Solder & Low-Melting Alloy B560 Type III vs Babbitt Grade 3 (Tin-Base)
Solder & Low-Melting Alloy · grade comparison
Solder & Low-Melting Alloy B560 Type III and Babbitt Grade 3 (Tin-Base) are both solder & low-melting alloy grades. Babbitt Grade 3 (Tin-Base) is the stronger of the two: yield strength 45 MPa (6.53 ksi) against 24 MPa (3.48 ksi) for B560 Type III, about 88% more; tensile strength follows at 70 MPa (10.2 ksi) vs 42 MPa (6.09 ksi). In exchange, B560 Type III is the more ductile: elongation 45% versus 3% for Babbitt Grade 3 (Tin-Base), and Babbitt Grade 3 (Tin-Base) is harder (27 HB vs 17 HB). Babbitt Grade 3 (Tin-Base) is stiffer (53 GPa vs 45 GPa) and Babbitt Grade 3 (Tin-Base) runs hotter in service (150°C vs 100°C continuous). On the shop floor, Babbitt Grade 3 (Tin-Base) machines more easily (excellent vs very good) and B560 Type III welds better (fair vs poor).
B560 Type IIIChoose it when the part is bent, formed or impact-loaded, or when it will be welded.
Babbitt Grade 3 (Tin-Base)Choose it when strength drives the design, or when the part sees heat.
B560 Type III vs Babbitt Grade 3 (Tin-Base): 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.
B560 Type IIIBabbitt Grade 3 (Tin-Base)
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Hardness, Brinell
Fatigue Strength (Endurance Limit)
Charpy V-Notch Impact (RT)
Hardness, Vickers
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
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
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Polishability
Same in both: Brazeability / Solderability 95 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Water
Typical Recycled Content
Same in both: Embodied Carbon (primary production) 17 kg CO₂/kg
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
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 | B560 Type III | Babbitt Grade 3 (Tin-Base) |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
B560 Type III vs Babbitt Grade 3 (Tin-Base) — frequently asked
Is Babbitt Grade 3 (Tin-Base) stronger than B560 Type III?
Yes. Babbitt Grade 3 (Tin-Base) has a typical yield strength of 45 MPa (6.53 ksi) against 24 MPa (3.48 ksi) for B560 Type III — about 88% more. Tensile strength is 70 MPa (10.2 ksi) vs 42 MPa (6.09 ksi).
Which is cheaper, B560 Type III or Babbitt Grade 3 (Tin-Base)?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, B560 Type III or Babbitt Grade 3 (Tin-Base)?
Babbitt Grade 3 (Tin-Base). Its machinability rates excellent (92/100) against very good (75/100) for B560 Type III; for welding the order is B560 Type III first (fair, 40/100) then Babbitt Grade 3 (Tin-Base) (poor, 20/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in B560 Type III and Babbitt Grade 3 (Tin-Base) 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.