Atkore Unistrut Channel Materials and Finishes

INTRODUCTION

Unistrut channels and fittings offer total flexibility in design and construction of assemblies for framing applications.

Unistrut products are available in a range of materials and finishes. These finishes offer differing degrees of corrosion protection for use in a variety of environments. Where required, factory decorative finishes, , are available to order.

MATERIALS

Channels are cold rolled from 1.5mm and 2.5mm steel strip and are available in:

PO PLAIN OILED

PG PRE - GALVANIZED

HG HOT DIP GALVANIZED

SS STAINLESS STEEL MARINE GRADE

ZP ELECTRO ZINC PLATED

Mild steel channels are rolled using material formed from BS EN 10025 with guaranteed yield 280N/mm2 and minimum ultimate tensile strength of 370N/mm2.

Stainless steel channels are rolled using material formed from BS EN10088-2 grade 1.4404 (Grade 316L).

Unistrut fittings are pressed from hot rolled, pickled and oiled mild steel plate, or strip steel mainly from grade S315MC OR grade S275 mild steel.

Stainless steel fittings are available to EN10088-2 grade1.4404

(Grade 316L).

FINISHES

Hot -Dip Galvanized

Channels are Hot-Dip Galvanized in accordance with BS EN

ISO1461:2009 and chromate passivated.

The minimum average Zinc Coating is as follows:

Cold Rolled From 1.5mm Steel – 55 microns

2.5mm Steel – 55 microns

Fittings spun galvanized – 45 microns

Pre-Galvanized

Pre-Galvanizing is to BS EN 10326 2004 (Coating Z275).

Special coatings and material grades are available on request

Stainless Steel

• Stainless Steel 1.4301 (304)

• Stainless Steel 1.4404 (316L)

• Cleaned (Pickled & Passivated) Applying a pickling process to stainless steel results in a clean product and it also removes any heat discolouration that has occurred in the welding process.