A tough, hard form of bronze containing a small amount of phosphorus, used especially for bearings.
- Corrosion rates are higher with hydrochloric acid than with sulphuric acid, but phosphor bronze, aluminium bronze and the CMA alloys are frequently used.
- Overall, the wear resistance of gunmetal is not as good as phosphor bronze.
- The centre boss is made from phosphor bronze, the spool plates and back plate from high grade bar stock aluminium: brass is used for the beautiful caliper check spring, the spokes, and for the reel foot.
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Syllabification: phos·phor bronze
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