Solder & Low-Melting Alloy Sn60Pb40Sb vs Sn62Pb36Ag2
Solder & Low-Melting Alloy · grade comparison
Solder & Low-Melting Alloy Sn60Pb40Sb and Sn62Pb36Ag2 are both solder & low-melting alloy grades. Sn60Pb40Sb is the stronger of the two: tensile strength 52 MPa (7.54 ksi) against 48 MPa (6.96 ksi) for Sn62Pb36Ag2, about 8% more. Sn60Pb40Sb runs hotter in service (110°C vs 100°C continuous).
Sn60Pb40SbChoose it when strength drives the design, or when the part sees heat.
Sn60Pb40Sb vs Sn62Pb36Ag2: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all solder & low-melting alloy 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 solder & low-melting alloy 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.
Elastic (Young's) Modulus
Shear Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Vickers
Same in both: Bulk Modulus 42 GPa6.1 Msi · Elongation at Break 35% · Shear Strength 38 MPa5.5 ksi · Hardness, Brinell 15 HB
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Same in both: Thermal Conductivity 50 W/m·K28.9 BTU/hr·ft·°F · Specific Heat Capacity 176 J/kg·K0.04 BTU/lb·°F · Min Service Temperature -55°C-67 °F
Electrical
Conductivity and insulation.
Same in both: Electrical Conductivity 11.5 % IACS · Electrical Resistivity 1.5×10⁻⁷ Ω·m5.91 µΩ·in
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.5 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Same in both: Polishability 25 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 35%
Common Calculations
Ratios derived from the values above.
Modulus of Resilience
Thermal Diffusivity
Same in both: Specific Strength (UTS / density) 6 kN·m/kg · Specific Stiffness (E / density) 3.6 MN·m/kg · Thermal Shock Resistance Index 3
Strength versus weight
Yield strength against density for every solder & low-melting alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | Sn60Pb40Sb | Sn62Pb36Ag2 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Sn60Pb40Sb vs Sn62Pb36Ag2 — frequently asked
Is Sn60Pb40Sb stronger than Sn62Pb36Ag2?
Yes. Sn60Pb40Sb has a typical tensile strength of 52 MPa (7.54 ksi) against 48 MPa (6.96 ksi) for Sn62Pb36Ag2 — about 8% more.
Which is cheaper, Sn60Pb40Sb or Sn62Pb36Ag2?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Sn60Pb40Sb or Sn62Pb36Ag2?
Sn60Pb40Sb. Its machinability rates fair (35/100) against poor (30/100) for Sn62Pb36Ag2.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Sn60Pb40Sb and Sn62Pb36Ag2 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.