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Casting Metals
Bismuth
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Bismuth alloys expand slightly as they solidify, pushing into the crevices of a mold to produce detailed replicas. These alloys are useful for repairing dies, creating fusible links, and holding delicate parts for machining.
Material Composition | Approximate | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Melting Temp., ° F | Bismuth | Lead | Tin | Cadmium | Thick. | Wd. | Lg. | Wt., lb. | Shape | Each | ||
| 158 | 50% | 27% | 13% | 10% | 1/2" | 3" | — | 1 | Hex Ingot | 8921K12 | 000000 | |
| 160 | 43% | 38% | 11% | 8% | 1/2" | 1 1/2" | 4 1/2" | 1 | Sheet, Bar | 8921K22 | 00000 | |
| 203 | 53% | 32% | 15% | — | 3/4" | 1" | 3" | 1 | Sheet, Bar | 8921K23 | 00000 | |
| 255 | 56% | 44% | — | — | 1/2" | 3" | 3" | 1 | Sheet, Bar | 8921K14 | 00000 | |
| 281 | 40% | — | 60% | — | 1/2" | 1 1/2" | 4 1/2" | 1 | Sheet, Bar | 8921K18 | 00000 | |
| 281 | 58% | — | 42% | — | 1/2" | 1 1/2" | 5 1/2" | 1 | Sheet, Bar | 8921K16 | 00000 | |
High-Density Low-Melting-Point Solder
Lead-Free, No Flux Required
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Lead-free solder is safer to use than leaded solder and helps meet industry regulations.
1% Silver—Solder with 1% silver forms stronger bonds than solder without silver. It’s also more malleable and ductile. However, it has a higher melting point, so it takes longer to solder.
