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C52400 is a phosphor bronze alloy. It has good cold workability for blanking, forming and bending, shearing. Typical uses: heavy bars and plates for severe compression; bridge and expansion plates and fittings; articles requiring good spring qualities, resiliency, fatigue resistance and good wear as well as corrosion resistance.
| Weight % | Cu | Sn | P | Pb | Fe | Zn |
|---|---|---|---|---|---|---|
| minimum | 88.30 | 9.00 | 0.03 | — | — | — |
| maximum | 90.07 | 11.00 | 0.35 | 0.05 | 0.10 | 0.20 |
| Characteristics | English | Metric | ||
|---|---|---|---|---|
| Nominal density
(68°F/20°C) |
0.317 lbs/in3 | 8.78 g/cm3 | ||
| Specific heat
(212 °F/100°C) |
0.09 BTU/lb – °F | 380 J/KG- °K | ||
| Coefficient of thermal
expansion |
68°F – 572°F
20°C – 300°C |
10.2 micro in/in- °F | 18.4 micro m/m- °K | |
| Thermal conductivity
|
20°C / 68°F | 29 BTU/ft- hr – °F | 50 W/m – °K | |
| Electrical resistivity | 20°C / 68°F | 157 nΩ ∙ m | ||
| Electrical conductivity | Volumetric:
20°C / 68°F |
11% IACS | ||
| Temper | Tensile | Hardness | |||
|---|---|---|---|---|---|
| Ultimate | Elongation
in 50 mm (2 in.) |
Rockwell B | |||
| KSI | MPa | % | |||
| OSO35 – 0.035 Grain size | 1 mm
(0.04 in.) thick |
66 | 455 | 68 | 55 |
| H02 – ½ Hard | 83 | 570 | 32 | 92 | |
| H04 – Hard | 100 | 690 | 13 | 97 | |
| H06 – Extra Hard | 115 | 795 | 7 | 100 | |
| H08 – Spring | 122 | 840 | 4 | 101 | |
| H10 – Extra Spring | 128 | 885 | 3 | 103 | |
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