Incoloy 800 Ni-Fe-Cr Alloy Welding Wire

Specifications: UNS N08800  Werkstoff Nr. 1.4876
Applications: Incoloy 800 wire is widely used in equipment that must have high strength and resistance to oxidation, carburization and other harmful effects of high-temperature exposure.

Incoloy 800 Ni-Fe-Cr Alloy Welding Wire

Incoloy 800 Ni-Fe-Cr Alloy Welding Wire Introduction

Incoloy 800 is nickel-iron-chromium alloy designed with good strength and to resist oxidation and carburization at elevated temperatures. The high nickel content (30% Min.) makes the alloy highly resistant both to chloride stress-corrosion cracking and to embrittlement from precipitation of sigma phase. The general corrosion resistance is excellent.

A high chromium content gives Incoloy 800 good resistance to oxidation. It also resists many aqueous media and is relatively free from stress-corrosion cracking. Incoloy 800 has excellent resistance to nitric acid at concentrations up to approximately 70% and at temperatures up to the boiling point. It also has good resistance to organic acids, such as formic, acetic, and propionic. It resists a variety of oxidizing and nonoxidizing salts, but not halide salts.

Typical applications are heat treating equipment, petrochemical pyrolysis tubing and piping systems, sheathing for electrical heating elements, food processing equipment.

Incoloy 800 is also known as Nicrofer 3220, Nicrimphy 800, and Pyromet 800.

Incoloy 800 Ni-Fe-Cr Alloy Welding Wire Specification

Grade UNS Werkstoff Nr.
Incoloy 800 N08800 1.4876

Incoloy 800 Ni-Fe-Cr Alloy Welding Wire Typical Chemical Composition

Element Min % Max %
Ni 30 35
Co 2
Cu 0.75
Cr 19 23
Al 0.15 0.6
C 0.1
Si 1
Mn 1.5
Ti 0.15 0.6
Fe bal
S 0.015

Incoloy 800 Ni-Fe-Cr Alloy Welding Wire Physical Properties

Grade Density Melting Point
Incoloy 800 8.0 g/cm3 1350°C-1400 °C

Incoloy 800 Ni-Fe-Cr Alloy Welding Wire Typical Mechanical Properties

Grade Tensile Strength Yield Strength Elongation
Incoloy 800 520 N/mm² 205 N/mm² 30%

Please note that the above specifications are “general specifications” that pertain to the majority of our production. These specifications should only be used for general, informational purposes. All dimensions and specifications are nominal and are subject to normal manufacturing tolerances. All specifications are subject to change without prior notice. All pictures shown are for illustration purposes only. Actual product may vary.


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