Complete Guide to Stainless Steel Wire Mesh Specifications

Stainless steel wire mesh specifications can be complex, but understanding the key parameters is essential for selecting the right mesh for your application. This guide covers everything you need to know about wire mesh specifications.

Understanding Mesh Count

Mesh count is the number of openings per linear inch, measured from the center of one wire to the center of the adjacent wire. It is the most fundamental specification parameter.

For example, a 100-mesh screen has 100 openings per linear inch. Higher mesh counts mean finer filtration and smaller openings.

Wire Diameter and Gauge

Wire diameter is the thickness of the wire used to weave the mesh, typically measured in millimeters or inches. It directly affects the strength, durability, and open area of the mesh.

Opening Size and Open Area

The opening size is the distance between adjacent wires, calculated from the mesh count and wire diameter. Open area percentage represents the ratio of open space to total screen area.

Weave Patterns

There are three primary weave patterns for wire mesh:

• Plain Weave: Each warp wire passes alternately over and under each weft wire. Most common and economical.
• Twill Weave: Each warp wire passes over two and under two weft wires. Allows heavier wire with finer mesh.
• Dutch Weave: Warp wires are heavier than weft wires. Creates very small openings for fine filtration.

Material Grades

The most common stainless steel grades for wire mesh are:

• 304 SS: General purpose, 18% Cr / 8% Ni. Good corrosion resistance in most environments.
• 316 SS: Marine grade, 16% Cr / 10% Ni / 2% Mo. Superior corrosion resistance in chloride environments.
• 316L SS: Low carbon variant of 316. Preferred for welded constructions.

How to Read a Specification Sheet

A complete wire mesh specification should include:

1. Material grade (e.g., AISI 304)
2. Mesh count (e.g., 100 x 100)
3. Wire diameter (e.g., 0.08mm)
4. Opening size (e.g., 0.174mm)
5. Weave type (e.g., Plain weave)
6. Width and length
7. Applicable standard (e.g., ASTM E2016)

Common Standards