B23R095 0.23mm Oriented Silicon Steel Coil with 0.95W/kg Core Loss

 

B23R095 is a high-efficiency fully processed grain-oriented electrical steel (GOES) coil manufactured by Baosteel, with a nominal thickness of 0.23mm and a guaranteed maximum core loss of 0.95W/kg at 1.7T / 50Hz. It is widely used for low-loss power transformer and reactor core fabrication.

• Nominal thickness: 0.23mm, theoretical density: 7.65 kg/dm³
• Magnetic performance: P₁.₇/₅₀ ≤ 0.95 W/kg, B800 ≥ 1.87T
• Surface: C-5 type insulating coating, compatible with stress relief annealing
• Compliance: B23R095 is Baosteel's commercial designation corresponding to GB/T 2521.2 grade 23Q095.
• Application: 50Hz/60Hz high-efficiency distribution & instrument transformers

 

GNEE Electric is a dedicated supply chain partner focused exclusively on transformer‑grade grain‑oriented silicon steel. Through full‑width online core‑loss monitoring, complete dimensional traceability, and batch‑insured supply, we help you eliminate the risks of core‑loss deviation and unexpected scrap.

 

Typical mean core loss 0.92 W/kg, guaranteed max 0.95 W/kg.

Most coils that claim 0.95 W/kg only hit that number on the certificate – not across the entire length. With GNEE, every meter of B23R095 is backed by full‑width online monitoring: typical mean core loss sits at 0.92 W/kg, and the 0.95 W/kg ceiling is a hard guarantee, not a hope. Stop downgrading batches; start building transformers that deliver the efficiency you actually designed for.

 

Get Your Free Sample with Full Coil Test Data

 

 

Category	Specification
Grade	B23R095
Type	Grain-Oriented Electrical Steel
Frequency	50Hz / 60Hz
Nominal Thickness	0.23 mm
Max Core Loss	≤ 0.95 W/kg
Min Magnetic Induction	≥ 1.87 T
Lamination Factor	≥ 95 %
Coating Type	Inorganic insulating coating (C-5)
Available Width	30mm – 1250mm (custom slitting)
Standard Coil Weight	2 – 6 MT
Test Standard	GB/T 2521.2, IEC 60404-8-4

 

 

Ultra-Low No-Load Loss for Energy Compliance: With iron loss of 0.95 W/kg-approximately 13.6% lower than that of the conventional 23Q110 grade-it directly reduces transformer no-load losses and meets overseas market access requirements such as the EU ERP Tier 2 and Southeast Asian energy efficiency certifications;

 

High Flux Density for Compact Design: With a high magnetic flux density of B800 ≥ 1.87T, the core volume can be reduced for the same capacity, thereby decreasing silicon steel consumption and the overall manufacturing cost of the transformer;

 

Batch Consistency & Processability: A fully automated continuous production line ensures performance deviation within the same batch is ≤3%. The coating is uniform with strong adhesion, resulting in a low scrap rate during stamping and making it suitable for mass production on high-speed stamping presses;

 

Wide Frequency Adaptability: Stable performance under 50 Hz and 60 Hz operating conditions, suitable for markets with different grid frequencies worldwide.

 

 

B23R095 0.23mm Oriented Silicon Steel Coil with 0.95W/kg Core Loss is widely used in:

• Power transformers
• Distribution transformers
• Reactor cores
• CT/PT
• Instrument Transformer

Transformer manufacturers particularly favor this grade for energy-efficient distribution transformers that must comply with increasingly stringent efficiency standards.

 

Magnetic Property	Typical Value	Test Condition
Core Loss (P1.7/50)	≤ 0.95 W/kg	1.7T, 50Hz
Magnetic Induction (B800)	≥ 1.88 T	800 A/m
Specific Resistance	45–48 μΩ·cm	Typical
Stacking Factor	≥ 96.0%	Typical
Lamination Factor	≥ 96.0%	Typical
Curie Temperature	Approx. 740°C	Typical
Eddy Current Loss	Extremely Low	Due to 0.23 mm Thickness
Insulation Coating Resistance	Excellent	Standard Coating

 

 Why These Magnetic Properties Matter

• Low Core Loss (≤0.95 W/kg) reduces transformer no-load losses and improves energy efficiency.
• High Magnetic Induction (≥1.88 T) allows designers to achieve smaller and lighter transformer cores.
• High Permeability minimizes magnetizing current requirements.
• Thin 0.23 mm Gauge significantly reduces eddy current losses compared with thicker electrical steel grades.
• Excellent Stacking Factor helps maximize magnetic flux utilization within transformer core assemblies.

 

 

Element	Typical Content (%)
Silicon (Si)	3.0-3.4
Carbon (C)	≤ 0.005
Manganese (Mn)	≤ 0.10
Phosphorus (P)	≤ 0.025
Sulfur (S)	≤ 0.005
Iron (Fe)	Balance

The silicon content is particularly important because it significantly improves electrical resistivity and reduces hysteresis loss, making the material ideal for high-efficiency transformer cores.

 

 

Property	Typical Value
Tensile Strength	320–450 MPa
Yield Strength	≥ 280 MPa
Elongation	≥ 5%
Hardness	Moderate, suitable for punching

 

 

Country / Producer	Grade Designation	Typical Thickness	Core Loss Reference
China (Baosteel)	B23R095	0.23 mm	≤0.95 W/kg
China (GB/T 2521.2)	23Q095	0.23 mm	≤0.95 W/kg
Japan (Nippon Steel)	23Z095	0.23 mm	Similar Class
Japan (JFE Steel)	23JG095	0.23 mm	Similar Class
Germany (thyssenkrupp Steel)	C095-23	0.23 mm	Similar Class
South Korea (POSCO)	23PN095	0.23 mm	Similar Class

For reference only. Exact magnetic properties may vary by producer.

 

 

Grade	Thickness	Core Loss (W/kg)	Magnetic Induction (B800)	Typical Application
B23R090	0.23 mm	≤0.90	≥1.90 T	Premium Energy-Efficient Transformers
B23R095	0.23 mm	≤0.95	≥1.88 T	Distribution & Power Transformers
B27R095	0.27 mm	≤0.95	≥1.87 T	Cost-Sensitive Transformer Projects

 

In general, thinner silicon steel laminations help reduce eddy current losses, which contributes to higher transformer efficiency. Likewise, lower core loss values result in lower no-load losses and reduced energy consumption throughout the transformer's service life.

 

 

GNEE Electric offers in-house customized processing for B23R095 grain-oriented silicon steel to fit your core manufacturing requirements:

 

• Precision Slitting Service: Available in custom widths from 30 mm to 1250 mm. Width tolerance can typically be controlled within ±0.05–0.10 mm, with low burr height and minimal coating damage, making the material suitable for high-speed automatic core manufacturing lines.
• Cut-to-length shearing: Dimension-specific cutting per drawings with ±0.5mm length accuracy and ≤0.03mm edge burr
• Coating protection & deburring: Post-processing edge treatment to avoid insulating coating damage and ensure stress relief annealing stability
• Trial lamination service: Pre-cut core laminations for sample testing and small-batch trial production

How Is B23R095 Tested Before Shipment?

 

Before shipment, B23R095 0.23mm Oriented Silicon Steel Coil with 0.95W/kg Core Loss undergoes strict quality inspections to ensure consistent performance and reliability.

 

Key tests include:

• Core Loss Testing (P1.7/50)
• Magnetic Induction Testing (B800)
• Thickness Measurement
• Insulation Coating Inspection
• Surface Quality Inspection
• Coil Dimension Verification

A Mill Test Certificate (MTC) can be provided with each shipment to verify magnetic properties, dimensions, and product traceability.

 

Get a Custom Quotation for B23R095 Silicon Steel

Send us your required width, quantity and application details. We will reply with a detailed price list and technical solution within 12 working hours. Free sample available for quality testing.

 

Request A Quote

FAQ

 

Is B23R095 equivalent to 23Q095 grain-oriented electrical steel?

B23R095 and 23Q095 are generally considered comparable grades with similar thickness and core loss requirements. However, exact magnetic properties and coating specifications may vary by manufacturer.

 

Can B23R095 be used for 60Hz power systems?

Yes. B23R095 is widely used in both 50Hz and 60Hz transformers, although magnetic performance values may vary slightly depending on the operating frequency.

 

Does the coating support stress relief annealing?

Yes. Depending on the coating type, B23R095 can be supplied with coatings suitable for stress relief annealing (SRA) during transformer core manufacturing.

 

Can B23R095 be supplied in slit coils or cut laminations?

Yes. Depending on project requirements, B23R095 can be supplied as full coils, slit coils, or cut-to-length laminations for transformer core production.

 

How should B23R095 silicon steel be stored?

B23R095 should be stored in a dry indoor environment to prevent moisture exposure and maintain coating performance during storage and processing.

 

How does B23R095 compare with B23R090?

B23R090 offers lower core loss and slightly higher efficiency, while B23R095 provides a more cost-effective balance between performance and price for most transformer applications.

 

Can B23R095 Be Supplied As Prime Or Non-Prime Coil?

B23R095 can be supplied in both prime and non-prime grades depending on project requirements and budget considerations.

 

Specification of CRGO silicon steel products

Raw Material: Our products are meticulously crafted from the highest quality CRGO silicon steel, exclusively sourced from Bao-steel and Wu-steel.

Type	Grade	Width	Max Core Loss@P1.7T/50Hz	Lamination Factor(%)	Min Induction@B800
Common Type	23Q110	35-1200mm	1.10w/kg	97.2	1.82T
	23Q120		1.20w/kg	97.2	1.82T
	27Q120		1.20w/kg	97.5	1.82T
	30G120		1.20w/kg	98	1.82T
High Induction Type	B20P085	35-1200mm	0.85w/kg	97	1.86T
	B23P085		0.85w/kg	97.2	1.88T
	B23P090		0.90w/kg	97.2	1.88T
	B23P095		0.95w/kg	97.2	1.88T
	B23P100		1.00w/kg	97.2	1.88T
	B27P095		0.95w/kg	97.5	1.89T
	B27P100		1.00w/kg	97.5	1.89T
	B30P120		1.20w/kg	98	1.89T
Domain Refined High Induction Type(Laser)	B20R070	35-1200mm	0.70w/kg	97	1.86T
	B23R095		0.95w/kg	97.2	1.88T
	B27RK085		0.85w/kg	97.5	1.89T