Incoloy® 825 Nickel Alloy

Chemical Analysis


.05 max


1.0 max


.03 max


.5 max


19.5- 23.5


38.0- 46.0


2.5- 3.5


1.5- 3.0


0.6- 1.2


0.2 max


22.0 min

UNS N08825 or Incoloy® 825 is a nickel-iron-chromium alloy containing small amounts of titanium, copper, and molybdenum. Workable and resistant, alloy 825 features excellent characteristics and is a popular metal alloy used in challenging environments and high-performance applications. We carry many configurations of alloy 825 in a range of sizes, with metal fabrication and treatment services to meet your material requirements.

At Magellan Metals, we are an industry-leading supplier of Incoloy® alloy products in several shapes and metal materials. Contact us for more information or call us at 203-838-5700, and we will be happy to assist you.

Incoloy® 825 Characteristics & Mechanical Properties

Alloy 825 is a compound metal alloy with a high nickel content. Due to various metal inclusions, UNS N08825 possesses high corrosion resistance and favorable mechanical properties. Demonstrating broad usefulness with optimum machining characteristics and good weldability, Incoloy® is an ideal metal alloy for strenuous applications and corrosive environments.

Corrosion Resistance

Providing resistance to stress corrosion, the high nickel content prevents cracking and works with copper and molybdenum contents for chemical resistance to phosphoric and sulfuric acids. Including molybdenum compounds also reduces pitting and crevice corrosion from surface layer oxidization. Additionally, the chromium content provides additional resistance to other oxidizing substances, like nitric acid, nitrates, and salt. To protect against intergranular corrosion, Incoloy® alloy 825 also features titanium for increased stability.

Mechanical Properties

UNS N08825 can withstand exposure to cryogenic temperatures and moderately high temperatures. However, microstructural changes can occur when exposed to temperatures above 1000 degrees Fahrenheit. With exceptional tensile and compressive yield strength properties, Incoloy® alloy 825 has a maximum tensile strength of 104,000 psi. It has good impact strength at room temperature and can retain its strength at subzero temperatures.
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Incoloy® Alloy 825 Available Formats

We supply UNS N08825 in various sizes and configurations to meet your requirements. Offerings for Alloy 825 include:
  • Sheet metal is available in thicknesses ranging from 0.020” to 0.156”
  • Strip in coil form available in lighter gauges up to 12” wide
  • Alloy 825 plate available in thicknesses up to 3”
  • Bar and wrought bars are available, featuring up to 6” diameter with larger sizes and shapes possibly forged to order
  • Seamless pipe up to 8” NB, with larger sizes available in welded construction, fabricated to order
  • UNS N08825 tubes are available, able to feature an OD of up to 1 1/2”
  • Redrawn tubes and tubing can be supplied in almost any size, no matter how small or the quantity
Our stock of Incoloy® 825 also includes wire, forgings, pipe fittings, flanges, and weld rods.

Applications for UNS N08825 Nickel Alloy

With favorable characteristics for high-stress, high-performance use, Incoloy® alloy 825 is a chosen metal for a range of applications across various industries. Alloy 825 has several industrial applications, including:
  • Propeller shafts
  • Phosphoric acid evaporators
  • Oil and gas well piping
  • Components for pickling equipment
  • Nuclear fuel and chemical processing
  • Tank trucks
  • Hot vessels for food, water, and seawater
  • Sulphuric acid piping and vessels
  • Marine exhaust systems

Start Your Next Project with High-Quality Incoloy® 825 from Magellan Metals

Magellan Metals is a first-rate supplier of high-performance Alloy 825 and nickel alloy materials. Our supply capabilities are backed by quality assurance certifications, ensuring you receive the highest quality metal alloy products for your applications. Contact Magellan Metals with your questions or request a quote to get started.