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ASTM A683/A683M Cold Rolled Non-Oriented Electrical Silicon Steel Coil – High Efficiency Transformer Steel
| Item | Description |
| Product Name | ASTM A683 Silicon Steel Coil |
| Steel Type | Non-Oriented Electrical Steel (NOES) |
| Manufacturing Process | Cold-Rolled |
| Standard | ASTM A683 / A683M |
| Application Frequency | 50 / 60 Hz |
| Typical Applications | Motors, Generators, EV Drive Motors, Appliances |
| Element | Typical Range (%) | Notes |
| Carbon (C) | 0.005 – 0.10 | Lower for non-oriented grades; lower C improves magnetic properties. |
| Manganese (Mn) | 0.10 – 0.50 | Improves strength and hardenability. |
| Silicon (Si) | 1.0 – 3.5 | Core element for electrical steel; higher Si improves resistivity and reduces core loss. |
| Sulfur (S) | ≤ 0.03 | Kept low to reduce brittleness and surface defects. |
| Phosphorus (P) | ≤ 0.03 | Helps with corrosion resistance but limited to avoid brittleness. |
| Aluminum (Al) | 0.01 – 0.05 | Often present to aid deoxidation. |
| Nitrogen (N) | ≤ 0.005 | Low N is preferred for grain-oriented steel to improve magnetic properties. |
| Iron (Fe) | Balance | The rest of the material is mostly iron. |
| Property | Description |
| Grain Orientation | Non-oriented (Uniform magnetic properties in all directions) |
| Core Loss | Low to ultra-low (grade dependent) |
| Magnetic Permeability | High |
| Magnetic Induction | High (Typical B50 / B25 values per grade) |
| Coating Type | C5 / Insulated coating available |
| Performance Stability | Excellent under rotating magnetic field conditions |
| Thickness (mm) | Typical Application |
| 0.35 | High-efficiency industrial motors |
| 0.5 | General industrial motors |
| 0.65 | Standard motors & generators |
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1. Electric Motors: For AC, DC, and servo motors, smooth rotation and low energy consumption are achieved by controlling the uniformity of magnetic properties.
2. Alternating Current Generators: NOG silicate steel coils using a secret lamination process exhibit stable performance in rotating magnetic fields, making them suitable for power generation.
3. Industrial Transformers and Reactors: Small and medium power industrial transformers and reactors require isotropic magnetic properties.
4. Electric Vehicle Drive Motors: High-performance electric vehicle and hybrid vehicle motors require low iron losses and uniform magnetic flux density.
5. Green Energy Generators: Wind turbines, hydroelectric generators, and other green energy generators that require highly uniform magnetic properties.
1) Branch Office - Spanish-speaking support, customs clearance assistance, etc.
2) Over 5,000 tons of stock in stock, with a wide variety of sizes
3) Inspected by authoritative organizations such as CCIC, SGS, BV, and TUV, with standard seaworthy packaging
Packaging Characteristics
Roll Protection: The inner core of the roll material is made of steel or paper tubing, with corner guards or angle irons added to the edges; the surface is covered with moisture-proof paper or PE film, and rust-preventive oil can be applied as needed.
Securation Method: High-strength steel strapping is used for binding; wooden pallets or trays can be used if necessary.
Bundling (Optional): Thin rolls can be bundled into multiple rolls, separated by separator paper to prevent scratches, and covered with a plastic film for protection.
Transportation Methods
Sea Freight: Use 20-foot/40-foot containers, securely secured with wooden wedges.
Rail Transport: Flatbed truck or rail transport, secured with chains or brackets.
Handling and Storage
Use coil hooks, lifting devices, or C-frames to prevent dragging.
Roll materials should be stored upright to prevent deformation and rust.
Store in a dry, well-ventilated place, and do not place them too high.
Stable cooperation with shipping companies such as MSK, MSC, COSCO efficiently logistics service chain, logistics service chain are we to your satisfaction.
We follow the standards of quality management system ISO9001 in all procedure, and have strict control from packaging material purchase to transport vehicle scheduling.
1. What is a non-oriented electrical steel coil?
Non-oriented electrical steel coil: Non-oriented electrical steel is a type of silicon steel sheet with high magnetic permeability and low iron loss. It has uniform conductivity in all directions and is commonly used in electrical equipment such as transformers, motors, and generators.
2. What are the standard thickness and width?
Thickness: Typically 0.27mm, 0.30mm, 0.35mm, etc. (custom sizes available upon request)
Width: 600mm～1250mm (custom sizes available upon request)
3. What are the surface treatment options?
Insulating varnish treatment (surface coating): Used to reduce eddy current losses.
Rust-preventive oil coating: The surface is coated with rust-preventive oil to prevent rusting during transportation and storage.
VCI rust-preventive paper or PE film packaging: Waterproof and corrosion-resistant.
4. How is it packaged?
The inner core of each roll is made of steel tubing or paper tubing.
Uneven edges are wrapped with corner protectors and steel strapping. The outer layer is wrapped with moisture-proof paper or plastic film. Small rolls can be bundled together.
5. Can it be customized? How to customize?
Yes, the thickness, width, weight, surface treatment, and packaging method of the rolls can all be customized according to customer requirements.
Contact Details
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
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