Wuxi Zhongxin Special Steel · Electrical steel exporter
Premium Electrical Steel Manufacturer & Grain-Oriented Silicon Steel SupplierAlso non-oriented (CRNGO) electrical steel & ultra-thin silicon steel, 0.05–0.65 mm
We roll, slit and export electrical steel — grain-oriented (CRGO), non-oriented (CRNGO) and ultra-thin silicon steel — to transformer and motor manufacturers worldwide — core loss to 0.90 W/kg, 200,000 t/yr capacity, quotations in 24 hours.
Who we are
A Wuxi mill built for export
Wuxi Zhongxin Special Steel Co., Ltd. manufactures grain-oriented (CRGO), non-oriented (CRNGO) and ultra-thin silicon steel for transformer cores and motor laminations, shipped to buyers across Europe, the Americas and Asia. Slitting, laser scribing, annealing and coating are handled in-house, so grade, gauge and coil width are matched to your line rather than sold off a fixed catalog.
Three product lines
Grain-oriented, non-oriented & ultra-thin silicon steel
Choose by how the magnetic field moves in your design, then drill into thickness and grade.
Grain-oriented · CRGO
Grain-Oriented (CRGO)
Directionally rolled for the lowest loss along the grain — the core material for power and distribution transformers.
- Thickness0.23–0.35 mm
- Core loss P1.7/50≤ 0.90 W/kg
- Induction B8≥ 1.88 T
Non-oriented · CRNGO
Non-Oriented (CRNGO)
Uniform magnetic properties in every direction — for rotating machines where the field turns through a full 360°.
- Thickness0.35–0.65 mm
- Core loss P1.5/50≤ 2.5 W/kg
- Induction B50≥ 1.70 T
Ultra-thin · high-frequency
Ultra-Thin Silicon Steel
Gauges down to 0.05 mm to cut high-frequency loss — grain-oriented and non-oriented, for HF transformers and high-speed EV motors.
- Thickness0.05–0.20 mm
- TypesCRGO & CRNGO
- ForHF cores, EV motors
By application
Matched to what you’re building
Power transformers
Low-loss Hi-B CRGO for large power cores.
Explore →Distribution transformers
Balanced loss and cost for distribution cores.
Explore →EV traction motors
High-strength, low-loss non-oriented steel.
Explore →High-frequency transformers
Ultra-thin gauges for HF cores and reactors.
Explore →Why buyers choose Zhongxin
Mill-grade material, export-ready service
Production runs under ISO 9001 and IATF 16949, tested in a CNAS-accredited lab, with RoHS and REACH compliance on every shipment.
Grade cross-reference
Working from a GB, EN or JIS spec?
We supply the full grade range across all four standard systems. Use the cross-reference to find the Chinese equivalent of your current grade.
Equivalents, at a glance
How we work
From enquiry to your dock
A simple path from spec to delivery, built for overseas buyers.
Send your spec
Grade, thickness, width and coating — or upload a drawing.
Quote in 24h
Pricing and availability within one business day.
Free samples
Test core loss and stampability, usually within a week.
Production & QC
Rolled, slit and tested to grade, with a mill certificate.
Export delivery
Moisture-proof packing and ocean freight to your port.
Resources
Specs, guides & grade data
FAQ
Sourcing silicon steel from Zhongxin
What does Wuxi Zhongxin Special Steel manufacture?
We manufacture and export grain-oriented (CRGO), non-oriented (CRNGO) and ultra-thin silicon steel, 0.05–0.65 mm, supplied as coil, sheet, slit strip or stamped laminations to transformer and motor manufacturers worldwide. See the full product range.
Which grade should I choose for my transformer or motor?
Start with how the field moves — one axis points to CRGO, a rotating field to CRNGO — then pick thickness by frequency and grade by whether loss, cost or strength matters most. Send us the application and we’ll recommend a grade and gauge, or check the grade equivalents chart.
Can you match a specific grade, like M400-50A or 50W470?
Yes — we supply across GB, EN, JIS and AISI, and can cross-reference your grade to the Chinese equivalent. Send the grade or a datasheet and we’ll confirm the match and quote.
What’s the minimum order quantity?
MOQ depends on grade, thickness and width. Tell us your target volume on the quote form and we’ll confirm what’s workable — trial quantities are possible for new projects.
How fast can you quote and ship?
Quotes come within 24 hours. Common grades often ship from stock in days; made-to-order runs and non-standard widths typically take a few weeks.
Do you provide free samples?
Yes — free samples are usually ready within about a week, so you can test core loss and stampability before committing to a full order.
Which standards and certifications do you hold?
Production runs under ISO 9001 and IATF 16949, with material to GB, EN, JIS or AISI grades and RoHS / REACH compliance. A mill test certificate ships with every order — see certifications.
Do you ship worldwide?
Yes. We pack coils and pallets in seaworthy, moisture-proof packaging and ship to any port. Payment terms are agreed at the order stage — contact our sales team to get started.
From the blog
Latest from the blog
Long-form guides for transformer and motor buyers on grade selection, sourcing and core-loss basics.
- M270-35A Non-Oriented Silicon Steel (35W270): Specs, Cost vs. Standard CRNGO, and Fit for Servo & EV Motors
M270-35A (GB 35W270) costs more per ton than a standard 0.35mm grade from our non-oriented silicon steel line like 35W300, and the reason is narrow: it guarantees roughly 10% lower core loss at the same thickness — 2.70 W/kg versus 3.00 W/kg at P1.5/50. Whether that’s worth paying for depends entirely on what the motor… Read more: M270-35A Non-Oriented Silicon Steel (35W270): Specs, Cost vs. Standard CRNGO, and Fit for Servo & EV Motors - 26 Tons of Standard CRGO Electrical Steel Coils for an Indian Distribution Transformer Maker
A distribution transformer core manufacturer in western India came to us for standard CRGO coil after domestic mill lead times outran their production schedule. This was their first order with us: 26 tons, quoted and documented against India’s IS 649 electrical steel standard. The coils below were staged and loaded in our yard for the… Read more: 26 Tons of Standard CRGO Electrical Steel Coils for an Indian Distribution Transformer Maker - EN 10204 3.1 vs 3.2 for Electrical Steel MTCs
A 3.2 certificate isn’t a “better” 3.1 — it’s a 3.1 with a second, independent signature added on top. Both report the same test results for the same coil; the difference is who is allowed to vouch for those numbers, not what got measured. For electrical steel, that mill test certificate (MTC) is what turns… Read more: EN 10204 3.1 vs 3.2 for Electrical Steel MTCs
Send your spec — get a quote in 24 hours
Share grade, thickness, width and coating, or upload a drawing. Free samples available.