Metal for Hydropower Plants: A Buyer Guide

Metal for Hydropower Plants: A Buyer Guide

Short answer: Hydropower plants use carbon and high-strength low-alloy steel for penstocks and structures, stainless steel for turbine runners and gates exposed to cavitation, and galvanized or stainless steel for trash racks and fasteners, all chosen for strength, weldability and water-side corrosion resistance.

At a Glance

Metal for Hydropower Plants: A Buyer Guide chart
Figure 1 – Metal for Hydropower Plants: A Buyer Guide overview.

What Hydropower Needs

Water, pressure and grit load the metal, so strength and weldability lead the choice, with the basis in our Metal Strength Comparison and the grade map in our Carbon Steel Supplier page.

Penstocks and Piping

Large welded penstocks use carbon and HSLA plate, detailed in our Piping and Pipeline Guide y Pressure Vessels Guide; welding is in our Welding Joining Guide.

Turbines and Gates

Runners and gates face cavitation, so stainless grades are used, with resistance data in our Corrosion Resistance Guide and casting in our Casting Methods Guide.

Corrosion and Sourcing

Water-side protection comes from coatings and stainless trim, covered in our Corrosion Protection Guide; buyers confirm grade and cert via our Mill Test Certificate Guide and pack per our Export Packing Guide.

Get a Quote

Tell HXSCO your requirements and we will respond with a competitive quote and lead time.

Preguntas frecuentes

Which steel for penstocks?

Carbon and high-strength low-alloy plate, welded and coated for water service.

Why stainless in turbines?

Stainless resists cavitation erosion and pitting in the runner and gates.

What about trash racks?

Galvanized or stainless steel racks screen debris at the intake.

How are hydropower metals inspected?

Weld and UT inspection with EN 10204 3.1 certificate.

Are fasteners stainless?

Yes – SS316 fasteners resist the wet, corrosive environment.

Source Hydropower Metal with HXSCO

HXSCO supplies plate, pipe, stainless and fasteners for penstocks, turbines and gates with the certificate your hydro project needs. Send your bill of materials for a quote.

Request a Quote