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Solder & Low-Melting Alloy Babbitt Grade 2 (Tin-Base) vs Type 1 Casting Pewter

Solder & Low-Melting Alloy · grade comparison

Solder & Low-Melting Alloy Babbitt Grade 2 (Tin-Base) and Type 1 Casting Pewter are both solder & low-melting alloy grades. Babbitt Grade 2 (Tin-Base) is the stronger of the two: yield strength 42 MPa (6.09 ksi) against 34 MPa (4.93 ksi) for Type 1 Casting Pewter, about 24% more; tensile strength follows at 66 MPa (9.57 ksi) vs 58 MPa (8.41 ksi). In exchange, Type 1 Casting Pewter is the more ductile: elongation 30% versus 3% for Babbitt Grade 2 (Tin-Base), and Babbitt Grade 2 (Tin-Base) is harder (25 HB vs 23 HB). Babbitt Grade 2 (Tin-Base) is stiffer (53 GPa vs 47 GPa) and Babbitt Grade 2 (Tin-Base) runs hotter in service (120°C vs 95°C continuous). On the shop floor, Babbitt Grade 2 (Tin-Base) machines more easily (excellent vs very good).

Babbitt Grade 2 (Tin-Base)Choose it when strength drives the design, or when the part sees heat.

Type 1 Casting PewterChoose it when the part is bent, formed or impact-loaded.

Babbitt Grade 2 (Tin-Base) vs Type 1 Casting Pewter: properties

Babbitt Grade 2 (Tin-Base)Type 1 Casting Pewter

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

53 GPa7.7 Msi
47 GPa6.8 Msi

Shear Modulus

20 GPa2.9 Msi
18 GPa2.6 Msi

Bulk Modulus

50 GPa7.3 Msi
47 GPa6.8 Msi

Tensile Strength (Ultimate)

66 MPa9.6 ksi
58 MPa8.4 ksi

Yield Strength (0.2% offset)

42 MPa6.1 ksi
34 MPa4.9 ksi

Elongation at Break

3%
30%

Compressive Strength

105 MPa15.2 ksi
75 MPa10.9 ksi

Fatigue Strength (Endurance Limit)

27 MPa3.9 ksi
20 MPa2.9 ksi

Charpy V-Notch Impact (RT)

3 J2.2 ft·lbf
8 J5.9 ft·lbf

Hardness, Brinell

25 HB
23 HB

Hardness, Vickers

26 HV
24 HV

Reduction in Area

—
38%

Same in both: Poisson's Ratio 0.33 · Shear Strength 40 MPa5.8 ksi

Physical

Density and transition temperatures.

Density

7.39 g/cm³0.27 lb/in³
7.3 g/cm³0.26 lb/in³

Melting Point (Solidus)

241°C466 °F
240°C464 °F

Liquidus Temperature

354°C669 °F
295°C563 °F

Thermal

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

Thermal Conductivity

55 W/m·K31.8 BTU/hr·ft·°F
50 W/m·K28.9 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

23 µm/m·K12.8 µin/in·°F
21.5 µm/m·K11.9 µin/in·°F

Latent Heat of Fusion

60 J/g25.8 BTU/lb
58 J/g24.9 BTU/lb

Max Service Temperature (continuous)

120°C248 °F
95°C203 °F

Same in both: Specific Heat Capacity 230 J/kg·K0.05 BTU/lb·°F · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

8 % IACS
8.5 % IACS

Electrical Resistivity

2.1×10⁻⁷ Ω·m8.27 µΩ·in
2×10⁻⁷ Ω·m7.87 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

50 / 100
62 / 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

85 / 100
72 / 100

Machinability Rating (AISI 1212 = 100 %)

80%
110%

Formability (cold)

20 / 100
45 / 100

Castability

95 / 100
96 / 100

Brazeability / Solderability

90 / 100
95 / 100

Polishability

70 / 100
88 / 100

Same in both: Weldability 20 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

260 MJ/kg111,780 BTU/lb
310 MJ/kg133,276 BTU/lb

Embodied Carbon (primary production)

17 kg CO₂/kg
18 kg CO₂/kg

Embodied Water

400 L/kg47.9 gal/lb
420 L/kg50.3 gal/lb

Typical Recycled Content

30%
35%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

9 kN·m/kg
8 kN·m/kg

Specific Stiffness (E / density)

7.2 MN·m/kg
6.4 MN·m/kg

Modulus of Resilience

17 kJ/m³
12 kJ/m³

Thermal Diffusivity

32.4 mm²/s
29.8 mm²/s

Same in both: 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 2 (Tin-Base)Type 1 Casting Pewter

Manufacturing and finishing

CapabilityBabbitt Grade 2 (Tin-Base)Type 1 Casting Pewter
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Babbitt Grade 2 (Tin-Base) vs Type 1 Casting Pewter — frequently asked

Is Babbitt Grade 2 (Tin-Base) stronger than Type 1 Casting Pewter?

Yes. Babbitt Grade 2 (Tin-Base) has a typical yield strength of 42 MPa (6.09 ksi) against 34 MPa (4.93 ksi) for Type 1 Casting Pewter — about 24% more. Tensile strength is 66 MPa (9.57 ksi) vs 58 MPa (8.41 ksi).

Which is cheaper, Babbitt Grade 2 (Tin-Base) or Type 1 Casting Pewter?

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 2 (Tin-Base) or Type 1 Casting Pewter?

Babbitt Grade 2 (Tin-Base). Its machinability rates excellent (85/100) against very good (72/100) for Type 1 Casting Pewter.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Babbitt Grade 2 (Tin-Base) and Type 1 Casting Pewter 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.