Babbitt Grade 2 (Sn-7.5Sb-3.5Cu) tin-base vs Babbitt Grade 3 (Sn-8Sb-8Cu) tin-base
Property comparison of Babbitt Grade 2 (Sn-7.5Sb-3.5Cu) tin-base and Babbitt Grade 3 (Sn-8Sb-8Cu) tin-base, both tin alloy.
| Property | Babbitt Grade 2 (Sn-7.5Sb-3.5Cu) tin-base | Babbitt Grade 3 (Sn-8Sb-8Cu) tin-base | Difference |
|---|---|---|---|
| Yield strength | 42 MPa | 45 MPa | +7% |
| Tensile strength | 77 MPa | 69 MPa | -10% |
| Elongation | 18 % | 1 % | -94% |
| Elastic modulus | 52,000 MPa | 52,000 MPa | 0% |
| Density | 7,390 kg/m³ | 7,460 kg/m³ | +1% |
| Brinell hardness | 24.5 HB | 27 HB | +10% |
| Coefficient of thermal expansion | 0.000022 1/K | 0.000022 1/K | 0% |
| Melting point | 298 °C | 331 °C | +11% |
Difference is Babbitt Grade 3 (Sn-8Sb-8Cu) tin-base relative to Babbitt Grade 2 (Sn-7.5Sb-3.5Cu) tin-base. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- Grade 2 tin-base
- standard
- ASTM B23
- heat treatment
- chill cast
- grade
- Grade 3 tin-base
- standard
- ASTM B23
- heat treatment
- chill cast
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