Solder & Low-Melting Alloy Antimonial Lead 6% Sb vs Chemical Lead
Solder & Low-Melting Alloy · grade comparison
Solder & Low-Melting Alloy Antimonial Lead 6% Sb and Chemical Lead are both solder & low-melting alloy grades. Antimonial Lead 6% Sb is the stronger of the two: yield strength 30 MPa (4.35 ksi) against 6 MPa (0.87 ksi) for Chemical Lead, about 5.0 times as much; tensile strength follows at 55 MPa (7.98 ksi) vs 17 MPa (2.47 ksi). In exchange, Chemical Lead is the more ductile: elongation 50% versus 25% for Antimonial Lead 6% Sb, and Antimonial Lead 6% Sb is harder (14 HB vs 5 HB). Antimonial Lead 6% Sb is lighter (10.88 g/cm³ vs 11.34 g/cm³ for Chemical Lead) and Antimonial Lead 6% Sb is stiffer (17 GPa vs 14 GPa). On the shop floor, Antimonial Lead 6% Sb machines more easily (very good vs good).
Antimonial Lead 6% SbChoose it when strength drives the design, or when weight is the constraint.
Chemical LeadChoose it when the part is bent, formed or impact-loaded.
Antimonial Lead 6% Sb vs Chemical Lead: 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.
Antimonial Lead 6% SbChemical Lead
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
Fatigue Strength (Endurance Limit)
Hardness, Brinell
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
Min Service Temperature
Same in both: Max Service Temperature (continuous) 100°C212 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Brazeability / Solderability
Polishability
Same in both: Castability 90 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
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 | Antimonial Lead 6% Sb | Chemical Lead |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Antimonial Lead 6% Sb vs Chemical Lead — frequently asked
Is Antimonial Lead 6% Sb stronger than Chemical Lead?
Yes. Antimonial Lead 6% Sb has a typical yield strength of 30 MPa (4.35 ksi) against 6 MPa (0.87 ksi) for Chemical Lead — about 5.0 times as much. Tensile strength is 55 MPa (7.98 ksi) vs 17 MPa (2.47 ksi).
Which is cheaper, Antimonial Lead 6% Sb or Chemical Lead?
Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.
Which is easier to machine, Antimonial Lead 6% Sb or Chemical Lead?
Antimonial Lead 6% Sb. Its machinability rates very good (78/100) against good (55/100) for Chemical Lead; for welding the order is Chemical Lead first (very good, 75/100) then Antimonial Lead 6% Sb (very good, 70/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in Antimonial Lead 6% Sb and Chemical Lead 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.