Super Duplex 2507 Flat Washers

Super Duplex (2507 Stainless Steel) is the true marine grade stainless as it is 100% corrosion resistant in salt water (it has a minimum PREN value of 41) and can withstand even the harshest environments. These make them the best coastal fasteners around!

Advantages

Can be specified for sea water piling applications in H6 timber
High strength (800 - 1000 MPa tensile strength)
Extreme corrosion resistance and has a minimum PREN Value of 41, far higher than 316 Stainless Steel
Ideal for coastal construction such as piers, sea walls and pilings/footings
Other Super Duplex 2507 Stainless items can be made to order

Installation

To maintain 100% corrosion resistance to saltwater, please follow the below guidelines when working/handling Super Duplex (2507 SS).

Only use tools that have been exclusively used on SS material to avoid cross contamination of carbon steel onto Super Duplex (2507 SS)
If Super Duplex (2507 SS) fasteners are worked with high temperature processes such as welding, annealing or cutting with cutting discs, use a pickle/passivating paste on the affected area to reduce the corrosion caused by heating

Specifications

Corrosion Resistance - PREN Values

Downloads

Super Duplex (2507 SS) Fasteners for Building & Construction

Super Duplex (2507 SS) Fasteners for Engineering & Manufacturing