Knowledge

The Specification of SPA-H High strength weathering steel plate

Sep 24, 2025 Leave a message

Products Description

 

SPA-H High strength weathering steel plate refers to the chemical composition of these steels, allowing them to exhibit increased resistance to atmospheric corrosion compared to other steels. This is because the steel forms a protective layer on its surface under the influence of the weather.

info-597-597

The corrosion retarding effect of the protective layer is produced by the particular distribution and concentration of alloying elements in it. As a result, the layer protecting the surface develops and regenerates continuously when subjected to the influence of the weather. In other words, the steel rusts to form the protective coating.

 

Products specidication

 

THICKNESS (mm): 2.5mm~25mm


WIDTH (mm): 50mm~2500mm


AVAILABLE PROCESS: Dry, pickled, and oiled


AVAILABLE FORMS: Coil, Strap, Plate, Sheet, Circle, Laser/plasma cut, and more.

 

 

 

Chemical Composition (%)

 

Grade C Si Mn P S Cr Cu V Ni
Corten A 0.12 0.25-0.75 0.20-0.50 0.07-0.15 0.030 0.50-1.25 0.25-0.55 – 0.65
SPA-H 0.12 0.20-0.75 0.60 0.07-0.15 0.035 0.30-1.25 0.25-0.50 – 0.65

 

Mechanical Properties

 

Grade Minimum yield point (ReH Mpa *) Tensile strength MPa Minimumelongation A(Lo=5.65 ?So) %
Corten A 355 470-630 20
SPA-H 355 490 22
       

*) 1 Mpa = 1N/mm2

No impact test is performed on products below 6mm in thickness.

 

APPLICATIONS

 

  • Railway rolling stock and storage hoppers /bins.info-607-449

 

  • Shipping Containers

 

  • Architectural features, cladding

 

  • Sculpture Art

 

  • Appliances

 

  • Heaters

 

  • Engine components

 

  • Specific types of transport applications

 

  • Mining

 

  • Non-residential applications.

DIMENSION CAPABILITIES

 

Send Inquiry