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Обзор
Invar 36 (UNS K93600 / ASTM F1684) forge blank is a billet or bloom forged from 36% nickel-iron alloy, engineered for applications demanding extremely low coefficient of thermal expansion (CTE) over a broad temperature range. Forge blanks serve as feedstock for machining precision components such as gauge blocks, standards, optical housings, and instrumentation bases. Forging refines ingot structure, improves homogeneity, and provides uniform mechanical properties in the finished blank.
Спецификация Марки
| Система | Значение |
|---|---|
| 🇺🇸 uns | K93600 |
| 🇪🇺 en | EN 1.3912 |
| 🇩🇪 din | 1.3912 / Ni-Fe 36 |
Химический Состав
| Элемент | Значение |
|---|---|
| C | ≤ 0.05 |
| Mn | ≤ 0.35 |
| Si | ≤ 0.25 |
| P | ≤ 0.020 |
| S | ≤ 0.020 |
| Al | ≤ 0.10 |
| Cr | ≤ 0.25 |
| Co | ≤ 0.50 |
| Cu | ≤ 0.20 |
| Mo | ≤ 0.10 |
| Ni | 35.0 – 37.0 |
Механические Свойства
| productCenter.property | Значение |
|---|---|
| Tensile Strength (MPa) | 440 – 520 |
| Yield Strength (MPa, 0.2% offset) | 240 – 300 |
| Elongation (%) | 30 – 45 |
| Reduction of Area (%) | 55 – 70 |
| Hardness (HB) | 125 – 160 |
| Hardness (HRB) | 65 – 75 |
| Elastic Modulus (GPa) | 141 – 148 |
| Modulus of Rigidity (GPa) | 60 – 61 |
| Poisson's Ratio | 0.23 – 0.28 |
| Impact Energy, Charpy V-Notch (J) | 50 – 75 |
| Fatigue Strength (MPa, 10⁷ cycles) | 170 – 210 |
Физические Свойства
| Свойство | Единица | Значение |
|---|---|---|
| Density (g/cm³) | g/cm³ | 8.05 |
| Melting Range (°C) | °C | 1425 – 1445 |
| Solidus Temperature (°C) | - | 1425 |
| Liquidus Temperature (°C) | - | 1445 |
| Curie Temperature (°C) | - | 280 |
| Specific Heat (J/kg·K, 25°C) | J/kg·K | 515 |
| Thermal Conductivity (W/m·K, 25°C) | W/m·K | 13.0 |
| Electrical Resistivity (nΩ·m, 25°C) | μΩ·cm | 820 |
Применение
- Precision Measurement & Metrology
- Aerospace & Defense
- Electronics & Telecommunications
- Industrial & Scientific Instruments
- Energy & Transportation
- Cryogenic Engineering