Material Type: Phosphor Bronze (A)
Material Group: Copper Base Alloy Strip
Phosphor Bronze springs are made from a copper-based alloy strip known for its strong balance of corrosion resistance, electrical conductivity, and mechanical durability. This cold-rolled material is commonly used in spring manufacturing where consistent performance and long-term reliability are required.
Well-suited for a wide range of industrial and electrical applications, phosphor bronze springs are valued for their strength, fatigue resistance, and stable performance in moderate environments. They are frequently specified for stamped components, flat springs, and custom spring designs where precision and durability are critical.
Available in strip and sheet/plate forms, Phosphor Bronze (A) provides a versatile solution for engineered spring applications across multiple industries.
Wire: No Strip: Yes Sheet/Plate: Yes
Engineering Data
| E Mpa | 103,000 | Min Size (in) | 0.003 |
| E psi | 15,000,000 | Max Size (in) | 0.188 |
| G Mpa | 43,000 | Min Size (mm) | 0.080 |
| G psi | 6,300,000 | Max Size (in) | 5.000 |
| Density g/cm3 | 8.860 | Surface Min | b |
| Density lb/in3 | 0.320 | Max Temp °C | 95 |
| Conductivity | 15 | Max Temp °F | 200 |
All materials specifications are provided for general reference purposes only.
| E Mpa | Young's Modulus | These factors can vary with cold work, heat treating and operational stress. | |
| E psi | |||
| G Mpa | Modulus of Rigidity | ||
| G psi | |||
| Conductivity | % IACS | ||
| Surface Min | Typical Surface Quality | a | Maximum defect depth: 0 to 0.5% of d or t |
| b | Maximum defect depth: 1.0% of d or t | ||
| c | Defect depth:less that 3.5% of d or t | ||
| Min Size | Sizes commonly available for wire or strip | Special sizes may be available at additional cost. | |
| Max Size | |||
| Max Temp | Maximum service temperature |
May vary due to operating stress |
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Ready to get started? Send us your CAD drawing or request a quote, and our engineering team will help you develop the right custom spring for your application.
