INCOLOY® 825 Wire Mesh – Alloy Overview

Incoloy 825 wire mesh (aka Alloy 825) is a nickel-iron-chromium alloy, with additions of molybdenum (~3%), copper (~2.25%), and titanium (~0.9%), designed to provide outstanding resistance to a wide array of corrosive environments. Its nickel (42%) content provides great resistance to chloride stress corrosion cracking, and, when coupled with the molybdenum and copper additions, also provides superior resistance to reducing environments containing phosphoric and sulphuric acids. Additionally, the chromium (21.5%) content gives Alloy 825 wire mesh good resistance to various oxidizing environments containing alkaline salt solutions, nitric acid, and nitrates. Its titanium addition further provides Incoloy 825 wire cloth with good stabilization against intergranular corrosion (with adequate heat-treatment).  In addition, its molybdenum content gives Alloy 825 wire mesh good resistance to pitting and crevice corrosion in chlorides. Some characteristics of Incoloy 825 wire cloth which dictate its use are:

  • Good mechanical properties in elevated-temperature settings up to 1000°F.
  • Non-magnetic in all conditions.
  • Good for use against pitting & crevice corrosion in chlorides, hydrochloric acid, nitric acid, and caustics.
  • Great for use against chloride stress corrosion cracking.
  • Excellent for use against phosphoric and sulphuric acids.
  • Maximum operating temperature of 1900°F – 2000°F.
  • Can be cut, formed, and welded.

Industries & Applications

Incoloy 825 wire cloth is principally used in environments requiring resistance to a broad mix of oxidizing and reducing corrosives at relatively high temperatures. Given its similar composition, it is frequently used for many of the same applications as Carpenter 20Cb-3 stainless steel wire cloth. Some of these applications span the chemical processing, sulfuric acid, and pharmaceutical industries. Additional industries and applications which commonly use Alloy 825 wire cloth include:

  • Acid Production
  • Food Processing
  • Gas Scrubbers
  • Oil Field & Refinery
  • Nuclear Fuel Reprocessing
  • Pickling Racks
  • Plastics & Other Synthetic Fibers
  • Pollution Control
  • Radioactive Waste Handling

Common Aliases

Incoloy 825 is also commonly referred to as:

  • UNS N08825
  • Alloy 825
  • 825 Alloy
  • Nicrofer 4221
  • NiFe30Cr21Mo3
  • NC21FeDU
  • NiCr21Mo
  • NA16
  • 2.4858

Incoloy 825 Wire Mesh – Typical Chemistry

UNS N08825 - Incoloy® 825 Wire Mesh - Typical Chemistry
Incoloy® 825
ASTM B425Min000019.5382.50.61.5220

Typical Standards

Incoloy 825 Wire Cloth – Harmonized Tariff Codes: Chapter 75

Woven Alloy 825 Wire Mesh:

  • HTS Code: 7508100000

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 Incoloy 825 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. Alloy 825 wire mesh to deliver the exact material you require.

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*INCOLOY® is a registered trademark of Special Metals Corporation

*All alloy and company names are trademarks of their respective holders. Use of them does not imply affiliation or endorsement.