Industrial Large-Scale Transformer Project

High-Quality Oriented Silicon Steel
Applied to Tangshan Green Smart Steelmaking Upgrading Project

Supporting power equipment for green intelligent steel production, covering 200MVA electric arc furnace transformers and 40MVA refining furnace transformers for full production line.

Full Production Line Matching

200MVA EAF Transformer & 40MVA Refining Furnace Transformer

Silicon Steel Core Material

Stable electromagnetic performance & strong overload resistance

Energy-saving & Low-carbon

Reduce heat generation and energy consumption for heavy industry

Core Advantages of Oriented Silicon Steel Core

Grain-oriented electrical steel strip and sheet

Scope and Application GB/T 2521.2‑2016 covers cold‑rolled grain‑oriented (CRGO) electrical steel used primarily in power and distribution transformers where magnetic properties are highly directional.

Grade Designation System Format: [Thickness] [Type] [Core Loss].
• Thickness: 23=0.23 mm (ordinary permeability), ZH/Z (high permeability/Hi‑B).
• Core Loss: Maximum P1.7/50 in W/kg.
• Examples: 23ZH90, 27Q120, 30Q130, 35Q140.

Thickness Range Standard thicknesses range from 0.23 mm to 0.35 mm.

Core Loss and Magnetic Induction Requirements
Voto	Max P1.7/50 (W/kg)	Min B8 (T)	Min B1.5 (T)
23ZH90	0.90	1.90	1.94
27Q120	1.20	1.88	1.92
30Q130	1.30	1.87	1.91
35Q140	1.40	1.86	1.90

JIS C 2553 (Japanese Standard) — Cold-rolled Grain‑Oriented Electrical Steel Strip

Scope and Application JIS C 2553 covers grain‑oriented electrical steel for power transformers and large reactors.

Grain-Oriented (CRGO) Cross-Reference Table
EN Grade	JIS Grade	AISI / ASTM Grade Designation	Core Loss P1.7/50 (W/kg)	Mag. Ind. B8 (T)
23ZH90	23BHZ90 M3	23ZH90	0.90	1.90

Core Advantages of Oriented Silicon Steel Core

Reliable core material solution for large industrial transformers in heavy industry scenarios

Stable Electromagnetic Performance

Guarantee stable operation of large industrial transformers under high-current and high-temperature working environments.

Strong Overload Resistance

Adapt to fluctuating working conditions of steelmaking furnaces, ensure continuous and stable equipment operation.

Lower Heat & Energy Consumption

Effectively reduce transformer heat generation and power loss, cut down overall production operation costs.

Project Overview

High-quality oriented silicon steel is officially applied in supporting power equipment of the Tangshan Green Smart Steelmaking Upgrading Project, covering 200MVA electric arc furnace transformers and 40MVA refining furnace transformers required for the whole production line.

The silicon steel core material delivers stable electromagnetic performance and strong overload resistance. It ensures continuous and stable operation of large industrial transformers under high-current and high-temperature working environments.

It effectively reduces transformer heat generation and energy consumption, lowers overall operation costs for industrial production, and supports energy-saving and low-carbon upgrading of heavy industrial manufacturing.

Project Specifications

Project Name Tangshan Green Smart Steelmaking Upgrading Project
200MVA Equipment Electric Arc Furnace Transformer
40MVA Equipment Refining Furnace Transformer
Core Material High-Quality Oriented Silicon Steel

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