PURE IRON
Pure iron stands as the pioneering and widely adopted pure metal in the realm of soft magnetic materials. It denotes a type of low-carbon steel characterized by an iron purity exceeding 99.85%, with a carbon content capped at 0.04%. Beyond its exceptional purity and cleanliness, pure iron boasts an array of remarkable attributes, encompassing superior corrosion resistance, impressive hot and cold forming versatility, economical melting costs, and compatibility with a wide range of welding techniques. As an electromagnetic material, it exhibits high saturation magnetization (Bs) and peak permeability (μmax), coupled with low coercivity (Hc), consistent magnetic behavior, and excellent direct current (DC) soft magnetic properties. Consequently, pure iron finds primary applications in the fabrication of electromagnet cores and magnetic poles, the magnetic circuits of electric relays and speakers, various components for induction and electromagnetic measurement instruments, and as magnetic poles for directing magnetic flux in motors.
| Yield Streng | 200 N/mm2 |
| Tensile Strength | 320 N/mm2 |
| Elongation (L = 5d) | 40% |
| Density (at 20 °C) | 7.86 kg/dm3 |
| Elastic Modulus | 207 kN/mm2 |
| Melting Point | 1536 °C |
| Hardness | 90 HB Max |
| Linear Thermal Expansion Coefficient (0 °C – 100 °C) | 12 x 10-6 x °C-1 |
| Specific Resistance (at 20 °C) | 0.11 Ohm x mm2/m |
| Maximum Flux Density | 2.15 T |
| Maximum Permeability | 2000 – 20000 |
| Initial Permeability | 300 – 500 |
| Coercivity | 15 – 160 A/m |
Chemical Composition(1)
|
Chemical |
Fe |
C |
Si |
Mn |
S |
|
Spec (%) |
99.85Min. |
0.001Max. |
0.01Max. |
0.25Max. |
0.01Max. |
|
Chemical |
p |
Al |
Cu |
Ni |
Cr |
|
Spec (%) |
0.015Max. |
0.01Max. |
0.01Max. |
0.01Max. |
0.01Max |
Chemical composition(2):
|
Chemical |
Fe |
C |
Si |
Mn |
S |
p |
|
|
Spec (%) |
99.60Min. |
0.003Max. |
0.01Max. |
0.2Max. |
0.004Max. |
0.005Max. |
|
|
Chemical |
Al |
Cu |
Ni |
Cr |
Ti |
CFB(A/m) |
|
|
Spec (%) |
0.054Max. |
0.01Max. |
0.01Max. |
0.01Max. |
0.01Max |
20.2 |
29.2 |
Chemical composition(3):
|
Chemical |
Fe |
C |
Si |
Mn |
S |
p |
|
|
Spec (%) |
99.73Min. |
0.002Max. |
0.01Max. |
0.19Max. |
0.004Max. |
0.009Max. |
|
|
Chemical |
Al |
Cu |
Ni |
Cr |
Ti |
CFB(A/m) |
|
|
Spec (%) |
0.051Max. |
0.01Max. |
0.01Max. |
0.01Max. |
0.01Max |
8.2 |
8.5 |
Chemical composition(4):
|
Chemical |
Fe |
C |
Si |
Mn |
S |
p |
|
Spec (%) |
99.60Min. |
0.004Max. |
0.01Max. |
0.14Max. |
0.005Max. |
0.011Max. |
|
Chemical |
Al |
Cu |
Ni |
Cr |
Ti |
|
|
Spec (%) |
0.26Max. |
0.02Max. |
0.01Max. |
0.02Max. |
0.01Max |
Application
High-Efficiency Transformers:
Pure iron's low loss characteristics and high permeability make it ideal for use in transformers, particularly those requiring high efficiency and minimal energy loss. Its ability to withstand high temperatures and maintain stable magnetic properties contributes to the reliability and durability of transformers in demanding applications.
Magnetic Shielding Materials:
Due to its high magnetic permeability, pure iron can be used to create effective magnetic shielding materials. These shields can protect sensitive electronic equipment from external magnetic fields, ensuring accurate and uninterrupted operation in environments with high magnetic interference.
Energy Storage Devices:
Researchers are exploring the use of pure iron in advanced energy storage systems, such as supercapacitors and battery electrodes. Its unique magnetic properties and high electrical conductivity could enhance the performance of these devices, enabling faster charging times, higher energy densities, and longer life cycles.
Sensor Components:
Pure iron's responsiveness to magnetic fields makes it a suitable material for use in sensors. These sensors can detect changes in magnetic fields, which can be translated into various measurements such as position, speed, and acceleration. Applications range from automotive systems to industrial automation and robotics.
Advantages and Characteristics
FAQ
What is the significance of high permeability in pure iron?
Answer: High permeability in pure iron is crucial as it indicates the material's ability to support strong magnetic fields with minimal resistance. This makes pure iron ideal for applications where efficient magnetic flux conduction is required, such as in transformers, inductors, and electromagnetic devices. The higher the permeability, the more effectively the material can channel and concentrate magnetic lines of force.
How does the purity of iron affect its magnetic properties?
Answer: The purity of iron plays a significant role in determining its magnetic properties. High-purity iron, such as pure iron with over 99.85% purity, exhibits superior magnetic characteristics, including higher saturation magnetization and permeability. Impurities, especially carbon, can negatively impact these properties by introducing magnetic anisotropies and increasing coercivity, thereby reducing the overall effectiveness of the material in magnetic applications.
What is the impact of annealing on the permeability of pure iron?
Answer: Annealing pure iron can have a beneficial impact on its permeability. Annealing involves heating the material to a critical temperature and then cooling it slowly to relieve internal stresses and improve crystalline structure. This process can enhance the permeability of pure iron by promoting a more uniform and ordered arrangement of magnetic domains, thereby facilitating smoother and more efficient magnetic flux conduction.
How does temperature affect the magnetic properties of pure iron?
Answer: The magnetic properties of pure iron are sensitive to temperature. As temperature increases, the permeability of pure iron tends to decrease due to thermal fluctuations that disrupt the orderly arrangement of magnetic domains. This can lead to a reduction in saturation magnetization and an increase in coercivity, making the material less effective in high-temperature magnetic applications. However, pure iron retains its soft magnetic properties within a certain temperature range, making it suitable for a variety of operating conditions.
One-stop Pure Iron Factory in China
Send your inquiry about Pure Iron to us and experience the transformative power it can have on your business or brand. With our premium packaging solutions, you can elevate your products, captivate your customers, and unlock new opportunities for growth and success in the beauty indsty.
Package
Pure iron is typically packaged with rust-preventive oil, wrapped in plastic film, and secured with plastic or metal straps. It is then placed on wooden pallets or in wooden crates, sometimes using moisture-proof paper or vacuum packaging for extra protection during transportation and storage.
Transportation
At Taiyuan Xinye Taiming Manufacturing and Processing Co., Ltd., we efficiently deliver products worldwide, handle shipping and customs clearance, and ensure fast, safe, and hassle-free transportation to all parts of the world.
Partner
We are proud to have established strong, trusted partnerships with leading steel companies. These alliances have enabled us to enhance our operations, ensure the delivery of top-quality products, and maintain our industry leadership, driving excellence and innovation.
