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Precious Metal AgC10 vs B780

Precious Metal · grade comparison

Precious Metal AgC10 and B780 are both precious metal grades. B780 is the stronger of the two: yield strength 125 MPa (18.1 ksi) against 70 MPa (10.2 ksi) for AgC10, about 79% more; tensile strength follows at 310 MPa (45 ksi) vs 110 MPa (16 ksi). B780 is the more ductile: elongation 30% versus 4% for AgC10, and B780 is harder (68 HB vs 30 HB). AgC10 is lighter (7.6 g/cm³ vs 10.05 g/cm³ for B780) and B780 is stiffer (88 GPa vs 55 GPa). On the shop floor, B780 welds better (good vs poor).

AgC10Choose it when weight is the constraint, or when the part sees heat.

B780Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

AgC10 vs B780: properties

AgC10B780

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

55 GPa8 Msi
88 GPa12.8 Msi

Poisson's Ratio

0.35
0.37

Tensile Strength (Ultimate)

110 MPa16 ksi
310 MPa45 ksi

Yield Strength (0.2% offset)

70 MPa10.2 ksi
125 MPa18.1 ksi

Elongation at Break

4%
30%

Compressive Strength

200 MPa29 ksi
—

Hardness, Brinell

30 HB
68 HB

Shear Modulus

—
33 GPa4.8 Msi

Bulk Modulus

—
108 GPa15.7 Msi

Reduction in Area

—
60%

Shear Strength

—
200 MPa29 ksi

Fatigue Strength (Endurance Limit)

—
110 MPa16 ksi

Hardness, Rockwell B

—
38 HRB

Hardness, Vickers

—
70 HV

Physical

Density and transition temperatures.

Density

7.6 g/cm³0.27 lb/in³
10.05 g/cm³0.36 lb/in³

Melting Point (Solidus)

961°C1,762 °F
779°C1,434 °F

Liquidus Temperature

961°C1,762 °F
795°C1,463 °F

Thermal

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

Thermal Conductivity

200 W/m·K116 BTU/hr·ft·°F
320 W/m·K185 BTU/hr·ft·°F

Specific Heat Capacity

280 J/kg·K0.07 BTU/lb·°F
245 J/kg·K0.06 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

16 µm/m·K8.9 µin/in·°F
18.5 µm/m·K10.3 µin/in·°F

Latent Heat of Fusion

100 J/g43 BTU/lb
105 J/g45.1 BTU/lb

Max Service Temperature (continuous)

300°C572 °F
250°C482 °F

Min Service Temperature

-60°C-76 °F
-200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

48 % IACS
78 % IACS

Electrical Resistivity

3.6×10⁻⁸ Ω·m1.42 µΩ·in
2.21×10⁻⁸ Ω·m0.87 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

0.1 V
0 V

Corrosion Resistance

82 / 100
75 / 100

Manufacturability

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

Machinability

55 / 100
50 / 100

Weldability

15 / 100
60 / 100

Formability (cold)

30 / 100
85 / 100

Brazeability / Solderability

30 / 100
90 / 100

Polishability

40 / 100
90 / 100

Machinability Rating (AISI 1212 = 100 %)

—
45%

Castability

—
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

1,300 MJ/kg558,900 BTU/lb
1,200 MJ/kg515,908 BTU/lb

Embodied Carbon (primary production)

90 kg CO₂/kg
95 kg CO₂/kg

Typical Recycled Content

40%
45%

Embodied Water

—
2,500 L/kg300 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

14 kN·m/kg
31 kN·m/kg

Specific Stiffness (E / density)

7.2 MN·m/kg
8.8 MN·m/kg

Modulus of Resilience

45 kJ/m³
89 kJ/m³

Thermal Diffusivity

94 mm²/s
130 mm²/s

Thermal Shock Resistance Index

25
61

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 scaleAgC10B780

Manufacturing and finishing

CapabilityAgC10B780
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

AgC10 vs B780 — frequently asked

Is B780 stronger than AgC10?

Yes. B780 has a typical yield strength of 125 MPa (18.1 ksi) against 70 MPa (10.2 ksi) for AgC10 — about 79% more. Tensile strength is 310 MPa (45 ksi) vs 110 MPa (16 ksi).

Which is cheaper, AgC10 or B780?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, AgC10 or B780?

AgC10. Its machinability rates good (55/100) against fair (50/100) for B780; for welding the order is B780 first (good, 60/100) then AgC10 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in AgC10 and B780 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.