Ni31Fe Plate – Temperature Compensating Soft Magnetic Alloy
Product Short Description
Ni31Fe Plate is a nickel-iron temperature compensating soft magnetic alloy plate designed for precision electromagnetic components, sensors, relays, measuring instruments and temperature-sensitive control devices. With approximately 31% nickel content and balance iron, Ni31Fe offers stable magnetic performance under temperature variation, making it suitable for applications requiring magnetic temperature compensation and reliable dimensional control.
SASA ALLOY supplies Ni31Fe Plate in customized thickness, width, length and surface condition according to customer drawings and technical requirements. Products can be supplied with chemical composition analysis, mechanical testing, magnetic property testing, PMI testing, dimensional inspection, surface inspection, EN 10204 3.1 material certificate and full heat number traceability.
- Product Name: Ni31Fe Plate
- Material Grade: Ni31Fe / 31Ni-Fe / Temperature Compensating Alloy
- Product Type: Nickel-Iron Soft Magnetic Alloy Plate
- Main Feature: Magnetic temperature compensation and stable soft magnetic performance
- Applications: Sensors, relays, meters, precision instruments and electromagnetic control components
Product Parameters
| Item | Specification |
|---|---|
| Product Name | Ni31Fe Plate |
| Material Grade | Ni31Fe / 31Ni-Fe / Temperature Compensating Alloy |
| Material Type | Nickel-Iron Soft Magnetic Alloy |
| Product Form | Plate, Sheet, Strip, Flat Bar, Cut Plate, Machined Plate |
| Thickness | 0.5 mm – 50 mm or customized |
| Width | 50 mm – 2000 mm or customized |
| Length | 500 mm – 6000 mm or cut to size |
| Surface Condition | Hot Rolled, Cold Rolled, Pickled, Bright, Polished, Ground, Machined |
| Standard | Customer Specification, GB, ASTM, EN, DIN, JIS or agreed technical requirement |
| Inspection | Chemical Analysis, Mechanical Test, Magnetic Property Test, PMI Test, Dimensional Inspection |
| Certificate | EN 10204 3.1 Material Certificate available |
| Processing Service | Cutting, Shearing, Grinding, Polishing, CNC Machining, Custom Size Processing |
Chemical Composition
The chemical composition of Ni31Fe Plate is designed to provide stable magnetic performance and temperature compensation behavior. The following values are for general reference only. Final composition should be confirmed according to the applicable standard, purchase order and mill test certificate.
| Element | Ni | Fe | C | Mn | Si | P | S | Cu | Cr | Co |
|---|---|---|---|---|---|---|---|---|---|---|
| Content % | 30.0 – 32.0 | Balance | ≤0.05 | ≤0.60 | ≤0.30 | ≤0.020 | ≤0.020 | ≤0.30 | ≤0.25 | ≤0.50 |
Mechanical Properties
Mechanical properties of Ni31Fe Plate may vary depending on thickness, cold working ratio, heat treatment condition and final application requirements. For soft magnetic alloy applications, magnetic properties and heat treatment condition should be confirmed together with mechanical values.
| Condition | Tensile Strength | Yield Strength | Elongation | Hardness | Density |
|---|---|---|---|---|---|
| Annealed / Typical | 400 – 600 MPa | According to condition | 20% min | According to condition | Approx. 8.1 g/cm³ |
| Cold Rolled / Custom | According to order | According to order | According to order | According to order | Approx. 8.1 g/cm³ |
Note: For Ni31Fe temperature compensating alloy, magnetic property stability, temperature response, permeability behavior and heat treatment condition are often more important than conventional strength values.
Common Size Table
| Product Form | Size Range | Surface | Availability |
|---|---|---|---|
| Ni31Fe Sheet | 0.5 – 6.0 mm thickness | Cold Rolled / Pickled / Polished | Stock / Production |
| Ni31Fe Plate | 6 – 50 mm thickness | Hot Rolled / Ground / Machined | Production / Made to Order |
| Ni31Fe Strip | 0.02 – 3.0 mm thickness | Cold Rolled / Bright / Annealed | Production / Customized |
| Ni31Fe Cut Plate | Customized thickness, width and length | Cut / Ground / Machined | Made to Order |
Different Specifications Comparison
| Type | Product Form | Typical Surface | Typical Use |
|---|---|---|---|
| Ni31Fe Sheet | Thin sheet, small plate | Cold Rolled / Pickled / Polished | Precision instrument parts, sensor parts and stamped components |
| Ni31Fe Plate | Plate, cut plate, machined plate | Hot Rolled / Ground / Machined | Electromagnetic components, control devices and precision assemblies |
| Ni31Fe Strip | Thin strip or foil | Bright / Annealed / Cold Rolled | Temperature compensation elements, relays and small magnetic parts |
| Ni31Fe Custom Parts | Custom CNC components | Machined / Ground / Polished | Temperature compensation modules and precision electromagnetic systems |
Equivalent Standards and International Names
Ni31Fe Plate may be known by different names in different markets. Customers may search for Ni31Fe Plate, 31Ni-Fe alloy plate, temperature compensating alloy plate, nickel iron magnetic alloy plate or soft magnetic compensation alloy plate.
| Category | Common Name | Equivalent / Description |
|---|---|---|
| Nickel-Iron System | Ni31Fe Plate | Approximately 31% Nickel-Iron Alloy Plate |
| Alternative Name | 31Ni-Fe Alloy Plate | Nickel Iron Temperature Compensating Alloy Plate |
| Application Name | Temperature Compensating Alloy Plate | Magnetic temperature compensation material |
| Material Family | Soft Magnetic Alloy Plate | Precision magnetic alloy material |
| Custom Specification | Customer Drawing / Technical Requirement | Ni31Fe equivalent material can be produced according to order |
Production Process Flow
The production process of Ni31Fe Plate requires strict control of chemical composition, melting quality, rolling condition, heat treatment and dimensional accuracy to ensure stable magnetic performance and reliable temperature compensation behavior.
| Process Step | Description | Quality Control Point |
|---|---|---|
| Raw Material Selection | Select qualified nickel and iron raw materials | Raw material certificate and traceability |
| Melting | Control alloy composition and impurity elements | Chemical composition analysis |
| Rolling | Hot rolling or cold rolling according to thickness | Thickness, flatness and dimensional control |
| Annealing | Heat treatment to improve magnetic properties and stability | Temperature, atmosphere and holding time control |
| Inspection | Final inspection before shipment | Dimension, surface, PMI, certificate review |
Product Inspection
1. Chemical Composition Inspection
Chemical composition analysis is performed to verify nickel and iron content. Stable chemical composition is essential for Ni31Fe Plate temperature compensating performance and material consistency.
2. Mechanical Properties Testing
Tensile strength, elongation and hardness can be tested according to customer requirements. Mechanical testing helps confirm material reliability for precision manufacturing and forming applications.
3. Magnetic Property Verification
Magnetic property testing can be arranged when required. This is important for applications involving temperature compensation, sensors, relays and precision electromagnetic components.
4. Dimensional Inspection and PMI Testing
Thickness, width, length, flatness and tolerance are inspected before shipment. PMI testing can be used to verify material grade and prevent material mix-up.
Product Packaging
SASA ALLOY provides export-grade packaging for Ni31Fe Plate to protect the material during sea, air and land transportation.
- Protective Film: Applied to polished or bright surfaces to reduce scratches.
- Waterproof Wrapping: Used to protect plates from moisture during transportation.
- Wooden Case Packaging: Suitable for cut plates and precision machined plates.
- Pallet Packing: Suitable for heavy plates and batch shipments.
- Clear Marking: Grade, heat number, size, quantity and customer PO number can be marked on labels.
Applications
Ni31Fe Plate is widely used where magnetic performance must remain stable or predictable under temperature changes. It is suitable for precision electromagnetic and measuring applications.
| Industry | Typical Applications | Why Ni31Fe Plate Is Used |
|---|---|---|
| Precision Instruments | Meters, measuring devices, compensation elements | Stable magnetic temperature compensation behavior |
| Sensors | Temperature-sensitive magnetic parts, sensor components | Controlled magnetic response under temperature variation |
| Relays and Switches | Relay elements, electromagnetic control parts | Reliable magnetic performance and repeatability |
| Electromagnetic Devices | Magnetic compensation components, small magnetic assemblies | Soft magnetic performance and processing flexibility |
| Industrial Control | Precision control modules and compensation systems | Good material stability and custom processability |
Why Choose SASA ALLOY?
- Professional supplier of Ni31Fe Plate and temperature compensating soft magnetic alloy materials
- Available in plate, sheet, strip, flat bar and custom machined parts
- Customized thickness, width, length and surface condition available
- Support for customer specifications, drawings and technical requirements
- Material traceability with heat number control
- EN 10204 3.1 material certificate available
- Chemical analysis, mechanical testing, magnetic property testing, PMI testing and dimensional inspection support
- Export packaging suitable for international transportation
FAQ
What is Ni31Fe Plate?
Ni31Fe Plate is a nickel-iron soft magnetic alloy plate containing approximately 31% nickel. It is used for temperature compensation, sensors, relays and precision electromagnetic components.
What is Ni31Fe Plate mainly used for?
Ni31Fe Plate is mainly used for sensors, relays, meters, precision instruments, magnetic compensation elements and electromagnetic control components.
Can SASA ALLOY provide custom size Ni31Fe Plate?
Yes. SASA ALLOY can supply Ni31Fe Plate in customized thickness, width, length, cut-to-size plate and machined plate according to customer requirements.
Can magnetic property testing be provided?
Yes. Magnetic property testing can be arranged according to customer requirements, especially for precision magnetic and temperature compensation applications.
Can SASA ALLOY provide EN 10204 3.1 certificate?
Yes. EN 10204 3.1 material certificate can be supplied with chemical composition, mechanical properties, heat number and traceability information.
Contact Us
If you are looking for Ni31Fe Plate, 31Ni-Fe Alloy Plate or customized temperature compensating soft magnetic alloy materials, please contact SASA ALLOY with your required grade, thickness, width, length, surface condition, quantity and inspection requirements. Our team can provide professional material solutions for precision magnetic alloy applications.
