Solder & Low-Melting Alloy In100 vs In52Sn48
Solder & Low-Melting Alloy · grade comparison
Solder & Low-Melting Alloy In100 and In52Sn48 are both solder & low-melting alloy grades. In52Sn48 is the stronger of the two: yield strength 7 MPa (1.02 ksi) against 0.8 MPa (0.116 ksi) for In100, about 8.8 times as much; tensile strength follows at 12 MPa (1.73 ksi) vs 3 MPa (0.377 ksi). In52Sn48 is the more ductile: elongation 60% versus 40% for In100, and In52Sn48 is harder (5 HB vs 1 HB). In52Sn48 is stiffer (20 GPa vs 11 GPa) and In100 runs hotter in service (80°C vs 60°C continuous). On the shop floor, In100 welds better (very good vs not recommended).
In100Choose it when the part sees heat, or when it will be welded.
In52Sn48Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.
In100 vs In52Sn48: 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
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Hardness, Brinell
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)
Same in both: Min Service Temperature -269°C-452 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.55 V · Corrosion Resistance 45 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Polishability
Same in both: Castability 90 / 100 · Brazeability / Solderability 98 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 30%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Same in both: Thermal Shock Resistance Index 1
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 | In100 | In52Sn48 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
In100 vs In52Sn48 — frequently asked
Is In52Sn48 stronger than In100?
Yes. In52Sn48 has a typical yield strength of 7 MPa (1.02 ksi) against 0.8 MPa (0.116 ksi) for In100 — about 8.8 times as much. Tensile strength is 12 MPa (1.73 ksi) vs 3 MPa (0.377 ksi).
Which is cheaper, In100 or In52Sn48?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, In100 or In52Sn48?
In52Sn48, by a small margin. Both rate poor for machinability — 20/100 against 15/100 for In100; for welding the order is In100 first (very good, 80/100) then In52Sn48 (not recommended, 10/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in In100 and In52Sn48 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.