23QG100 0.23mm 1.0W/kg Core Loss Oriented Silicon Steel Coil
Jun 24, 2026
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What is 23QG100 grain-oriented silicon steel coil?
23QG100 is a cold-rolled grain-oriented electrical steel (CRGO) grade with a nominal thickness of 0.23 mm and a guaranteed maximum specific total loss of 1.00 W/kg at 1.7 T and 50 Hz according to GB/T 2521 and manufacturer specifications.
It is specially designed for high-efficiency power and distribution transformers, effectively reducing no-load energy consumption and helping transformer manufacturers meet increasingly stringent no-load loss requirements specified by IEC 60076, DOE, EcoDesign, and local energy-efficiency regulations.


As a professional CRGO steel manufacturer and exporter, GNEE Electric supply full-spec 23QG100 coils with custom processing and global shipping support.
[Check Your Savings] – Want to know how much 23QG100 can cut your energy costs?
Request a free energy‑loss estimate
Grade Naming & Product Definition
- 23: Nominal thickness of 0.23mm
- QG: High magnetic induction grain-oriented electrical steel
- 100: Maximum core loss of 1.0 W/kg under 1.7T, 50Hz test conditions
- Positioning: Mid-to-high grade energy-saving CRGO steel for medium and small capacity transformers


GNEE Industry Insight
0.23mm grain-oriented silicon steel delivers the best cost performance under 50/60Hz power frequency. If your operating frequency exceeds 400Hz, we recommend opting for thinner grades such as 0.20mm. You may send us your designed operating frequency for loss simulation prior to material selection.
CRGO Cold Rolled Grain Oriented Silicon Electrical Steel 23QG100
| Categories | Grain Oriented Electrical Steel |
|---|---|
| Model Number: | 23QG100 |
| Thickness: | 0.23 Mm |
| Core loss (P₁.₇/₅₀): | ≤1.0 W/kg |
| Typical magnetic polarization at 800 A/m | 1.88–1.92 T |
| Insulating coating: | T4 (C5 optional) |
| Certification: | ISO SGS |
| Place Of Origin: | China |
| MOQ: | 20MT |
| Price: | 300-1000USD/MT |
| Supply Ability: | 100000MT/Month |
| Delivery Time: | By Negotiaton |
| Standard: | AISI, ASTM, BS, DIN, GB |
| Technique: | Cold Rolled |
| Dimensions: | Width 800-1200mm |
| Surface Treatment: | Coated |
| Shape: | Steel Coil |
Magnetic Properties & Processing Characteristics (per GB/T 2521-2008)
| Grade | Nominal Thickness (mm) | Max. Specific Total Loss (W/kg) | Min. Magnetic Polarization (T) | Min. Lamination Factor |
|---|---|---|---|---|
| 23QG100 | 0.23 | P1.7/50: 1.00 P1.7/60: 1.32 |
H=800 A/m: 1.85 | 0.95 |
Note: P1.5 and P1.7/60 values are for reference only and are not used as delivery acceptance criteria.
Typical Values vs. Guaranteed Values
There may be slight differences between typical values provided by suppliers and factory-guaranteed values. Common reference data are as follows:
| Parameter | Typical Value | Guaranteed Value (as-shipped) |
|---|---|---|
| Core Loss P1.7/50 (W/kg) | 0.95 | 1.00 / 0.96 max |
| Magnetic Induction B8 (T) | 1.90 | 1.89 min |
| Min. Lamination Factor | – | ≥ 95% |
| Theoretical Density (kg/dm³) | 7.65 | – |
Dimensional & Geometric Tolerances
| Parameter | Specification / Tolerance |
|---|---|
| Nominal Thickness | 0.23 mm |
| Thickness Tolerance | +0.010 / –0.020 mm |
| Longitudinal Thickness Deviation | ≤ 0.012 mm |
| Transverse Thickness Deviation | ≤ 0.010 mm |
| Width Tolerance (sheared edge) | 0 ~ +0.5 mm |
| Burr Height | ≤ 0.025 mm |
| Coil Inner Diameter | 508 mm ± 10 mm |
Tip: When burrs exceed 0.03 mm, the lamination factor will drop below 93%, and the insulating coating is prone to being punctured. Our longitudinal slitting lines can consistently control burrs within ≤0.02 mm. Deburred edges are recommended for high-frequency stamping applications, which can extend die service life by 30%.
Typical Mechanical Properties
| Parameter | Typical Value |
|---|---|
| Tensile Strength (longitudinal) | 347 MPa |
| Elongation (longitudinal) | 6% |
| Vickers Hardness HV1 | 177 |
Insulation Coating Characteristics (e.g., Baosteel data)
| Parameter | Specification |
|---|---|
| Coating Thickness | 4–6 μm / side |
| Surface Insulation Resistivity | ≥ 30 Ω·cm² / sheet (typical 80 Ω·cm² / sheet) |
Approximate International Equivalent Grades
|
BaoSteel |
WISCO |
NSC |
JFE |
Congent |
TKS |
POSCO |
NI&SCo |
AK |
|
B23P100 |
23QG100 |
23ZH100 |
23JGH100 |
M100-23P5 |
H100-23 |
23PH100 |
- |
H-0 |
Equivalent grades are provided for reference only. Actual magnetic properties, coating systems, and manufacturing tolerances may vary by producer and should be verified before substitution.
Key Performance Advantages of 0.23mm 1.0W/kg Core Loss Silicon Electrical Steel
1.0W/kg Ultra-Low Core Loss for Long-Term Energy Saving
Approximately 15-17% lower core loss compared with conventional 23Q120 grades, significantly reducing end-user electricity expenses and shortening investment payback period
0.23mm Thin Gauge for Reduced Eddy Current Loss
0.23mm thickness effectively suppresses eddy current loss under medium-high frequency conditions, improving overall efficiency of PV/wind grid-tied transformers
High Magnetic Induction for Compact Core Design
High value allows smaller core cross-section, reducing total steel consumption and lowering transformer manufacturing costs
Stable Coating & Reliable Processability
Uniform insulating coating with good stress resistance; stable magnetic properties after stress relief annealing, compatible with high-speed automatic stamping lines
Imagine reducing transformer no-load loss by approximately 15-17% without changing your core design.. That's exactly what 23QG100 delivers.
Send us your transformer specs and get a tailored efficiency report
23QG100 0.23mm Silicon Electrical Steel for transformers
Core Application Fields
- 10kV-35kV high-efficiency distribution transformers
- 66kV-220kV medium-voltage power transformers
- Photovoltaic inverter transformers & wind turbine step-up transformers
- Precision instrument transformers & series reactors
Targeted Industry Solutions
- For transformer manufacturers: Custom width slitting + technical support for core loss matching
- For energy-saving renovation projects: Small-batch fast delivery for old transformer core upgrading


How Much Energy Can 23QG100 Save?
| Core Material | Core Loss |
|---|---|
| 23Q120 | 1.20 W/kg |
| 23Q110 | 1.10 W/kg |
| 23QG100 | 1.00 W/kg |
For a typical 1000 kVA distribution transformer operating continuously, upgrading from 23Q120 to 23QG100 may reduce annual no-load energy losses by approximately 15-17%, depending on core design and operating conditions.

Why Choose GNEE Electric?
GNEE Electric – Value-Added Services
- Flexible coil specifications: We supply prime quality, concession/off-grade, jumbo coils (12–15 tons), and small/mini coils (from 50 kg upward) to suit different production volumes and cost requirements.
- In-house precision processing lines: Equipped with slitting, cut‑to‑length, automatic lamination stacking, laser cutting, edge finishing, and narrow strip recoiling equipment, supporting high‑precision customisation.
- Core processing services: We offer precision slitting, cut‑to‑length blanking, laminated core stacking (limbs + yokes) per your drawings, and narrow strip pancake coil winding – delivering semi‑finished or fully assembled components.
- Multiple edge finishing options: Available in as‑rolled/mill edge, sheared/trimmed edge, slit edge, dressed/finished edge, deburred edge, square/right‑angle edge, rounded edge, chamfered edge, laser‑cut edge, and punched/stamped edge – meeting various insulation and voltage withstand requirements.












GNEE Electric – Packaging & Logistics
- Professional packaging: Coils are wrapped with inner rust‑proof paper and PE film, and secured with outer steel straps. Sheets and cores are packed on fumigated wooden pallets or reinforced wooden cases with shock‑proof and moisture‑proof protection. Vacuum packaging and other custom solutions are available upon request. All packages carry full traceability markings.
- Global shipping: Shipments can be made from major Chinese ports such as Shanghai, Qingdao, and Tianjin. We support FCL, LCL, air freight, China‑Europe Railway Express, and multimodal transport. Customs clearance, cargo insurance, door‑to‑door delivery, and real‑time tracking services can be arranged.
- Trade terms & lead time: We accept EXW, FOB, CFR, CIF, DDP, and other common trade terms. Standard lead times: 7–15 days for stock coils, 15–25 days for slitting/cut‑to‑length, and 25–40 days for custom core assembly. Free A4‑sized samples and small trial orders are available for quality evaluation and process verification.





Ready to Upgrade Your Transformer Core Material?
Don't let outdated steel eat into your profits. 23QG100 offers the perfect balance of ultra‑low core loss, high magnetic induction, and processability – backed by GNEE Electric's full‑service approach from coil selection to finished cores and global delivery.
Whether you need a trial sample, a small batch for R&D, or a 100‑ton monthly supply, our team is ready to support you with:
- Fast response within 12 hours
- Free technical consultation and energy‑saving calculations
- Flexible MOQ and mixed‑size slitting to minimise waste
- On‑time delivery with full quality documentation
If you are looking for a reliable supplier of 0.23mm 23QG100 oriented silicon steel with stable quality and competitive pricing, we are your ideal partner. Send us your detailed requirements (width, quantity, delivery term, etc.) via inquiry, and our technical sales team will reply with a professional quotation and solution within 24 hours. Free sample evaluation is available for qualified customers.
Request a Custom Processing Quote
FAQ
What is the core loss of 23QG100 oriented silicon steel?
The guaranteed maximum core loss of 23QG100 is 1.0 W/kg when tested at 1.7 Tesla and 50Hz.
Is 23QG100 equivalent to 23ZH100 CRGO steel?
Yes, 23QG100 and 23ZH100 are equivalent high-efficiency CRGO grades with the same 0.23mm thickness and 1.0W/kg core loss level, and can be used interchangeably in transformer core design.
What thickness is 23QG100 grain-oriented silicon steel?
23QG100 oriented silicon steel has a nominal thickness of 0.23mm.
Can you slit 23QG100 coils to custom widths?
Yes, we provide precision slitting service for 23QG100 silicon steel coils to meet custom width requirements for transformer core production.
Does 23QG100 require stress relief annealing after cutting?
Yes. Stress relief annealing is recommended after punching or cutting to recover magnetic properties and minimize processing-induced losses.
What coating type is commonly supplied for 23QG100?
T4 inorganic insulation coating is the most common option, while other coating systems can be supplied according to customer requirements.

