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Precious Metal B596 vs Silver 999

Precious Metal · grade comparison

Precious Metal B596 and Silver 999 are both precious metal grades. B596 is the stronger of the two: yield strength 620 MPa (89.9 ksi) against 55 MPa (7.98 ksi) for Silver 999, about 11 times as much; tensile strength follows at 760 MPa (110 ksi) vs 140 MPa (20.3 ksi). In exchange, Silver 999 is the more ductile: elongation 48% versus 3% for B596, and B596 is harder (215 HV vs 27 HV). Silver 999 is lighter (10.49 g/cm³ vs 15.5 g/cm³ for B596) and B596 is stiffer (92 GPa vs 76 GPa). On the shop floor, B596 machines more easily (good vs fair), B596 welds better (very good vs good), and B596 sits in a lower cost tier (high, $$$$) than Silver 999 (specialty, $$$$$).

B596Choose it when strength drives the design, or when the part is machined in volume.

Silver 999Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

B596 vs Silver 999: properties

B596Silver 999

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

92 GPa13.3 Msi
76 GPa11 Msi

Shear Modulus

33 GPa4.8 Msi
29.5 GPa4.3 Msi

Bulk Modulus

150 GPa21.8 Msi
100 GPa14.5 Msi

Poisson's Ratio

0.4
0.37

Tensile Strength (Ultimate)

760 MPa110 ksi
140 MPa20.3 ksi

Yield Strength (0.2% offset)

620 MPa89.9 ksi
55 MPa8 ksi

Elongation at Break

3%
48%

Shear Strength

450 MPa65.3 ksi
95 MPa13.8 ksi

Fatigue Strength (Endurance Limit)

290 MPa42.1 ksi
60 MPa8.7 ksi

Hardness, Vickers

215 HV
27 HV

Reduction in Area

—
85%

Hardness, Brinell

—
25 HB

Physical

Density and transition temperatures.

Density

15.5 g/cm³0.56 lb/in³
10.49 g/cm³0.38 lb/in³

Melting Point (Solidus)

885°C1,625 °F
962°C1,763 °F

Liquidus Temperature

895°C1,643 °F
962°C1,763 °F

Thermal

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

Thermal Conductivity

62 W/m·K35.8 BTU/hr·ft·°F
429 W/m·K248 BTU/hr·ft·°F

Specific Heat Capacity

155 J/kg·K0.04 BTU/lb·°F
235 J/kg·K0.06 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

16 µm/m·K8.9 µin/in·°F
19.6 µm/m·K10.9 µin/in·°F

Latent Heat of Fusion

95 J/g40.8 BTU/lb
105 J/g45.1 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
250°C482 °F

Min Service Temperature

-269°C-452 °F
-200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

15 % IACS
106 % IACS

Electrical Resistivity

1.15×10⁻⁷ Ω·m4.53 µΩ·in
1.59×10⁻⁸ Ω·m0.626 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

0.2 V
-0.11 V

Corrosion Resistance

90 / 100
80 / 100

Manufacturability

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

Machinability

55 / 100
40 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
55%

Weldability

75 / 100
60 / 100

Formability (cold)

30 / 100
98 / 100

Castability

75 / 100
85 / 100

Brazeability / Solderability

95 / 100
96 / 100

Polishability

95 / 100
98 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

200,000 MJ/kg8.6×10⁷ BTU/lb
1,550 MJ/kg666,381 BTU/lb

Embodied Carbon (primary production)

12,000 kg CO₂/kg
96 kg CO₂/kg

Embodied Water

150,000 L/kg17,974 gal/lb
250 L/kg30 gal/lb

Typical Recycled Content

45%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

49 kN·m/kg
13 kN·m/kg

Specific Stiffness (E / density)

5.9 MN·m/kg
7.2 MN·m/kg

Modulus of Resilience

2,089 kJ/m³
20 kJ/m³

Thermal Diffusivity

25.8 mm²/s
174 mm²/s

Thermal Shock Resistance Index

32
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.

50100200500101520Density (g/cm³)Yield strength (MPa) — log scaleSilver 999B596

Manufacturing and finishing

CapabilityB596Silver 999
Default condition—O
Relative cost$$$$ High$$$$$ Specialty
Min. machined wall——
Best machined surface——

B596 vs Silver 999 — frequently asked

Is B596 stronger than Silver 999?

Yes. B596 has a typical yield strength of 620 MPa (89.9 ksi) against 55 MPa (7.98 ksi) for Silver 999 — about 11 times as much. Tensile strength is 760 MPa (110 ksi) vs 140 MPa (20.3 ksi).

Which is cheaper, B596 or Silver 999?

B596 is the lower-cost material: it sits in the high tier ($$$$) while Silver 999 is specialty ($$$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, B596 or Silver 999?

B596. Its machinability rates good (55/100) against fair (40/100) for Silver 999; for welding the order is B596 first (very good, 75/100) then Silver 999 (good, 60/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in B596 and Silver 999 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.