Solder & Low-Melting Alloy Field's Metal vs Rose's Metal
Solder & Low-Melting Alloy · grade comparison
Solder & Low-Melting Alloy Field's Metal and Rose's Metal are both solder & low-melting alloy grades. Rose's Metal is the stronger of the two: yield strength 18 MPa (2.61 ksi) against 6 MPa (0.87 ksi) for Field's Metal, about 3.0 times as much; tensile strength follows at 30 MPa (4.35 ksi) vs 11 MPa (1.6 ksi). In exchange, Field's Metal is the more ductile: elongation 40% versus 25% for Rose's Metal, and Rose's Metal is harder (11 HB vs 7 HB). Field's Metal is lighter (7.88 g/cm³ vs 9.7 g/cm³ for Rose's Metal) and Rose's Metal is stiffer (25 GPa vs 10 GPa).
Field's MetalChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.
Rose's MetalChoose it when strength drives the design, or when the part sees heat.
Field's Metal vs Rose's Metal: 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
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Hardness, Brinell
Shear Modulus
Bulk Modulus
Same in both: Poisson's Ratio 0.35
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
Galvanic Potential (seawater, vs SCE)
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Weldability
Formability (cold)
Brazeability / Solderability
Polishability
Machinability Rating (AISI 1212 = 100 %)
Same in both: Machinability 30 / 100 · Castability 95 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Embodied Water
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 | Field's Metal | Rose's Metal |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Field's Metal vs Rose's Metal — frequently asked
Is Rose's Metal stronger than Field's Metal?
Yes. Rose's Metal has a typical yield strength of 18 MPa (2.61 ksi) against 6 MPa (0.87 ksi) for Field's Metal — about 3.0 times as much. Tensile strength is 30 MPa (4.35 ksi) vs 11 MPa (1.6 ksi).
Which is cheaper, Field's Metal or Rose's Metal?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which welds better, Field's Metal or Rose's Metal?
Field's Metal. Its weldability rates poor (20/100) against poor (15/100) for Rose's Metal.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Field's Metal and Rose's Metal 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.