Permalloy 80 Pipe (ASTM A753 / Ni80 / UNS N14080)
Permalloy 80 Pipe (ASTM A753 / Ni80 / UNS N14080)
Soft Magnetic Alloy Tube | ZYTC Alloy
It is widely applied in precision transformers, high-frequency transformers, magnetic shielding housings, audio and video recording components, and high-sensitivity relays, exclusively for high-value precision electromagnetic equipment scenarios.
ZYTC Alloy, a professional Chinese manufacturer of high-precision soft magnetic alloys, supplies premium Permalloy 80 (Ni80) seamless pipes compliant with ASTM A753 and global equivalent standards (UNS N14080 / GB 1J79).
Chemical Composition
(The absolute focus of acceptance testing)
Permalloy is not a single brand name, but a family of brands. Specific brands must be clearly identified during procurement.
| Weight% | Permalloy 80 |
| Ni | 78.50 ~ 80.50 |
| Mo | 3.80 ~ 4.20 |
| Mn | ¡Ü 0.60 |
| Si | ¡Ü 0.30 |
| Cr | ¡Ü 0.20 |
Key electromagnetic performance indicators
(Data must be requested during procurement) The following is a typical range for seamless annealed pipes:
| Material | (Annealed state) |
|
Initial Permeability ¦Ìi |
30,000 - 100,000 |
| Maximum Permeability ¦Ìm | 100,000 - 500,000 |
| Coercivity Hc | ¡Ü 1.5 A/m |
| Saturation magnetic induction intensity Bs | 0.75-0.85T |
Mechanical properties (minor but necessary to know):
In the annealed state, it is very soft, with very low strength and hardness, but good plasticity. Its mechanical properties are negligible compared to its electromagnetic properties.
Authoritative Industry Standards & Procurement Specifications
Applicable Standards
Manufacturing Difficulties & Process Advantages
- High-purity smelting: Adopts vacuum induction melting (VIM) technology to precisely control nickel content (¡À0.5% error control), eliminating impurities that affect magnetic performance.
- Complex forming process: Narrow hot-working temperature window prevents cracking; severe work hardening during cold drawing requires multiple intermediate annealing treatments for forming.
- Definitive final annealing process: High-temperature long-time annealing under pure hydrogen or high vacuum environment relieves internal stress, optimizes grain structure, and activates optimal magnetic properties ¡ª the core process determining product quality.
- Post-processing restrictions: Finished Permalloy 80 pipes cannot be welded, reheated at high temperature or severely cold-deformed. ZYTC Alloy recommends customers purchase finished-size annealed pipes to avoid performance attenuation caused by secondary processing.
Applications
- Precision & high-frequency transformers
- High-sensitivity magnetic shielding sleeves and housings
- Audio and video precision recording components
- High-precision relays and weak magnetic signal transmis
ZYTC Alloy Supply Advantages
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