Overview
C19210 is a copper iron alloy with high conductivity and excellent stability at elevated temperatures, with softening resistance and stress relaxation performance exceeding that of both C19400 and C19700.
Physical Properties
| Annealing Range (Min) | 840 °F |
| Annealing Range (Max) | 1020 °F |
| Density | 0.323 lb/in³ |
| Electrical Resistivity (Annealed) | 13 Ω·cir-mil/ft @ 68 °F |
| Electrical Conductivity (Annealed) | 80% IACS @ 68 °F |
| Coefficient of Thermal Expansion | 9.4 per °F (68-572 °F) |
| Modulus of Elasticity (Tension) | 18 ksi |
| Melting Point (Solidus) | 1,620 °F |
| Melting Point (Liquidus) | 1,880 °F |
| Annealing Range (Min) | 449 °C |
| Annealing Range (Max) | 549 °C |
| Density | 8.94 gm/cm³ |
| Electrical Resistivity (Annealed) | 2.16 µΩ·cm @ 20 °C |
| Electrical Conductivity (Annealed) | 0.47 MS·cm @ 20 °C |
| Coefficient of Thermal Expansion | 16.9 per °C (20-300 °C) |
| Modulus of Elasticity (Tension) | 125 Mpa |
| Melting Point (Solidus) | 882 °C |
| Melting Point (Liquidus) | 1,027 °C |
Round Wire
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (ksi) |
MILL LIMITS (inch) |
|
| Min | Max | |||
| Annealed | O61 | 27.0 | 42.0 | .0010 - .1285 inch |
| 1/4 Hard | H01 | 44.0 | 56.0 | |
| 1/2 Hard | H02 | 52.0 | 64.0 | |
| 3/4 Hard | H03 | 58.0 | 70.0 | |
| Hard | H04 | 62.0 | 74.0 | |
| Extra Hard | H06 | 65.0 | 77.0 | |
| Spring | H08 | 68.0 | 80.0 | |
| Extra Spring | H10 | 70.0 | ||
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (Mpa) |
MILL LIMITS (mm) |
|
| Min | Max | |||
| Annealed | O61 | 180 | 290 | .0254 - 3.264 mm |
| 1/4 Hard | H01 | 300 | 390 | |
| 1/2 Hard | H02 | 350 | 450 | |
| 3/4 Hard | H03 | 390 | 490 | |
| Hard | H04 | 420 | 520 | |
| Extra Hard | H06 | 440 | 540 | |
| Spring | H08 | 460 | 560 | |
| Extra Spring | H10 | 480 | ||
Square Wire
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (ksi) |
MILL LIMITS (inch) |
|
| Min | Max | |||
| Annealed | O61 | 27.0 | 42.0 | .0100 - .0808 inch |
| 1/4 Hard | H01 | 44.0 | 56.0 | |
| 1/2 Hard | H02 | 52.0 | 64.0 | |
| 3/4 Hard | H03 | 58.0 | 70.0 | |
| Hard | H04 | 62.0 | 74.0 | |
| Extra Hard | H06 | 65.0 | 77.0 | |
| Spring | H08 | 68.0 | 80.0 | |
| Extra Spring | H10 | 70.0 | ||
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (Mpa) |
MILL LIMITS (mm) |
|
| Min | Max | |||
| Annealed | O61 | 180 | 290 | .2540 - 1.905 mm |
| 1/4 Hard | H01 | 300 | 390 | |
| 1/2 Hard | H02 | 350 | 450 | |
| 3/4 Hard | H03 | 390 | 490 | |
| Hard | H04 | 420 | 520 | |
| Extra Hard | H06 | 440 | 540 | |
| Spring | H08 | 460 | 560 | |
| Extra Spring | H10 | 480 | ||
Rolled Flat
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (ksi) |
MILL LIMITS (inch) |
|
| Min | Max | |||
| Annealed | O61 | 27.0 | 42.0 | Thickness: .0100 - .0500 inch Width: .0150 - .2500 inch |
| 1/4 Hard | H01 | 43.0 | 53.0 | |
| 1/2 Hard | H02 | 47.0 | 60.0 | |
| 3/4 Hard | H03 | 52.0 | 62.0 | |
| Hard | H04 | 56.0 | 66.0 | |
| Extra Hard | H06 | 60.0 | 70.0 | |
| Spring | H08 | 64.0 | 74.0 | |
| Extra Spring | H10 | 66.0 | ||
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH (Mpa) |
MILL LIMITS (mm) |
|
| Min | Max | |||
| Annealed | O61 | 180 | 290 | Thickness: .2540 - 1.905 mm Width: .3810 - 6.350 mm |
| 1/4 Hard | H01 | 290 | 370 | |
| 1/2 Hard | H02 | 320 | 420 | |
| 3/4 Hard | H03 | 350 | 430 | |
| Hard | H04 | 380 | 460 | |
| Extra Hard | H06 | 410 | 490 | |
| Spring | H08 | 440 | 520 | |
| Extra Spring | H10 | 450 | ||
