Electrical Steel Sheets
Electrical Steel Sheets
Call 0121 544 5808 Today
Bespoke Manufacturing
Instant Quote Service
Worldwide Delivery
Various Gauges/Thicknesses
Bespoke Manufacturing
Instant Quote Service
Worldwide Delivery
Various Gauges/Thicknesses
Stephens Gaskets is a leading UK manufacturer of electrical steel sheets, supplying grain-oriented (GO) and non-grain-oriented (NGO) silicon steels for motors, transformers, generators, and renewable systems.
Our precision-engineered sheets are designed to reduce energy losses, improve magnetic performance, and extend equipment lifespan across industrial and power applications.
What Is an Electrical Steel Sheet?
An Electrical Steel Sheet (also known as silicon steel, lamination steel, or transformer steel) is a specially engineered alloy designed to offer high magnetic permeability and low energy loss when exposed to alternating magnetic fields.
Composition & Structure
- Iron with 2-6% silicon to increase resistivity and lower eddy current losses.
- Grain-oriented (GO) steels: aligned crystal structure for minimal core loss – ideal for transformers.
- Non-grain-oriented (NGO) steels: random grain orientation – ideal for motors and generators.
Electrical steel sheets are the core material behind efficient energy conversion in power systems and modern electrified technology.
Benefits of Electrical Steel Sheets
| Benefit | Description |
|---|---|
| High Energy Efficiency | Low hysteresis and eddy current losses reduce wasted energy. |
| Improved Magnetic Performance | High magnetic permeability allows smooth magnetic flux transfer. |
| Sustainability | Increases energy efficiency, lowers emissions, and supports net-zero goals. |
| Compact, Lightweight Designs | Enables smaller, more efficient machines – critical for EVs and aerospace. |
| Extended Equipment Lifespan | Reduced heat generation lowers stress and maintenance needs. |
| Economic Advantage | Lower operational costs and faster ROI through energy savings. |
Applications of Electrical Steel Sheets
Electrical steel sheets are critical anywhere electricity and magnetism interact:
1. Power & Energy
Transformers, inductors, reactors, grid systems.
2. Motors & Generators
Industrial drives, compressors, turbines, and household appliances.
3. Automotive
Electric and hybrid vehicle motors, alternators, traction systems.
4. Appliances
Refrigerators, washing machines, air conditioners, fans, and vacuum motors.
5. Renewable Energy
Wind turbines, solar inverters, and high-efficiency generators.
Materials & Manufacturing
Stephens Gaskets produces electrical steel sheets using low-carbon iron alloys with carefully controlled additions for magnetic performance:
| Material Element | Purpose |
|---|---|
| Silicon (2-6.5%) | Increases resistivity, reducing eddy current losses |
| Aluminium (Al) | Refines magnetic domains and improves stability |
| Manganese (Mn) | Boosts strength and deoxidizes steel |
| Phosphorus (P) | Improves resistivity but used in trace amounts to avoid brittleness. |
Each sheet is coated with phosphate, silicate, or organic coatings to improve insulation, corrosion resistance, and punchability.
Industry Pain Points (and How We Solve Them)
| Industry Challenge | Stephens Gaskets Solution |
|---|---|
| High energy losses | Silicon-alloyed steel reduces hysteresis and eddy currents |
| Overheating & noise | Precision rolling and coating improve magnetic smoothness. |
| Heavy or bulky equipment | Efficient flux conduction allows compact, lightweight designs. |
| Short component lifespan | Lower core losses reduce thermal stress and improve reliability. |
| Sustainability & compliance | Materials meet EU EcoDesign and global energy standards. |
FAQs – Electrical Steel Sheets
What are electrical steel sheets used for?
They’re used in transformers, motors, generators, and EVs to improve magnetic efficiency and reduce energy loss.
What's the difference between grain-oriented and non-grain-oriented electrical steel?
GO steel has aligned grains for transformer efficiency; NGO steel has random grains for motors and rotating machinery.
Can Stephens Gaskets supply coated electrical steel?
Yes, we offer phosphate, silicate, and organic coatings for insulation and corrosion resistance.
Do you provide small-batch or prototype quantities?
Absolutely – we supply from prototypes to high-volume production runs.
What thicknesses are available?
Typically between 0.2 mm and 0.65 mm, depending on grade and application.
Stephens Gaskets is the UK’s trusted Electrical Steel sSheet manufacturer.
We deliver precision-cut GO and NGO steels engineered for efficiency, sustainability, and performance.
Call: 0121 544 5808 | Email: sales@stephensgaskets.co.uk
Request your Electrical Steel Sheet today.