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Properties | Annealed | Stress Relieved | Heat Treated From Annealed Condition | Heat Treated From Work Hardened Condition |
---|---|---|---|---|
Resistivity, normal, ohm-cmf (Microhm cm) | 135 (22.4) | 125 (20.8) | 87 (14.5) | 87 (14.5) |
Density, Dwt/in3 (grams/cm3) | 167.5 (15.9) | 167.5 (15.9) | 167.5 (15.9) | 167.5 (15.9) |
Solidus Temperature, °F (°C) | 1700 (925) | 1700 (925) | 1700 (925) | 1700 (925) |
Coeff. of Linear Expansion, °F (°C) | 7x106 (12.6x106) | 7x106 (12.6x106) | 7x106 (12.6x106) | 7x106 (12.6x106) |
Thermal emf vs Platinum, (0-100°C), µV/°C | +3 | +4 | +4 | +4 |
Fatigue Strength (Rotating-Bending) at 108 cycles, psi (MPa) | - | 35,000 | - | 30,000 |
Modulus of Elasticity, psi (MPa) | 16x106 | 16x106 | 16x106 | 16x106 |
Properties | Annealed | Stress Relieved | Heat Treated From Annealed Condition | Heat Treated From Work Hardened Condition |
---|---|---|---|---|
Proportional Limits, psi (MPa) | 70,000 | 120,000 | 115,000 | 130,000 |
Ultimate Tensile Strength, psi
| 85,000-110,000 80,000-110,000 | 130,000-170,000 - | 130,000-165,000 130,000-160,000 | 150,000-200,000 145,000-195,000 |
Elongation, % in 2 inches
| 18 min 16-32 | 4-14 - | 5-12 5-14 | 1-8 2-20 |
Knoop Hardness 100 gram load
| 200-240 200-240 | 270-340 - | 280-350 270-340 | 310-380 290-370 |
Vickers Hardness 100 gram load
| 180-250 180-250 | 270-340 - | 285-360 285-360 | 290-370 290-370 |
Properties | Annealed | Stress Relieved | Heat Treated From Annealed Condition | Heat Treated From Work Hardened Condition |
---|---|---|---|---|
Proportional Limits, psi (MPa) | 65,000 | - | 115,000 | 130,000 |
Ultimate Tensile Strength, psi
| 85,000-115,000 | - | 125,000-155,000 | 140,000-180,000 |
Elongation, % in 2 inches
| 12-26 20-36 | - - | 3-12 3-12 | 2-10 2-10 |
Knoop Hardness 100 gram load
| 200-250 | - | 270-340 | 290-370 |
Knoop Hardness 100 gram load
| 180-250 | - | 275-350 | 285-365 |
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