Nickel Cobalt Alloy,Alloy 19,Thermocouple Alloy,Ni1Co Alloy,E FORU

**Product Overview: Nickel Cobalt Alloy 19 (Ni1Co Alloy / Thermocouple Alloy)** Alloy 19, also known as Ni1Co Alloy, is a specialized nickel-cobalt thermocouple alloy designed for precise temperature measurement in high-temperature environments. As the negative leg of Type K thermocouples (paired with Chromel®), this alloy delivers exceptional thermoelectric stability, reproducibility, and accuracy across a wide temperature range, making it indispensable in industrial, scientific, and aerospace applications. --- ### **Key Characteristics & Advantages** - **Stable Thermoelectric Output**: Ensures reliable and repeatable temperature measurements. - **High-Temperature Performance**: Operates effectively in temperatures up to 1260°C (2300°F). - **Oxidation Resistance**: Withstands prolonged exposure to oxidizing atmospheres. - **Excellent EMF Consistency**: Maintains linearity in voltage-temperature response. - **Compatibility**: Pairs with Chromel (KP) to form Type K thermocouples per international standards. --- ### **Chemical Composition (Typical Weight %)** | Element | Content Range (%) | Function Description | |------------------|-------------------|-----------------------| | **Nickel (Ni)** | ~94.0 | Base element ensuring thermoelectric stability. | | **Cobalt (Co)** | ~1.0 | Enhances high-temperature performance and EMF output. | | **Silicon (Si)** | 0.2–0.5 | Improves oxidation resistance. | | **Manganese (Mn)**| 0.2–0.5 | Contributes to thermoelectric properties. | | **Iron (Fe)** | ≤0.5 | Controlled impurity. | | **Carbon (C)** | ≤0.1 | Minimized to avoid carbide formation. | | **Other Elements**| ≤0.3 | Residual elements (Cr, Cu, etc.). | --- ### **Physical Properties** | Property | Typical Value | Test Conditions | |---------------------------------|------------------------|--------------------------| | **Density** | 8.7 g/cm³ | At room temperature | | **Melting Point** | ~1420°C | Approximate | | **Thermal Expansion Coefficient**| 13.0 × 10⁻⁶/°C | 20–1000°C range | | **Thermal Conductivity** | 19.0 W/m·K | At 20°C | | **Electrical Resistivity** | 0.26 μΩ·m | At 20°C | | **Seebeck Coefficient** | -20 to -25 μV/°C | Paired with Chromel (KP) | --- ### **Mechanical Properties** | Property | Typical Value | Test Conditions | |------------------------|----------------------|----------------------------| | **Tensile Strength** | 550–700 MPa | At room temperature | | **Yield Strength** | 250–350 MPa | At 0.2% offset | | **Elongation** | 25–40% | In 50 mm | | **Hardness** | 120–160 HV | Annealed condition | --- ### **International Standards & Specifications** Alloy 19 complies with the following international standards: - **ASTM E230/E230M**: Standard for Thermocouple Wire and Extension Cable. - **IEC 60584-1**: International Standard for Thermocouples (Type K). - **ANSI MC96.1**: American National Standard for Temperature Measurement. - **DIN 43710**: German Standard for Base Metal Thermocouples. - **GB/T 2614**: Chinese Standard for Type K Thermocouple Alloys. --- ### **Applications** 1. **Temperature Measurement Systems**: - Type K thermocouples for industrial furnaces and kilns. - Laboratory and scientific instruments. - Automotive and aerospace engine monitoring. 2. **Energy and Power Generation**: - Boiler temperature monitoring in power plants. - Gas turbine exhaust gas temperature (EGT) sensors. 3. **Manufacturing and Process Industries**: - Glass and ceramic production. - Heat treatment and metal processing. - Petrochemical and refinery applications. 4. **Consumer and Commercial Devices**: - Ovens, water heaters, and HVAC systems. - Food processing and packaging equipment. --- ### **Available Forms** - **Wire**: Single-pair or multi-pair, insulated or bare. - **Strip and Foil**: For surface temperature sensors. - **Extension Cable**: Compensating cables for remote measurement. - **Custom Configurations**: Sheathed thermocouples with MgO insulation. --- **Disclaimer**: *The information provided is for reference purposes. Actual thermoelectric performance may vary depending on wire diameter, insulation, calibration, and operational conditions. Users must validate suitability for specific applications and adhere to relevant industry standards and safety guidelines.*

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3100 gallon liquid totes Special package is available on request.