High Performance Soft Magnetic Alloy Strip/1j85 Permalloy Precision 1j79 1j85 1j87 Strip Elinvar Alloy Flat Wire
Mainly used in two areas for energy conversion and information processing
In the power industry, mainly in the high magnetic field has a high magnetic induction and low core loss of the alloy. In the electronics industry, mainly at low or medium alloy having a high magnetic permeability and low coercive force. At high frequencies shall be made on a thin strip or alloy higher resistivity. Usually with sheet or strip.
Soft magnetic materials in exchange for use, due to the alternating magnetic eddy currents are induced inside the material, resulting in the loss, the smaller the resistance of the alloy, the greater the thickness, the higher the frequency of the alternating magnetic field, eddy current losses greater, magnetic reduce more. For this, the material must be made thinner sheet (tape), and the surface coated with an insulating layer, or the use of certain methods to the surface to form an oxide insulating layer, such alloys commonly used magnesium oxide electrophoresis coating.
Iron-nickel alloy mostly in the alternating magnetic field use, mainly for yoke iron, relay, Small Power Transformers and Magnetically shielded.
The following are details of our products 1J80:
Chemical composition
| composition | C | P | S | Mn | Si |
| ≤ | |||||
| Content(%) | 0.03 | 0.020 | 0.020 | 0.60~1.10 | 1.10~1.50 |
| composition | Ni | Cr | Mo | Cu | Fe |
| Content(%) | 79.0~81.5 | 2.60~3.00 | - | ≤0.2 | Bal |
Heat treatment system
| shop sign | Annealing medium | heating temperature | Keep the temperature time/h | Cooling rate |
| 1j80 | Dry hydrogen or vacuum, pressure is not greater than 0.1 Pa | Along with the furnace heating up 1100~1150ºC | 3~6 | In 100 ~ 200 ºC / h speed cooling to 400~500 ºC, fast to 200 ºC draw a charge |
1J06,1J12,1J17,1J18,1J22,1J30,1J36,1J38,1J46,1J50,1J51,1J54,1J76,1J77,1J79,1J80,1J85,1J87
Permanent magnet alloy not only has high hardness and mechanical properties, but also has strong anti-demagnetization ability, high coercivity value (greater than 20kA/m), magnetic "hard" and other characteristics, so it is also called hard magnetic alloy.
2J04,2J07,2J09,2J10,2J31,2J53,2J84,2J85
Elastic alloys include high elastic alloys and constant elastic alloys. It is used to make elastic elements such as elastic sensitive elements, energy storage elements and frequency elements in precision instruments.
3J01,3J21,3J53
Expansion alloys(Invar Alloy) are divided into Kovar alloys, ceramic sealing alloys, low expansion alloys, and constant expansion alloys. Widely used in electronic industry, precision measuring tools, precision instruments and low temperature engineering and other fields.
4J28,4J29,4J32,4J33,4J36,4J40,4J42,4J50
Precision alloys with nickel, chromium, aluminum and iron as the main components, the resistivity is about three times higher than that of manganese copper, and has a lower temperature coefficient of resistance and low thermal potential to copper, with good long-term resistance stability and resistance. Oxidation properties.
It is suitable for making precision resistance elements in various measuring instruments and meters, making precision micro-resistance elements and strain gauges.
6J10,6J15,6J20,6J22,6J23,6J24
| expansion alloy | ||||||||||
| Grade | C≤ | S≤ | P≤ | Mn | Si | Ni | Cr | Cu | Al | Fe |
| 6J10 | ≤0.05 | ≤0.01 | ≤0.01 | ≤0.3 | ≤0.2 | nI+cO rem | 9-10 | ≤0.2 | ≤0.4 | |
| 6J15 | ≤0.05 | ≤0.02 | ≤0.03 | ≤1.5 | 0.4-1.3 | 55-61 | 15-18 | ≤0.3 | rem | |
| 6J20 | ≤0.05 | ≤0.01 | ≤0.01 | ≤0.7 | 0.4-1.3 | rem | 20-23 | ≤0.3 | ≥1.5 | |
| 6J22 | ≤0.04 | ≤0.01 | ≤0.01 | 0.5-1.5 | ≤0.2 | rem | 19-21.5 | 2.7-3.2 | 2-3 | |
| 6J23 | ≤0.04 | ≤0.01 | ≤0.01 | 0.5-1.5 | ≤0.2 | rem | 19-21.5 | 2-3 | 2.7-3.2 | |
| 6J24 | ≤0.04 | ≤0.01 | ≤0.01 | 1.0-3.0 | 0.9-1.5 | rem | 19-21.5 | 2.7-3.2 | ≤0.5 | |
The Minimum Order Quantity (MOQ) for our soft magnetic alloy products is generally 50-100kg. This requirement ensures chemical homogeneity during the induction melting process and maintains quality stability throughout precision cold rolling and slitting. For specific grades or large-scale projects, the MOQ can be negotiated based on production schedules and specific requirements.
Our lead time is generally 10-25 working days. This timeframe covers the entire process, including vacuum induction melting (VIM), multi-stage cold rolling, intermediate annealing, final precision slitting, and rigorous quality inspection. The exact delivery time will be confirmed in the contract based on order volume, processing complexity (e.g., ultra-thin 0.02mm specifications), and current workshop scheduling.
Yes. We operate advanced precision cold rolling, drawing, and slitting lines to provide:
- Ultra-thin Strips: Thickness range from 0.02mm to 0.1mm.
- Precision Flat Wire: Customized width-to-thickness ratios, ideal for miniature sensor coils and high-precision windings.
- Precision Slitting: Strips can be slit to widths of 2mm and above, with tolerances strictly controlled within +/-0.05mm.
Every shipment is accompanied by a Material Test Certificate (MTC), which includes core technical data:
- Chemical Composition Analysis: Ensuring Ni-Fe ratios and impurity controls meet international standards.
- Physical Properties: Hardness, tensile strength, and elongation.
- Magnetic Property Test Report: Key indicators such as initial permeability, maximum permeability, and saturation induction (Bs). Third-party testing (e.g., SGS) is also available upon request.
Soft magnetic alloys are extremely sensitive to processing stress:
- Supply State: By default, we supply strips in Cold Rolled Hard or Half-Hard states to facilitate secondary processing like stamping or winding.
- Technical Support: We offer final vacuum annealing services or provide detailed heat treatment guidance (annealing temperatures, soaking times, and cooling rates). For products requiring no further forming, we can supply high-permeability annealed finished parts directly.
We follow strict export packaging standards for precision alloys:
- Multi-layer Protection: Surfaces are coated with anti-rust oil, wrapped in vacuum moisture-proof bags, and shielded with anti-rust paper.
- Robust Packaging: Materials are secured in high-strength wooden boxes or reinforced heavy-duty tubes to prevent deformation from pressure.
- Global Logistics: We maintain long-term partnerships with DHL, FedEx, UPS, and professional sea/air freight forwarders to ensure the safe and reliable delivery of your goods worldwide
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