Precision Parameters & Key Selling Points
DT4 rods are manufactured under strict quality protocols to ensure consistent, superior performance essential for sensitive electromagnetic devices. Below are the core specifications defining our product:
Key Product Parameters
| Parameter | Specification | Importance |
|---|---|---|
| Material Grade | DT4 (GB/T 6983 Equivalent) | Internationally recognized standard for high-purity electrical iron. |
| Carbon Content | ≤ 0.004% | Ultra-low carbon minimizes magnetic aging & hysteresis losses. |
| Purity (Fe) | ≥ 99.8% | High purity ensures exceptional magnetic permeability and softness. |
| Processing | Hot Rolled | Provides excellent structural uniformity and cost-effectiveness. |
| Form | Round Rod (Custom Diameters Available) | Versatile for machining cores, laminations, pole pieces, shielding. |
| Relative Permeability (Initial) | ≥ 500 µ (Annealed) | Enables strong magnetic flux with minimal magnetizing force. |
| Coercive Force (Hc) | ≤ 80 A/m (Annealed) | Low coercivity ensures easy magnetization/demagnetization, reducing energy loss. |
| Core Loss | Exceptionally Low | Minimizes heat generation & energy waste in AC applications. |
| Surface | Clean, scale-free (Post-Pickling) | Ready for precision machining or further processing. |
Core Selling Points
Unmatched Magnetic Softness: Exceptionally low coercive force (Hc) guarantees easy magnetization and demagnetization, crucial for efficient energy conversion and rapid response in dynamic fields.
Minimized Energy Loss: Ultra-low carbon content combined with high purity drastically reduces hysteresis and eddy current losses, translating to cooler operation and higher efficiency for motors, transformers, and actuators.
Superior Permeability: Achieves high magnetic flux density (B) with minimal magnetizing force (H), maximizing sensitivity and output in sensors, relays, and magnetic circuits.
Structural Integrity: Hot rolling delivers a dense, uniform microstructure with excellent mechanical properties, ensuring dimensional stability during machining and operation.
Tailored Solutions: Available in custom diameters and lengths, precisely meeting your component design requirements, minimizing waste and secondary processing.
Engineered Functionality: Solving Core Electromagnetic Challenges
DT4 Pure Iron Rods aren't just raw material; they are precision components enabling superior electromagnetic performance.
How It's Used
DT4 rods serve as the essential magnetic core material. They are typically precision machined (turned, milled, ground) or stamped (from rolled sheets derived from rods) into specific shapes like laminations, cores, pole pieces, armatures, or shielding components. Optimal magnetic properties are fully realized after a final annealing process following machining.
Problems It Solves
Excessive Core Loss & Heating: Replaces inferior grades, drastically reducing wasted energy as heat in AC devices.
Low Sensitivity/Output: Its high permeability ensures maximum flux transfer and signal strength in sensors and instruments.
Poor Dynamic Response: Low coercivity allows for rapid cycling in solenoids, relays, and switching applications.
Magnetic Aging Instability: Ultra-low carbon content prevents gradual degradation of magnetic properties over time.
Performance Inconsistency: Rigorous manufacturing ensures batch-to-batch reliability critical for production.
Tangible Results
Measurably Higher Efficiency: Reduce energy consumption in motors and transformers.
Enhanced Device Sensitivity & Precision: Achieve finer control and stronger signals in measurement and control systems.
Cooler Operating Temperatures: Extend component lifespan and improve system reliability.
Consistent, Predictable Performance: Ensure quality and reliability in high-volume manufacturing.
Where DT4 Pure Iron Rods Power Precision
The exceptional properties of DT4 rods make them indispensable across industries where precise magnetism is paramount:
Electromechanical Components
The core material of choice for high-performance:
Relays & Contactors: Ensuring swift, reliable switching with minimal power loss.
Solenoids & Actuators: Delivering strong, responsive force with high efficiency.
DC Motors & Generators: Used in pole pieces, armatures, and frames for optimal flux conduction and low loss (especially in specialized or high-efficiency designs).
Voice Coils (Loudspeakers): Critical for linear motors requiring precise magnetic fields.
Sensors & Measurement
Magnetic Sensors (Fluxgate, Hall Effect): Core material for high sensitivity and accuracy.
Instrument Transformers (CTs, VTs): Essential for accurate current/voltage measurement with minimal phase error.
Precision Weighing Systems (Force Compensation): Used in magnetic circuits requiring extreme stability.
Specialized Applications
Magnetic Shielding: Effective for sensitive equipment protection (custom shapes often machined from rod stock).
Electromagnets (Research, Industrial Lifting): Providing strong, controllable fields.
Microwave Tubes (Magnetron/Yig): Precision pole pieces.
Magnetic Bearings & Couplings: Requiring stable, low-loss magnetic fields.
Customization: Your Specifications, Our Expertise
We understand that off-the-shelf isn't always optimal. Our hot-rolled DT4 rods are available in a wide range of custom diameters and cut lengths. Tell us your exact requirements, and we'll deliver the precise grade and dimensions you need for efficient manufacturing and peak component performance.
Invest in Magnetic Excellence
DT4 High Purity Hot Rolled Ultra-Low Carbon Iron Rods are the material foundation for electromagnetic devices that demand efficiency, precision, and reliability. By choosing DT4, you're not just selecting iron; you're investing in superior magnetic performance, reduced operational costs, and components built to meet the most stringent requirements.
Ready to specify the core of your next breakthrough? Contact us today to discuss your DT4 requirements and request a quote.
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.











