Stainless Steel Wire for Wall Ties and Facade Support

Wire that goes into a wall cannot be replaced afterwards. That is the whole argument for stainless in masonry ties, and it is a corrosion argument rather than a strength one. A galvanised tie that starts to rust expands several times its own thickness, cracks the surrounding mortar, lets water in and corrodes faster. On coastlines and in industrial atmospheres this sequence is common enough that it is designed against rather than inspected for.

Stainless wire removes the sequence at the material level. 316L holds its passive layer in salt air, de-icing salt and industrial atmosphere; 304 is adequate for inland general exposure. This wire is annealed at 550-750 N/mm2 from 0.15 mm to 12 mm, with 3-6 mm used for ties and 1-3 mm for facade mesh and railing infill.

Surface finish is a cost decision, not a performance one, for embedded parts: bright or pickled wire performs the same inside a mortar bed, so the finish should only be upgraded where the wire stays visible.

Product Specifications

What Drives the Grade

Distance to salt

Coastal distance, prevailing wind and de-icing practice decide between 304 and 316L more reliably than the building type does. A facade 200 m from the sea is a 316L project regardless of how the drawings are labelled.

Whether the part is embedded or exposed

Embedded ties sit in mortar that stays damp for long periods after construction, then dries slowly. Exposed mesh alternates between wet and dry and can be washed down. Both are chloride cases in coastal work, but only the embedded part has no inspection access.

Design life

Ties and facade anchors are usually specified to the life of the structure. Where that figure is 50 years, the material choice has to be made once, at order stage, rather than corrected later.

Applications

Masonry wall ties and anchors

Cavity ties and anchors in 3-6 mm wire, bent into the profile the wall design requires, usually 316L on coastal projects.

Facade support and decorative mesh

Support wire and woven infill panels in 1-3 mm, bright annealed where the mesh stays visible and pickled where it is concealed.

Balustrade and railing infill

Vertical and horizontal wire infill for railings and balustrades, where the wire is visible and hand contact is constant.

Product Advantages

• Grade matched to exposure - 304 inland, 316L on coastlines, de-icing routes and industrial sites, stated at order stage.
• Diameter range covers both jobs - 3-6 mm ties and 1-3 mm mesh from one specification and one tensile basis.
• Annealed for site bending - 550-750 N/mm2 allows ties to be formed to the wall profile without cracking at the bend.
• Finish chosen by function - bright where visible, pickled where embedded, so cost is not spent on surfaces nobody sees.
• Traceable lots - heat number on every coil label with mill test report 3.1, which is what project documentation usually asks for.
• Limits stated plainly - 304 is not a coastal grade, and no surface finish compensates for the wrong grade in a chloride environment.

Quality Control

Rod grade is verified by chemical or PMI check before drawing. Diameter is measured inline with end-of-coil sampling, tensile and elongation are tested per heat per ISO 6892-1, and surface is inspected for scale, scratches and die lines. Coil build and packing are checked before dispatch.

Selection and Ordering Notes

1. State the site exposure: inland, coastal distance, or de-icing salt route.
2. Confirm whether the part is embedded, concealed or visible, which sets both grade and finish.
3. Give the tie or mesh profile and the bend radii the installer will form on site.
4. State the design life and any project standard the documentation has to follow.
5. Provide sizes and annual volume for a tolerance and packing review.

Send the grade, diameter, exposure condition and profile for technical confirmation and quotation.