904L Stainless Steel Wire Mesh – Alloy Overview

904L stainless steel wire mesh is a superaustenitic stainless steel alloy originally developed to have excellent corrosion resistance to environments containing dilute sulfuric acid. Today, it is used in a broad range of different process environments, including in both inorganic and organic acid settings. With high chromium (21%), nickel (25.5%), molybdenum (4.5%), and copper (1.5%) content, 904L stainless steel wire mesh possesses great resistance to general corrosion. Its chromium and molybdenum additions further provide 904L with superior resistance to general corrosion, pitting, and chloride stress corrosion cracking as compared to T-316L. In cases where cost is a factor, 2205 duplex is often substituted for 904L given its similar corrosion resistance, higher mechanical strength, and lower cost (keep in mind, however, 2205 duplex should not be used above 570°F). In cases where both higher corrosion resistance and strength are required, 2507 super duplex or ZERON® 100 super duplex are often substituted in place of 904L. Some characteristics of 904L stainless steel wire cloth which dictate its use are:

  • Superaustenitic stainless steel.
  • Non-magnetic in all conditions.
  • Withstands outdoor exposure without rusting.
  • Good fatigue strength & excellent corrosion resistance in severe industrial and chemical settings.
  • Good resistance to inorganic acids (i.e. hot phosphoric acid) as well as most organic acids.
  • Lower resistance to nitric acid vs. T-304L (which is free of molybdenum).
  • Best used in temperatures below 750°F (undergoes embrittlement at higher temperatures).
  • Easily welded, more difficult to cut and form than T-316L (thus, higher cutting forces are required).

Industries & Applications

904L stainless steel wire cloth is primarily used in chemical/petrochemical, food processing, and oil field/refinery industries. Additional industries and applications which commonly use 904L stainless steel wire cloth include:

  • Architectural (seashore/urban areas)
  • Biofuel Plants
  • Boat/Yacht Fittings
  • High Chloride Environments
  • Liquid Filtration & Particle Separation
  • Marine Applications
  • Power Plant
  • Textile
  • Wastewater Treatment

Common Aliases

904L stainless steel is also commonly referred to as:

  • UNS N08904
  • 904L Stainless
  • 1.4539 Stainless

904L Stainless Steel Wire Mesh – Typical Chemistry

UNS N08904 - 904L Stainless Steel Wire Mesh - Typical Chemistry
904L Stainless Steel
ASTM A240Min000001923401

Typical Standards

904L Stainless Steel Wire Cloth – Harmonized Tariff Codes: Chapter 73

Woven 904L Wire Mesh:

  • 0-30 Mesh: 7314141000
  • 31-91 Mesh: 7314142000
  • 92+ Mesh: 7314149000

Welded 904L Wire Mesh:

  • 3.937″+ Center-to-Center AND .1181″+ Wire Diameter: 7314200000
  • <3.937″ Center-to-Center OR <.1181″ Wire Diameter: 7314390000

Manufacture/Supply-to-Order Capability

Phoenix Wire Cloth can manufacture-to-order any combination of mesh opening size + wire diameter(s) to supply you with the woven or welded 904L stainless steel wire mesh, bolting cloth, milling cloth, or filter cloth that you require. In addition, we can slit, cut, punch, form, heat treat, powder coat, etc. 904L wire mesh to deliver the exact material you require.

Call or email us for a quote today!

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