High‑Performance Silicon Steel for Giant Hydropower — Yarlung Tsangpo Downstream Hydropower Project Grade

The Yarlung Tsangpo Downstream Hydropower Project stands as one of the world’s largest clean‑energy infrastructure projects, with planned total installed capacity up to 81GW, dozens of giant hydro‑generator units and supporting UHV transmission substations.

High‑grade silicon steel (electrical steel) acts as the magnetic core heart for both large hydro‑generators and UHV power transformers. We supply bulk CRNO non‑oriented silicon steel for generator stator cores and Hi‑B CRGO grain‑oriented silicon steel for station step‑up transformers, fully matching strict material requirements for large‑scale hydropower construction.

✅ Bulk supply for EPC contractor, hydro‑equipment manufacturer & transformer factory
✅ Strict low‑iron‑loss grade for long‑term stable high‑altitude operation
✅ Custom slitting, coating inspection, lamination pre‑processing available
✅ Large tonnage order capacity, stable lead‑time for mega‑project procurement

Get Hydropower‑Grade Silicon Steel Quotation

Hydropower station & silicon steel material

Silicon Steel Application In Yarlung Tsangpo Hydropower Project

Two core material requirements from this landmark hydropower mega‑project:

1. Non‑Oriented Silicon Steel CRNO — For Giant Hydro‑Generator Stator & Rotor Core

Application: Stator & rotor core of 500MW‑2000MW large impulse & mixed‑flow hydroelectric generating units

Required thickness: 0.35mm ~ 0.50mm

Recommended grades: 50W350, 50W400 and above high‑permeability non‑oriented grades

Project demand background: Each single large‑capacity generator consumes 2500‑3000 tons of electrical steel; dozens of units bring massive long‑term CRNO demand

Key performance: Uniform magnetic property in all directions, low core loss, anti‑aging for continuous 24/7 generator running.

CRNO Non‑Oriented silicon steel for generator stator

2. Grain‑Oriented Silicon Steel CRGO Hi‑B — For UHV Step‑up & Station Auxiliary Transformers

Application: Core of UHV step‑up transformers for hydropower outgoing transmission lines, station service power transformers

Required thickness: 0.23mm / 0.27mm domain‑refined Hi‑B grain oriented silicon steel

Recommended grades: 23QG085, 27QG095 ultra‑low loss GO steel

Project demand background: The project supports multiple sets of UHV outgoing transmission lines, creating large‑volume demand for high‑quality CRGO silicon steel for power transformers

Key performance: Ultra‑low iron loss, high magnetic flux density, reduces energy waste during long‑distance clean‑power delivery.

CRGO Hi‑B grain oriented silicon steel for UHV transformer

Application Position	Silicon Steel Type	Typical Thickness	Target Grade Feature
Hydro‑generator stator core	CRNO Non‑Oriented	0.35‑0.50 mm	Low core‑loss, high permeability
UHV station step‑up transformer	CRGO Hi‑B Grain‑Oriented	0.23‑0.27 mm	Domain‑refined, ultra‑low loss

Why Choose Our Silicon Steel for Large Hydropower Project

Mega‑project‑qualified material standard

Our hydropower‑series silicon steel follows the same strict material specification used for world‑class hydro‑power stations such as Baihetan. Stable magnetic performance adapts to high‑altitude, complex working‑condition environment of plateau hydropower station.

Large‑tonnage bulk delivery capability

Support project‑level bulk order for thousands‑ton batch. Flexible MOQ, stable production cycle to match multi‑phase equipment manufacturing schedule of large hydropower projects.

One‑stop processing service

Provide slitting, shearing, insulation‑coating inspection, lamination pre‑processing. Deliver finished strips or sheets ready for generator & transformer core stacking, reduce customer on‑site workload.

Full‑set quality documents

Mill test certificate (MTC), magnetic‑performance test report, third‑party inspection support for EPC tender & project filing.

Frequently Asked Questions for Hydropower‑Grade Silicon Steel

Large hydro‑generator stator core mostly adopts high‑grade non‑oriented silicon steel (CRNO), typical thickness 0.35‑0.5 mm. For plateau mega‑units, low‑iron‑loss grades like 50W350 or better are preferred, to guarantee generating efficiency under long‑time continuous operation.

You need Hi‑B domain‑refined grain‑oriented silicon steel (CRGO). Thickness options 0.23 mm /0.27 mm, ultra‑low core loss grades are critical to minimize power loss when transmitting huge clean hydropower over long‑distance UHV grid.

Yes. We provide bulk supply, complete mill test documents, third‑party inspection cooperation, and customizable processing solution for EPC contractors, hydro‑equipment OEMs and transformer manufacturers.

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