Nimonic 86: Complete Properties & Application Guide

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Overview

Nimonic 86 (UNS N07306) is a nickel-chromium-molybdenum alloy with excellent oxidation and carburization resistance up to 1000°C. The addition of cerium enhances the adhesion and healing of the protective oxide scale, providing superior long-term performance in hostile environments.

Chemical Composition

The chemical composition of Nimonic 86 is carefully controlled to achieve its unique combination of properties and performance characteristics.

Element	Min %	Max %
Nickel (Ni)	59.0	Balance
Chromium (Cr)	24.0	26.0
Molybdenum (Mo)	9.0	11.0
Cobalt (Co)	—	2.5
Aluminum (Al)	—	0.30
Carbon (C)	—	0.10
Cerium (Ce)	0.03	0.10
Iron (Fe)	—	2.0

Mechanical Properties at Room Temperature

The mechanical properties of Nimonic 86 vary depending on product form and heat treatment condition. The data below represents typical values for solution-annealed material.

Property	Value
Tensile Strength	730 MPa
Yield Strength (0.2% offset)	300 MPa
Elongation in 2 inches	45%
Density	8.53 g/cm3
Melting Point	1360 °C
Max Service Temperature	1000 °C

Corrosion Resistance

Excellent oxidation resistance up to 1000°C. Outstanding resistance to carburization in high-temperature carbon-containing environments. Good resistance to sulfidation and nitridation. The cerium addition improves scale adhesion under thermal cycling.

Applications

The unique combination of properties makes Nimonic 86 suitable for a wide range of demanding applications:

• Gas Turbines: Combustion chamber components and heat shields.
• Industrial Furnaces: Furnace components and heat treatment baskets.
• Petrochemical: Reformer tubes and catalyst support grids.
• Heat Treatment: Muffles, retorts, and furnace structural parts.
• Waste Incineration: Grates and internal components in incineration plants.

Available Product Forms

Hangbo Alloy Group manufactures and supplies Nimonic 86 in the following product forms, conforming to ASTM, AMS, and ASME specifications:

• Round Bars: Diameters from 6 mm to 300 mm, hot-finished or cold-drawn, solution annealed.
• Seamless Tubes & Pipes: Sizes from 6 mm OD to 219 mm OD, various wall thicknesses.
• Plates & Sheets: Thicknesses from 0.5 mm to 50 mm, hot-rolled or cold-rolled.
• Forgings: Custom flanges, rings, discs, and complex shapes per customer drawing.
• Welding Wire: Diameters 0.8 mm to 5.0 mm, precision-wound coils and spools.

Related Standards

Standard	Description
BS HR4	British Standard Bar
BS HR204	British Standard Forging
DIN 17742	German Standard
AMS 5869	Sheet and Strip
ASTM B670	Plate
VdTUV 499	German Approval

Contact Us for Nimonic 86

Hangbo Alloy Group maintains extensive inventory of Nimonic 86 in all standard product forms. We can provide mill test certificates, third-party inspection reports (SGS, TUV), and custom processing services.

For quotations, material certifications, or technical consultation, contact our sales team or call +86-136-1165-6360. We typically respond within 10 minutes.