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Phosphor Bronze Spec Table
Phosphor Bronze KS Specifications — 1 sizes
KS D 6024
Phosphor bronze (copper-tin-phosphorus alloy) with excellent wear resistance, fatigue resistance, and spring properties. Used for springs, bearings, gears, and electrical contacts.
Practical Notes
- Excellent spring properties — used for spring washers, contact springs, and connector terminals.
- High wear and fatigue resistance suit bearings, gears, and bushings. Self-lubricating — advantageous where oiling is difficult.
KSPhosphor Bronze
1 sizes| Name | Type | Tensile | Yield | Hardness | Use |
|---|---|---|---|---|---|
| PBC2(CAC502A) | Phosphor Bronze | ≥300 | ≥120 | HV80~100 | Spring, Bearing, , Gear |
Key Features
- C5191/C5210 (Cu-Sn-P); Sn 6–8% + P 0.1–0.35% for excellent elastic limit and fatigue resistance
- Excellent spring properties (repeated elastic deformation); more economical spring material than beryllium copper
- Wear-resistant, corrosion-resistant, non-magnetic; resists corrosion in seawater and acidic environments
Key Applications
Connector terminal springs, switch contacts, diaphragms, spring washers, bearing bushings
FAQ
What types of phosphor bronze exist?
C5111 (4% Sn)→general, C5191 (6%)→springs/connectors, C5210 (8%)→high-elastic springs. Higher tin = stronger and more elastic but less machinable.