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C17500/C17510 offer a combination of high electrical and thermal conductivity with good strength compared to most copper based alloys. C17500 alloy is the mirror image of alloy C17510 in terms of its properties and characteristics. The alloys differ in that C17500 specifies a cobalt alloying addition (2.40-2.70 %) and alloy 17510 specifies a nickel alloying addition (1.40-2.20 %), but their performance are the same. Typical uses: fuse clips, fasteners, springs, switch and relay parts, electrical conductors and welding equipment.
| Weight % | Be | Co | Fe | Cu | Other |
|---|---|---|---|---|---|
| minimum | 0.40 | 2.40 | — | 96.90 | — |
| maximum | 0.70 | 2.70 | 0.10 | 0.50 |
| Characteristics | English | Metric | |
|---|---|---|---|
| Nominal density
(68°F/20°C) |
0.316 lbs/in3 | 8.75 g/cm3 | |
| Specific heat
(212 °F/100°C) |
0.10 BTU/lb – °F | 420 J/KG- °K | |
| Melting range | 1890-1960 °F | 1030-1070 °C | |
| Coefficient of thermal expansion | 68°F – 392°F
20°C – 200°C |
9.8 micro in/in- °F | 17.6 micro m/m- °K |
| Electrical resistivity | 20°C / 68°F | 29-86 nΩ ∙ m | |
| Temper | Tensile | Electrical
Conductivity |
|||||
|---|---|---|---|---|---|---|---|
| Ultimate | Yield | Elongation in
50 mm (2 in.) |
%IACS | ||||
| KSI | MPa | KSI | MPa | % | %IACS | ||
| TB00 – Solution
Heat Treated |
1.27-6.35 mm
(0.05-0.50 in.) |
35-55 | 241-378 | 10-30 | 69-207 | 20-60 | 20-30 |
| TD04 – Solution
Heat Treated and Cold Worked: Hard (H) |
1.27-6.35 mm
(0.05-0.50 in.) |
65-80 | 447-550 | 55-75 | 378-516 | 2-20 | 20-30 |
| TF00 – Precipitation Hardened (AT)
3 hr at 482-496°C |
1.27-6.35 mm
(0.05-0.50 in.) |
100-130 | 688-895 | 80-110 | 550-757 | 10 min | 45-60 |
| TH04 –
Hard and Precipitation Heat Treated (HT) 2 hr at 482-496°C |
1.27-6.35 mm
(0.05-0.50 in.) |
110-140 | 757-964 | 95-125 | 655-860 | 10 min | 48-60 |
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