Grain-oriented electrical steel

Product Overview

Grain Oriented Silicon Steel (GOES) is the core soft magnetic material for transformer manufacturing. Internal grains are oriented along the rolling direction to deliver superior magnetic performance. It is widely applied in oil-immersed transformers, dry-type transformers, current transformers and reactors, effectively cutting no-load loss and saving energy.

Product Form

Steel coils, cut sheets, finished core parts

Standard

GB/T 2521, Mill test certificate available

Delivery

Full truck domestic / FCL & LCL export

Custom Service

Slitting, shearing, coating, sample supply

Core Product Advantages

Key performance highlights of high magnetic grain oriented silicon steel

Low Core Loss

Reduce transformer no-load loss to realize energy saving

High Permeability

Low excitation current, minimize transformer size

Insulation Coating

Surface insulating layer lowers eddy loss & anti-rust

Excellent Machinability

Suitable for slitting, cross-cutting & core stacking

Grades & Typical Performance Parameters

Reference data for model selection. Actual data subject to mill certificate

Grade	Thickness mm	Core Loss P1.7/50 W/kg	Magnetic Flux B8 T	Typical Application
30Q120	0.30	≤1.20	≥1.85	Distribution & medium-small transformers
30Q130	0.30	≤1.30	≥1.85	General power transformers, reactors
27Q110	0.27	≤1.10	≥1.88	Energy-saving main transformers, high-end distribution transformers
23Q090	0.23	≤0.90	≥1.90	High-grade large power transformers

Note: Custom special grades available, thickness, coating & tolerance negotiable.

Main Application Scenarios

Power Main Transformer

Core for large oil-immersed substation transformers

Distribution Transformer

Grid & industrial commercial distribution transformers

Reactor & CT

PV/Wind reactors & power current transformer cores

Processing Custom Service

Raw steel coils with various widths available
Slitting service cut to customer specified width
Cross-cutting for transformer lamination sheets
Full insulation coating & surface defect inspection
Mill test certificate supplied for each batch

Packaging & Shipment

Anti-rust & moisture-proof export package for sea transport
Steel band binding for coil anti-collision protection
Domestic full truck, FCL & LCL export container shipping
Packing list & customs documents support

FAQ Frequently Asked Questions

Q: What is the difference between grain oriented & non-oriented silicon steel?

GO silicon steel has optimal magnetic performance along rolling direction for transformers. Non-oriented steel has uniform performance in all directions for motors.

Q: Can you provide test samples?

Small samples available for lab performance testing, freight cost negotiable.

Q: What is your minimum order quantity MOQ?

Raw coils have fixed minimum weight; cut sheets order quantity negotiable, full container recommended for export orders.

Q: Can third-party inspection reports be provided?

Original mill certificate attached with each shipment; third-party lab test available on request.

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