious Metal B563-H vs B563-SR
Precious Metal · B563 temper comparison
B563-H and B563-SR are two conditions of the same precious metal grade, B563: H (hardened) versus SR (stress relieved). The chemistry is identical, so every difference below comes from the condition. B563-H is the stronger of the two: tensile strength 1,000 MPa (145 ksi) against 950 MPa (138 ksi) for B563-SR, about 5% more. In exchange, B563-SR is the more ductile: elongation 5% versus 3% for B563-H. B563-SR runs hotter in service (300°C vs 250°C continuous).
B563-HChoose it when strength drives the design.
B563-SRChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.
B563-H vs B563-SR: 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
Shear Strength
Fatigue Strength (Endurance Limit)
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 116 GPa16.8 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 150 GPa21.8 Msi · Poisson's Ratio 0.37 · Reduction in Area 55% · Hardness, Rockwell B 78 HRB
Physical
Density and transition temperatures.
Same in both: Density 11.7 g/cm³0.42 lb/in³ · Melting Point (Solidus) 1,010°C1,850 °F · Liquidus Temperature 1,080°C1,976 °F
Thermal
How each material carries heat and how hot it can run.
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 31 W/m·K17.9 BTU/hr·ft·°F · Specific Heat Capacity 250 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 14.5 µm/m·K8.1 µin/in·°F · 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) 0.25 V · Corrosion Resistance 95 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Formability (cold)
Same in both: Machinability 55 / 100 · Machinability Rating (AISI 1212 = 100 %) 35% · Weldability 70 / 100 · Castability 60 / 100 · Brazeability / Solderability 90 / 100 · Polishability 95 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 90,000 MJ/kg3.87×10⁷ BTU/lb · Embodied Carbon (primary production) 6,000 kg CO₂/kg · Embodied Water 400,000 L/kg47,930 gal/lb · Typical Recycled Content 60%
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.
B563-H vs B563-SR — frequently asked
Is B563-H stronger than B563-SR?
Yes. B563-H has a typical tensile strength of 1,000 MPa (145 ksi) against 950 MPa (138 ksi) for B563-SR — about 5% more.
Which condition does FabDigit quote by default, H or SR?
SA is the default B563 condition in the FabDigit quote flow (neither H nor SR). 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 B563-H over B563-SR?
Pick B563-H when strength drives the design. Pick B563-SR 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 B563-H and B563-SR 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.