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Solder & Low-Melting Alloy Babbitt Grade 1 (Tin-Base) vs ZSnSb4-4

Solder & Low-Melting Alloy · grade comparison

Solder & Low-Melting Alloy Babbitt Grade 1 (Tin-Base) and ZSnSb4-4 are both solder & low-melting alloy grades. Babbitt Grade 1 (Tin-Base) is the stronger of the two: tensile strength 66 MPa (9.57 ksi) against 62 MPa (8.99 ksi) for ZSnSb4-4, about 6% more. ZSnSb4-4 is harder — 20 HB against 17 HB for Babbitt Grade 1 (Tin-Base) — which matters for wear surfaces and threads. On the shop floor, Babbitt Grade 1 (Tin-Base) forms better (good vs poor).

Babbitt Grade 1 (Tin-Base)Choose it when strength drives the design.

ZSnSb4-4Choose it when surface hardness matters.

Babbitt Grade 1 (Tin-Base) vs ZSnSb4-4: properties

Babbitt Grade 1 (Tin-Base)ZSnSb4-4

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

52 GPa7.5 Msi
51 GPa7.4 Msi

Bulk Modulus

55 GPa8 Msi
50 GPa7.3 Msi

Tensile Strength (Ultimate)

66 MPa9.6 ksi
62 MPa9 ksi

Compressive Strength

89 MPa12.9 ksi
89 MPa12.9 ksi

Fatigue Strength (Endurance Limit)

28 MPa4.1 ksi
27 MPa3.9 ksi

Hardness, Brinell

17 HB
20 HB

Shear Strength

—
35 MPa5.1 ksi

Charpy V-Notch Impact (RT)

—
6 J4.4 ft·lbf

Hardness, Vickers

—
21 HV

Same in both: Shear Modulus 19 GPa2.8 Msi · Poisson's Ratio 0.33 · Yield Strength (0.2% offset) 30 MPa4.4 ksi · Elongation at Break 8%

Physical

Density and transition temperatures.

Same in both: Density 7.34 g/cm³0.27 lb/in³ · Melting Point (Solidus) 223°C433 °F · Liquidus Temperature 371°C700 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

56 W/m·K32.4 BTU/hr·ft·°F
52 W/m·K30 BTU/hr·ft·°F

Specific Heat Capacity

226 J/kg·K0.05 BTU/lb·°F
230 J/kg·K0.05 BTU/lb·°F

Latent Heat of Fusion

55 J/g23.6 BTU/lb
60 J/g25.8 BTU/lb

Same in both: Thermal Expansion (CTE, 20–100 °C) 23 µm/m·K12.8 µin/in·°F · Max Service Temperature (continuous) 120°C248 °F · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 9 % IACS · Electrical Resistivity 1.9×10⁻⁷ Ω·m7.48 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

60 / 100
55 / 100

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

90 / 100
85 / 100

Formability (cold)

55 / 100
30 / 100

Castability

95 / 100
90 / 100

Brazeability / Solderability

95 / 100
90 / 100

Polishability

70 / 100
60 / 100

Same in both: Weldability 20 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

250 MJ/kg107,481 BTU/lb
310 MJ/kg133,276 BTU/lb

Embodied Carbon (primary production)

16 kg CO₂/kg
18 kg CO₂/kg

Embodied Water

400 L/kg47.9 gal/lb
500 L/kg59.9 gal/lb

Same in both: Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

9 kN·m/kg
8 kN·m/kg

Specific Stiffness (E / density)

7.1 MN·m/kg
6.9 MN·m/kg

Thermal Diffusivity

33.8 mm²/s
30.8 mm²/s

Same in both: Modulus of Resilience 9 kJ/m³ · 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.

125102050891011Density (g/cm³)Yield strength (MPa) — log scaleBabbitt Grade 1 (Tin-Base)ZSnSb4-4

Manufacturing and finishing

CapabilityBabbitt Grade 1 (Tin-Base)ZSnSb4-4
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Babbitt Grade 1 (Tin-Base) vs ZSnSb4-4 — frequently asked

Is Babbitt Grade 1 (Tin-Base) stronger than ZSnSb4-4?

Yes. Babbitt Grade 1 (Tin-Base) has a typical tensile strength of 66 MPa (9.57 ksi) against 62 MPa (8.99 ksi) for ZSnSb4-4 — about 6% more.

Which is cheaper, Babbitt Grade 1 (Tin-Base) or ZSnSb4-4?

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, Babbitt Grade 1 (Tin-Base) or ZSnSb4-4?

Babbitt Grade 1 (Tin-Base), by a small margin. Both rate excellent for machinability — 90/100 against 85/100 for ZSnSb4-4.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Babbitt Grade 1 (Tin-Base) and ZSnSb4-4 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.