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  • EI Transformer Core Chinese Supplier Silicon Steel EI 96 Astm A401 CRGO Material Silicon Steel FeSi Black Sheet Laminations
  • EI Transformer Core Chinese Supplier Silicon Steel EI 96 Astm A401 CRGO Material Silicon Steel FeSi Black Sheet Laminations
  • EI Transformer Core Chinese Supplier Silicon Steel EI 96 Astm A401 CRGO Material Silicon Steel FeSi Black Sheet Laminations
  • EI Transformer Core Chinese Supplier Silicon Steel EI 96 Astm A401 CRGO Material Silicon Steel FeSi Black Sheet Laminations
  • EI Transformer Core Chinese Supplier Silicon Steel EI 96 Astm A401 CRGO Material Silicon Steel FeSi Black Sheet Laminations
  • EI Transformer Core Chinese Supplier Silicon Steel EI 96 Astm A401 CRGO Material Silicon Steel FeSi Black Sheet Laminations
EI Transformer Core Chinese Supplier Silicon Steel EI 96 Astm A401 CRGO Material Silicon Steel FeSi Black Sheet Laminations

EI Transformer Core Chinese Supplier Silicon Steel EI 96 Astm A401 CRGO Material Silicon Steel FeSi Black Sheet Laminations

  • 5 - 9 Kilograms
    $1.09
  • 10 - 19 Kilograms
    $1.07
  • >= 20 Kilograms
    $1.02

Customization:

Customized logo（Min.Order: 500 pieces）
Customized packaging（Min.Order: 500 pieces）
Graphic customization（Min.Order: 1000 pieces）
View product details

EI Transformer Core Chinese Supplier Silicon Steel EI 96 Astm A401 CRGO Material Silicon Steel FeSi Black Sheet Laminations

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Transformer Core Application: Designed for single-phase transformer cores, optimized for low core loss and high efficiency in electrical systems.
  • Material & Construction: Crafted from ASTM A401 CRGO (Cold-Rolled Grain-Oriented) silicon steel, featuring a black coated finish to enhance corrosion resistance and durability. The EI lamination pattern ensures precise magnetic flux alignment.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With CRGO (Cold-Rolled Grain-Oriented) silicon steel and a coated finish, ensure long-lasting durability in harsh industrial environments. The black sheet laminations resist rust and oxidation, outperforming uncoated alternatives by up to 30% in corrosion resistance*.

  • 2. Precision-Engineered Interactive Design

    • With a precise EI lamination pattern and ±1% tolerance, achieve seamless assembly and optimal magnetic performance in transformers. The symmetrical "E" shape ensures stable alignment, reducing energy loss by 15% compared to loosely toleranced designs*.

  • 3. Enhanced Magnetic Efficiency

    • Cold-rolled non-oriented silicon steel (FeSi) improves magnetic permeability, enabling transformers to deliver up to 20% higher power output than hot-rolled alternatives*. Ideal for single-phase systems requiring efficient energy transfer in residential or commercial settings.

  • 4. Versatile Scenario Solutions

    • Designed for single-phase transformer applications, these laminations adapt to both residential power distribution and industrial setups. Their stackable modular design allows scalable customization for varying transformer capacities.

  • 5. Global Certification Compliance

    • Certified to ASTM A401, EN, GB, and AISI standards, ensuring compliance with international safety and quality regulations. Trusted for use in critical electrical infrastructure worldwide.

Product details

EI Transformer Core Chinese Supplier Silicon Steel EI 96 Astm A401 CRGO Material Silicon Steel FeSi Black Sheet Laminations

The EI Transformer Core is a precision-engineered component designed for single-phase transformer applications. Crafted from ASTM A401 CRGO silicon steel (FeSi black sheet), it offers superior magnetic efficiency and corrosion resistance. Its symmetrical "E" shape, precision tolerances (±1%), and pre-drilled mounting holes ensure seamless integration into electrical assemblies. Compliant with global standards (EN, ASTM, GB, AISI), it balances durability and scalability for diverse industrial needs.

Technical specifications

FeatureSpecificationBenefit
MaterialCRGO silicon steel (FeSi black sheet)High magnetic permeability, low losses
FinishCoated (anti-corrosion)Extended lifespan in harsh environments
GradeASTM A401 CRGOEnhanced mechanical strength and stability
Tolerance±1%Precision fit for complex assemblies
Processing ServicesCutting, bending, punchingCustomizable to meet specific design needs
Standard ComplianceEN/ASTM/GB/AISIGlobal compatibility and quality assurance

Customization guide

Adjustable parameters include:

  • Hole positioning/diameter for tailored mounting requirements
  • Stacking configurations to optimize transformer core volume
  • Surface coating thickness for specialized corrosion resistance

Get inspired

With its modular "E" shape and stackable design, this core enables scalable transformer solutions. Ideal for applications like power supplies, inverters, or single-phase electrical systems where space efficiency and magnetic performance are critical.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material GradeCRGO (ASTM A401)CRNO (Premium grade)CRH (High-silicon)
Tolerance±1%±0.8% (+20% precision)±0.5% (+50% precision)
Processing OptionsStandard (cut/bend)Full suite (+punching)Custom tooling
Weight Capacity50kg80kg (+60%)120kg (+140%)

Supplier's note

  1. Three Breakthroughs:

    • CRGO Material: Triple-layer coating reduces eddy current losses by 25% vs. uncoated steel.
    • Precision Tolerance: ±0.5% in Pro Model ensures 30% tighter magnetic circuit alignment.
    • Multi-Standard Compliance: Single design meets EN/ASTM/GB, reducing certification costs by 40%.

  2. Version Selection Guide:

    • Base Model: Ideal for standard residential transformers (e.g., 500VA inverters) where cost-efficiency is prioritized.
    • Advanced Model: Suitable for industrial inverters requiring 20% higher power density (e.g., 2kVA systems).
    • Pro Model: Best for high-frequency applications (e.g., electric vehicle chargers) needing extreme thermal stability and precision.

With the Pro Model’s CRH material, you can achieve 15% lower core losses in high-temperature environments. Pair its ±0.5% tolerance with custom punching to streamline assembly in automated production lines.

Frequently asked questions

  • Which EI transformer core model suits single-phase electrical systems with high efficiency?

  • How does the ASTM A401 CRGO material improve transformer performance compared to standard silicon steel?

  • Can EI laminations be customized for non-standard transformer designs?

  • What certifications ensure the quality of your EI silicon steel laminations?

  • Why is the EI lamination pattern preferred for transformer cores?

  • Are pre-drilled mounting holes included in the EI 96 cores?

  • Does the coated finish protect against corrosion in industrial environments?

  • How does the 1% tolerance ensure reliable transformer performance?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHigh-efficiency transformersIndustry: 2.5-3.5% Si (ASTM A376) ▲ Base: 3.0% Si (CRNO) ▲ Advanced: 6.5% Si (CRNO+) (ASTM A376)Higher Si reduces core loss by 20%Advanced material increases cost by 30%
Coating TypeCorrosive environmentsIndustry: Oil-based (ASTM D3359) ▲ Base: Epoxy (ASTM D3359 >5N/cm) ▲ Advanced: Hybrid (IP67 corrosion resistance)Enhanced durability in harsh conditionsComplex application process
Lamination PrecisionPrecision power systemsIndustry: ±2% tolerance (ISO 278-2) ▲ Base: ±1% tolerance (ISO 278-2) ▲ Advanced: ±0.5% tolerance (ISO 278-2)Improved efficiency and reduced noiseCustom lamination requires longer lead time
Electrical ResistivityHigh-frequency applicationsIndustry: 100-150 µΩ·m (ASTM A376) ▲ Base: 120 µΩ·m (ASTM A376) ▲ Advanced: 180 µΩ·m (ASTM A376)Reduces eddy current losses by 25%Requires specialized material handling
Magnetic PermeabilityHigh-induction transformersIndustry: 10,000 G·cm³/Oe (ASTM A376) ▲ Base: 12,000 G·cm³/Oe ▲ Advanced: 15,000 G·cm³/Oe (ASTM A376)Higher inductance for compact designsLimited availability of high-permeability steel
Phase CompatibilityMulti-phase systemsIndustry: Single Phase (IEC 60076) ▲ Base: Single Phase (IEC 60076) ▲ Advanced: Dual-Phase (Custom IEC)Flexibility for mixed-phase installationsRequires advanced engineering for dual-phase

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