ZIRCONIUM COPPER, C15000, AMZIRC
COMPOSITION |
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ELEMENT | PERCENT | |
MINIMUM | MAXIMUM | |
Copper & Silver | 99.8% | — |
Zirconium | .10 |
.20
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PHYSICAL PROPERTIES |
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ENGLISH UNITS |
METRIC UNITS |
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Melting Range |
1795-1975°F |
980-1080°C |
Density |
.321 lb/cu in. @ 68°F |
8.89 gm/cm@ 20°C |
Specific Gravity |
8.89 |
8.89 |
Coefficient of Thermal Expansion |
.000094 per °F (68-572°F) |
.000017 per °C (20-300°C) |
Thermal Conductivity |
212 BTU/sq ft/ft/hr/°F @ 68°F |
.876 cal/sq cm/cm/sec/°C @ 20°C |
Electrical Resistivity (Aged) |
11.2 Ohms circ mil per ft @ 68°F |
1.86 microhm – cm @ 20°C |
Electrical Conductivity (Aged)† |
93% Copper IACS @ 68°F |
.538 megohm cm @ 20°C |
Specific Heat |
.092 BTU/lb/°F @ 68°F |
.092 cal/gm/°C @ 20°C |
Modulus of Elasticity (tension) |
18,700 KSI |
13,000 kg/sq mm |
Modulus of Rigidity (torsion) |
7300 KSI |
5000 kg/sq mm |
Annealing Temperature †† |
1600-1700°F |
870-970°C |
Aging Temperature Annealed Hard |
930-1020°F (1-4 hr.) 700-890°F (1-4 hr.) |
500-550°C (1-4 hr.) 370-475°C (1-4 hr.) |
MECHANICAL PROPERTIES |
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For Round and Square Wire, after aging at 750°F (400°C) for one hour | |||||
DESIGNATION | TENSILE STRENGTH | YIELD STRENGTH 2% OFFSET |
PERCENT ELONGATION |
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KSI* | MPa** | KSI* | MPa** | ||
Annealed (A) | 35 | 241 | 10 | 68 | 55 |
Half Hard (1/2H) | 62 | 427 | 53 | 365 | 11 |
Hard (H) | 68 | 468 | 60 | 413 | 10 |
Extra Hard (XH) | 70 | 482 | 62 | 427 | 10.5 |
Spring | 72 | 496 | 63 | 434 | 11 |
MECHANICAL PROPERTIES |
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For Flat Wire, Solution annealed at 1650°F (900°C) for 30 minutes, cold rolled and aged one hour |
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DESIGNATION | TENSILE STRENGTH | YIELD STRENGTH 2% OFFSET |
PERCENT ELONGATION |
AGING |
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KSI* | MPa** | KSI* | MPa** | |||
Half Hard (1/2H) | 45 | 310 | 38 | 262 | 18 | 795°f (425°C) |
Three Quarters Hard (3/4H) | 51 | 351 | 43 | 296 | 15 | |
Hard (H) | 54 | 372 | 45 | 310 | 15 | 750°F (400°C) |
Extra Hard (XH) | 57 | 393 | 50 | 344 | 12 | |
Spring | 60 | 413 | 52 | 358 | 12 | 705°F (375°C) |
MECHANICAL PROPERTIES |
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Retention of Room Temperature Properties |
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EXPOSURE TEMPERATURE | TENSILE STRENGTH | |||
BEFORE EXPOSURE | AFTER EXPOSURE | |||
KSI* | MPa** | KSI* | MPa** | |
660°F (350°C) | 69 | 475 | 67 | — |
750°F (400°C) | 67.5 | 465 | 62 | — |
Endurance Strength Compared with Copper |
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Zirconium Copper | 28 KSI for 100,000,000 Cycles |
Pure Copper | 17 KSI for 100,000,000 Cycles |
* 1 KSI equals 1,000 PSI
** 1 KSI equals 6.894,757 MPa
†† Tensile Strength and Grain Size determining factors for acceptance or rejection.
Values for reference only. Not part of specification.
ZIRCONIUM COPPER, C15000, AMZIRC
Related Reading
Beryllium Copper wire, Plated wire, Phosphor Bronze wire – Little Falls Alloys offers a full service approach to the Flat wire and Square wire.