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Precious Metal Britannia Silver (958)-H01 vs Britannia Silver (958)-H06

Precious Metal · Britannia Silver (958) temper comparison

Britannia Silver (958)-H01 and Britannia Silver (958)-H06 are two conditions of the same precious metal grade, Britannia Silver (958): H01 (quarter hard) versus H06 (extra hard). The chemistry is identical, so every difference below comes from the condition. Britannia Silver (958)-H06 is the stronger of the two: yield strength 370 MPa (53.7 ksi) against 200 MPa (29 ksi) for Britannia Silver (958)-H01, about 85% more; tensile strength follows at 420 MPa (60.9 ksi) vs 290 MPa (42.1 ksi). In exchange, Britannia Silver (958)-H01 is the more ductile: elongation 25% versus 3% for Britannia Silver (958)-H06, and Britannia Silver (958)-H06 is harder (114 HB vs 66 HB). Britannia Silver (958)-H01 runs hotter in service (175°C vs 120°C continuous). On the shop floor, Britannia Silver (958)-H01 welds better (65 vs 55 out of 100).

Britannia Silver (958)-H01Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

Britannia Silver (958)-H06Choose it when strength drives the design.

Britannia Silver (958)-H01 vs Britannia Silver (958)-H06: properties

Britannia Silver (958)-H01Britannia Silver (958)-H06

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

290 MPa42.1 ksi
420 MPa60.9 ksi

Yield Strength (0.2% offset)

200 MPa29 ksi
370 MPa53.7 ksi

Elongation at Break

25%
3%

Shear Strength

180 MPa26.1 ksi
245 MPa35.5 ksi

Fatigue Strength (Endurance Limit)

110 MPa16 ksi
155 MPa22.5 ksi

Hardness, Brinell

66 HB
114 HB

Hardness, Vickers

70 HV
120 HV

Same in both: Elastic (Young's) Modulus 76 GPa11 Msi · Shear Modulus 28 GPa4.1 Msi · Bulk Modulus 101 GPa14.6 Msi · Poisson's Ratio 0.37

Physical

Density and transition temperatures.

Same in both: Density 10.41 g/cm³0.38 lb/in³ · Melting Point (Solidus) 779°C1,434 °F · Liquidus Temperature 932°C1,710 °F

Thermal

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

Thermal Conductivity

381 W/m·K220 BTU/hr·ft·°F
368 W/m·K213 BTU/hr·ft·°F

Max Service Temperature (continuous)

175°C347 °F
120°C248 °F

Same in both: Specific Heat Capacity 236 J/kg·K0.06 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 19 µm/m·K10.6 µin/in·°F · Latent Heat of Fusion 105 J/g45.1 BTU/lb · Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

91 % IACS
88 % IACS

Electrical Resistivity

1.89×10⁻⁸ Ω·m0.744 µΩ·in
1.96×10⁻⁸ Ω·m0.772 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) 0.12 V · Corrosion Resistance 78 / 100

Manufacturability

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

Machinability

52 / 100
60 / 100

Machinability Rating (AISI 1212 = 100 %)

47%
55%

Weldability

65 / 100
55 / 100

Formability (cold)

80 / 100
15 / 100

Same in both: Castability 78 / 100 · Brazeability / Solderability 95 / 100 · Polishability 97 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 1,500 MJ/kg644,885 BTU/lb · Embodied Carbon (primary production) 105 kg CO₂/kg · Embodied Water 2,500 L/kg300 gal/lb · Typical Recycled Content 55%

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 scaleBritannia Silver (958)

Britannia Silver (958)-H01 vs Britannia Silver (958)-H06 — frequently asked

Is Britannia Silver (958)-H06 stronger than Britannia Silver (958)-H01?

Yes. Britannia Silver (958)-H06 has a typical yield strength of 370 MPa (53.7 ksi) against 200 MPa (29 ksi) for Britannia Silver (958)-H01 — about 85% more. Tensile strength is 420 MPa (60.9 ksi) vs 290 MPa (42.1 ksi).

Which condition does FabDigit quote by default, H01 or H06?

O is the default Britannia Silver (958) condition in the FabDigit quote flow (neither H01 nor H06). 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, Britannia Silver (958)-H01 or Britannia Silver (958)-H06?

Britannia Silver (958)-H06. Its machinability rates good (60/100) against fair (52/100) for Britannia Silver (958)-H01; for welding the order is Britannia Silver (958)-H01 first (good, 65/100) then Britannia Silver (958)-H06 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Britannia Silver (958)-H01 and Britannia Silver (958)-H06 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.