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Precious Metal BAg-1 vs BAg-8

Precious Metal · grade comparison

Precious Metal BAg-1 and BAg-8 are both precious metal grades. BAg-1 is the stronger of the two: yield strength 200 MPa (29 ksi) against 160 MPa (23.2 ksi) for BAg-8, about 25% more; tensile strength follows at 414 MPa (60 ksi) vs 380 MPa (55.1 ksi). BAg-1 is harder — 90 HB against 65 HB for BAg-8 — which matters for wear surfaces and threads. BAg-1 is lighter (9.3 g/cm³ vs 10 g/cm³ for BAg-8) and BAg-8 is stiffer (90 GPa vs 83 GPa). On the shop floor, BAg-8 machines more easily (good vs fair), BAg-8 welds better (30 vs 15 out of 100), and BAg-8 forms better (excellent vs very good).

BAg-1Choose it when strength drives the design, or when surface hardness matters.

BAg-8Choose it when the part sees heat, or when the part is machined in volume.

BAg-1 vs BAg-8: properties

BAg-1BAg-8

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

83 GPa12 Msi
90 GPa13.1 Msi

Shear Modulus

31 GPa4.5 Msi
34 GPa4.9 Msi

Tensile Strength (Ultimate)

414 MPa60 ksi
380 MPa55.1 ksi

Yield Strength (0.2% offset)

200 MPa29 ksi
160 MPa23.2 ksi

Elongation at Break

21%
20%

Shear Strength

170 MPa24.7 ksi
220 MPa31.9 ksi

Hardness, Brinell

90 HB
65 HB

Hardness, Rockwell B

56 HRB
55 HRB

Hardness, Vickers

95 HV
70 HV

Bulk Modulus

—
110 GPa16 Msi

Reduction in Area

—
35%

Fatigue Strength (Endurance Limit)

—
120 MPa17.4 ksi

Same in both: Poisson's Ratio 0.36

Physical

Density and transition temperatures.

Density

9.3 g/cm³0.34 lb/in³
10 g/cm³0.36 lb/in³

Melting Point (Solidus)

607°C1,125 °F
780°C1,436 °F

Liquidus Temperature

618°C1,144 °F
780°C1,436 °F

Thermal

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

Thermal Conductivity

100 W/m·K57.8 BTU/hr·ft·°F
355 W/m·K205 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

19 µm/m·K10.6 µin/in·°F
19.6 µm/m·K10.9 µin/in·°F

Latent Heat of Fusion

110 J/g47.3 BTU/lb
130 J/g55.9 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
400°C752 °F

Min Service Temperature

-196°C-321 °F
-200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

22 % IACS
87 % IACS

Electrical Resistivity

7.8×10⁻⁸ Ω·m3.07 µΩ·in
1.98×10⁻⁸ Ω·m0.78 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.05 V
0 V

Corrosion Resistance

65 / 100
72 / 100

Manufacturability

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

Machinability

40 / 100
55 / 100

Weldability

15 / 100
30 / 100

Formability (cold)

75 / 100
85 / 100

Castability

80 / 100
92 / 100

Polishability

70 / 100
85 / 100

Machinability Rating (AISI 1212 = 100 %)

—
55%

Same in both: Brazeability / Solderability 98 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

700 MJ/kg300,946 BTU/lb
1,100 MJ/kg472,915 BTU/lb

Embodied Carbon (primary production)

48 kg CO₂/kg
78 kg CO₂/kg

Embodied Water

15,000 L/kg1,797 gal/lb
2,500 L/kg300 gal/lb

Typical Recycled Content

40%
45%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

45 kN·m/kg
38 kN·m/kg

Specific Stiffness (E / density)

8.9 MN·m/kg
9 MN·m/kg

Modulus of Resilience

241 kJ/m³
142 kJ/m³

Thermal Diffusivity

38.4 mm²/s
151.1 mm²/s

Thermal Shock Resistance Index

26
76

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 scaleBAg-1BAg-8

Manufacturing and finishing

CapabilityBAg-1BAg-8
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

BAg-1 vs BAg-8 — frequently asked

Is BAg-1 stronger than BAg-8?

Yes. BAg-1 has a typical yield strength of 200 MPa (29 ksi) against 160 MPa (23.2 ksi) for BAg-8 — about 25% more. Tensile strength is 414 MPa (60 ksi) vs 380 MPa (55.1 ksi).

Which is cheaper, BAg-1 or BAg-8?

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, BAg-1 or BAg-8?

BAg-8. Its machinability rates good (55/100) against fair (40/100) for BAg-1; for welding the order is BAg-8 first (poor, 30/100) then BAg-1 (poor, 15/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in BAg-1 and BAg-8 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.