0.23mm 0.75W/kg Oriented Silicon Steel Coil 23RK075

 

23RK075 is a 0.23 mm high heat-resistant laser-scribed grain-oriented electrical steel (CRGO) developed and manufactured by Baosteel for premium transformer core applications.

 

Its key performance indicators include an exceptionally low core loss (P₁₇/₅₀) of only 0.75 W/kg and a magnetic flux density (B₈₀₀) of ≥1.90 T. Compared with conventional products of the same grade (typically around 0.95 W/kg), 23RK075 reduces core loss by approximately 21%, significantly improving transformer energy efficiency.

 

 

The RK series adopts advanced grain refinement and high-temperature magnetic stabilization technologies, enabling outstanding thermal stability. Even under continuous high-load operation at temperatures above 150°C, its magnetic aging degradation remains below 3%, compared with over 8% for conventional grades, ensuring highly stable long-term performance with minimal magnetic property fluctuation.

 

Recognized by leading global transformer manufacturers and distributors, 23RK075 has become a preferred CRGO material for high-efficiency, high-temperature transformer cores and other premium power equipment.

 

 

 All indicators comply with IEC international electrical steel standards and global power equipment manufacturing specifications, ensuring full compatibility with overseas transformer production and processing requirements.

 

The detailed core parameters are listed below:

Parameter Item	Technical Data
Rated Thickness	0.23mm
Standard Core Loss (P1.7/50)	0.75 W/kg
Magnetic Induction (B800)	≥1.88T
Stacking Factor	≥0.97
Insulation Coating	Standard inorganic insulating coating
Thermal Stability	High heat resistance, low magnetic aging
Applicable Frequency	50/60Hz global power frequency

 

 

23RK075 is a premium domain‑refined CRGO steel designed for high‑efficiency transformers, delivering measurable gains in energy saving, thermal reliability, and manufacturability.

 

Superior energy efficiency – With a guaranteed core loss of 0.75 W/kg (at 1.7 T, 50 Hz) and high permeability (B₈₀₀ ≥ 1.90 T), this grade reduces no‑load losses by ~21% compared to conventional 0.23 mm GO steels (~0.95 W/kg). It readily meets the latest energy‑efficiency certifications across the EU, Southeast Asia, and the Middle East, giving manufacturers a clear competitive edge in regulated markets.

 

Exceptional high‑temperature stability – The proprietary RK heat‑resistant treatment suppresses magnetic aging to <3% even under prolonged 150 °C+ overload conditions, whereas standard grades often degrade by >8%. This ensures consistent performance and extends service life in outdoor, high‑ambient, and heavy‑load transformer applications.

 

Outstanding processability – The coil features a smooth, uniform insulation coating, tight thickness tolerances (±5 µm typical), and excellent flatness. It supports high‑speed slitting, stamping, and stacking with minimal burr, enabling automated mass production and reducing material scrap rates-directly improving yield and throughput for core manufacturers.

 

 

23RK075 Baosteel original CRGO coil is a versatile and high-performance electrical steel material, widely used in various medium and high-efficiency transformer core manufacturing scenarios. It is deeply favored by overseas terminal power manufacturers and silicon steel distributors for its stable quality and wide applicability.

 

In the terminal power industry, 23RK075 CRGO for transformer core is mainly used for distribution transformers, power transformers, dry-type transformers, box-type substations, as well as supporting boost transformers for photovoltaic, wind power and other new energy power generation projects. It is also applicable to high-precision small power cores and industrial power supply equipment.

 

 

23RK075 price FOB is one of the most concerned issues for global purchasers. As of Q3 2026, the reference FOB Shanghai price of genuine 23RK075 Baosteel CRGO coil is in the range of USD 1,850 – 2,200 per metric ton for standard-sized bulk orders. This price is for reference only, and the actual transaction price will fluctuate with market changes and specific order requirements.

 

The final 23RK075 price FOB is mainly affected by the following core factors:

• Order quantity: Bulk orders over 20 tons enjoy obvious volume discount, and the unit price is more favorable than small-batch trial orders.
• Custom processing requirements: Additional processes such as precision slitting, flattening and special coating treatment will increase corresponding processing costs.
• Raw material market fluctuation: The price of oriented silicon steel is linked to the price of upstream steel billet and rare earth elements, and will be adjusted dynamically with the market cycle.
• Designated FOB port: Different loading ports will cause differences in domestic logistics and port charges, which will affect the final FOB quotation.

 

To get the latest real-time 23RK075 price FOB and detailed quotation sheet, you can send us your specific purchase demand including required quantity, size specification and delivery time. We will reply with a competitive targeted quotation and available stock information within 24 working hours.

Real-time 23RK075 price FOB

 

 

When selecting CRGO silicon steel coil for transformer manufacturing, buyers often compare 23RK075 oriented silicon steel with conventional electrical steel grades to match performance requirements and cost budgets. The table below compares core indicators of mainstream export grades to help you make accurate material selection:

 

Steel Grade	Thickness	Core Loss (P1.7/50)	Thermaal Stability	Typical Application
23RK075	0.23mm	≤0.75 W/kg	Excellent (domain-refined, low magnetic aging)	High-efficiency distribution transformers, new energy boost transformers
23R075	0.23mm	≤0.75 W/kg	Standard	Common efficiency transformers, indoor power equipment
30Q130	0.30mm	≤1.30 W/kg	Standard	Low-cost ordinary transformers, low-demand power scenarios
27RK090	0.27mm	≤0.90 W/kg	Good	Medium-efficiency power transformers, conventional distribution networks

 

 

When overseas buyers buy 23RK075 silicon steel coil, it is critical to identify genuine Baosteel original products and professional export suppliers to avoid unqualified substitute materials affecting equipment quality. As a professional overseas supplier of Baosteel CRGO silicon steel, we provide one-stop standardized export sourcing services for global customers.

 

We supply 100% genuine 23RK075 Baosteel original coils, complete with official MTC material test certificates, third-party inspection reports and full export qualification documents, meeting the customs clearance and quality inspection requirements of various countries. We support diversified customization services, including fixed-size slitting, flattening, deburring and surface protection treatment, to meet the personalized processing needs of different transformer factories and distributors.

 

Our products adopt professional export moisture-proof, rust-proof and shock-proof packaging, suitable for long-distance sea transportation and long-term overseas storage. We support flexible cooperation modes including spot bulk ordering, long-term exclusive distribution and project customized procurement, providing stable and sustainable supply guarantee for global partners.

 

 

For global distributors and power manufacturers looking to buy 23RK075 silicon steel coil, choosing a reliable supplier directly determines product quality, delivery stability and procurement cost. As a professional exporter focusing on grain-oriented electrical steel, GNEE Steel provides full-chain supply services for 23RK075 Baosteel original coils with core advantages as follows:

 

 

1. Authorized original channel with 100% genuine guarantee

We maintain long-term and stable strategic cooperation with Baosteel, and all 23RK075 oriented silicon steel coils are supplied directly from the mill, with complete official MTC 3.1 material certificates and traceable batch information. We strictly reject substitute and shoddy products to protect the brand reputation and end product quality of our cooperative customers.

2. One-stop custom processing capacity

We are equipped with professional slitting, flattening, deburring and edge trimming production lines, which can process CRGO silicon steel coil into specified width and size according to customer drawings. The processing precision meets international transformer manufacturing standards, effectively reducing your secondary processing cost and material waste.

 

 

3. Mature global export service system

We have rich experience in electrical steel export, complete customs clearance and commodity inspection qualifications, and professional export moisture-proof and rust-proof packaging solutions. We support FOB, CIF, CFR and other trade terms, and can match stable shipping routes to major ports in Europe, Southeast Asia, the Middle East and South America, ensuring safe and on-time delivery of goods.

 

 

4. Flexible cooperation mode for distributors & end users

For overseas silicon steel distributors, we support long-term exclusive distribution cooperation, fixed monthly supply and shared inventory plans, with competitive bulk price policies. For terminal power equipment factories, we support trial orders and project-based customized procurement, with professional technical personnel to provide material selection guidance throughout the process.

 

GNEE Steel specializes in the export of genuine 23RK075 Baosteel CRGO coils, providing standard export packaging, complete certification documents, flexible processing services and stable supply capacity. Whether you are an overseas silicon steel distributor seeking long-term cooperative supply or a power manufacturer needing customized transformer core materials, we can provide you with professional one-stop procurement solutions.

 

Welcome to contact us for 23RK075 price FOB, spot inventory check, technical parameter consultation and bulk order quotation. We look forward to establishing long-term stable win-win cooperation with global customers.

 

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