
Magnetic materials play a central role in the functioning of modern electronics and energy systems. Among the precision alloys, 1J50 alloy strip has established itself as a trusted material for applications requiring both stability and efficiency. Known for its balance of nickel and iron, this alloy combines high permeability with low coercive force, making it an excellent choice for transformers and other magnetic core applications.
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1J50 is a nickel-iron soft magnetic alloy containing approximately 50% nickel. Classified under ASTM F35, it delivers strong magnetic properties, including high initial permeability and low hysteresis loss. Its density is about 8.2 g/cm³, and it maintains stable performance up to 500°C. Unlike conventional silicon steels, 1J50 is optimized for precision components where magnetic stability and efficiency are critical.
Alloy Composition Table
Alloy Grades | C | S | P | Mn | Si | Ni | Cr | Co | Mo | Cu | Al | Nb | Fe | Other Elements |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1J06 | 0.04 | 0.015 | 0.015 | ≤0.10 | ≤0.15 | - | - | - | - | - | 5.5-6.5 | - | Rest | - |
1J12 | 0.03 | 0.015 | 0.015 | ≤0.10 | ≤0.15 | - | - | - | - | - | 11.6-12.4 | - | Rest | - |
1J17 | 0.03 | 0.02 | 0.02 | ≤0.60 | ≤0.20 | - | 15.5-16.5 | - | - | - | - | - | Rest | - |
1J18 | 0.03 | 0.02 | 0.02 | 0.3-0.7 | ≤0.15 | 0.5-0.7 | 17-18.5 | - | - | - | - | - | Rest | Ti: 0.3-0.7 |
1J22 | 0.04 | 0.02 | 0.02 | ≤0.3 | ≤0.3 | ≤0.5 | - | 49-51 | - | ≤0.2 | - | - | Rest | V: 0.8-1.8 |
1J30 | 0.04 | 0.02 | 0.02 | ≤0.40 | ≤0.30 | 29.5-30.5 | - | - | - | - | - | - | Rest | - |
0.03 | 0.02 | 0.02 | ≤0.60 | ≤0.20 | 35.0-37.0 | - | - | - | - | - | - | Rest | - | |
1J38 | 0.03 | 0.05 | 0.02 | 0.3-0.6 | 0.15-0.3 | 37.5-38.5 | 12.5-13.5 | - | - | - | - | - | Rest | - |
1J46 | 0.03 | 0.02 | 0.02 | 0.6-1.1 | 0.15-0.3 | 45.0-46.5 | - | - | - | ≤0.2 | - | - | Rest | - |
1J50 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | 0.15-0.3 | 49-50.5 | - | - | - | ≤0.2 | - | - | Rest | - |
1J51 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | 0.15-0.3 | 49-50.5 | - | - | - | ≤0.2 | - | - | Rest | - |
1J54 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | 1.1-1.4 | 49.5-51 | 3.8-4.2 | - | - | ≤0.2 | - | - | Rest | - |
1J76 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | 0.15-0.3 | 75.0-76.5 | 1.8-2.2 | - | - | 4.8-5.2 | - | - | Rest | - |
1J77 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | 0.15-0.3 | 75.5-78 | - | - | 3.9-4.5 | 4.8-6.0 | - | - | Rest | - |
0.03 | 0.02 | 0.02 | 0.6-1.10 | 0.3-0.5 | 78.5-80.0 | - | - | 3.8-4.1 | ≤0.2 | - | - | Rest | - | |
1J80 | 0.03 | 0.02 | 0.02 | 0.6-1.10 | 1.1-1.5 | 79.0-81.5 | 2.6-3.0 | - | - | ≤0.2 | - | - | Rest | - |
0.03 | 0.02 | 0.02 | 0.3-0.60 | 0.15-0.3 | 79.0-81.0 | - | - | 4.8-5.2 | ≤0.2 | - | - | Rest | - | |
1J87 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | ≤0.3 | 78.5-80.5 | - | - | 1.6-2.2 | - | - | 6.5-7.5 | Rest | - |
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The global market for soft magnetic alloys has been expanding alongside the growth of energy, electronics, and automotive industries.
Transformers: As the demand for efficient power distribution grows, precision alloys like 1J50 are essential in minimizing core losses.
Electronics: The miniaturization of components requires alloys with stable, predictable magnetic properties.
Aerospace: Navigation and communication systems rely on alloys that can handle variable magnetic conditions without loss of accuracy.
Automotive: With the rise of electric vehicles, alloys like 1J50 are increasingly used in sensors and precision electromagnetic devices.
Medical: Devices such as MRI systems and sensitive diagnostic tools use high-permeability alloys to reduce interference.
The trend toward renewable energy and smart grid systems further drives the need for alloys that balance efficiency with durability, placing 1J50 at the center of this shift.
Applications of 1J50 Alloy Strip
Transformers: Used in instrument and power transformers for efficiency and stability.
Magnetic Cores: Provides low loss and high accuracy for electromagnetic circuits.
Shielding: Protects sensitive equipment from electromagnetic interference (EMI).
Sensors: Supports precise measurement and detection applications.
Electromagnetic Devices: Employed in relays, coils, and inductors requiring reliable magnetic performance.
Company Comparison and DLX Advantage
Not every supplier delivers the same level of precision and reliability when it comes to 1J50 alloy strips. At DLX, we distinguish ourselves by combining advanced production capabilities with dedicated customer support.
Here’s why customers worldwide trust DLX:
Uncompromising Quality Control: Each batch of 1J50 alloy undergoes strict testing to meet or exceed ASTM F35 standards.
Tailored Specifications: DLX provides strips, coils, and sheets customized to exact client requirements.
Global Logistics Network: Reliable supply and timely delivery to international markets.
Technical Expertise: Our engineers collaborate directly with clients to optimize designs and performance.
Long-Term Reliability: DLX builds lasting partnerships by ensuring stable supply chains and consistent product performance.
With DLX, customers don’t just get materials—they gain confidence and long-term value.
Comparison Table
| Parameter | 1J50 Alloy (ASTM F35) | Electrical Steel (Si-Steel) |
|---|---|---|
| Composition | ~50% Ni, balance Fe | Fe with ~3% Si |
| Magnetic Permeability | High | Medium |
| Coercive Force | Low | Higher |
| Density | ~8.2 g/cm³ | ~7.6 g/cm³ |
| Saturation Induction | ~1.5 T | ~2.0 T |
| Corrosion Resistance | Good | Moderate |
| Max Operating Temp | ~500°C | ~350°C |
| Applications | Transformers, shielding, sensors, cores | Motors, transformers, generators |
Several global trends are shaping the future demand for alloys like 1J50:
Electrification of transport driving need for efficient transformer and sensor materials.
Growth of renewable energy systems requiring advanced magnetic materials.
Rising focus on miniaturization in electronics and medical equipment.
Stricter EMI shielding requirements across industries.
Advanced aerospace applications pushing the need for reliable high-permeability alloys.
At DLX, we are actively investing in technology and capacity to meet these demands. By staying aligned with industry innovation, we ensure our customers always have access to cutting-edge solutions.
Conclusion
1J50 alloy strip (ASTM F35) is one of the most dependable materials for transformers, sensors, and precision magnetic cores. With its unique balance of permeability, low coercivity, and operational stability, it serves as a cornerstone in modern electronics and energy systems. DLX enhances this material with precision manufacturing, customization, and unmatched customer service. For companies looking to secure not only premium alloy strips but also long-term reliability and expertise, DLX remains the supplier of choice.




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FAQs
What is the chemical composition of 1J50 alloy?
Approximately 50% nickel, balance iron.What standard does 1J50 alloy follow?
ASTM F35.What are the magnetic properties of 1J50?
High permeability, low coercivity, moderate saturation induction.What is the density of 1J50 alloy?
Around 8.2 g/cm³.What temperature range can 1J50 operate in?
Up to 500°C.What applications use 1J50 strips?
Transformers, magnetic cores, shielding, sensors.Which industries rely on 1J50 alloy?
Electronics, aerospace, automotive, energy, medical devices.Why choose DLX for 1J50 alloy strips?
Consistent quality, customization options, expert engineering support, reliable global delivery.