AMS 5769 | Alloy N-155 (Multimet)

Product Description

Product Overview

AMS 5769 Alloy N-155 (Multimet) is a high-temperature, nickel-cobalt-chromium superalloy designed for extreme service conditions. This precipitation-hardening alloy delivers exceptional strength and oxidation resistance at elevated temperatures up to 1800°F (982°C).

Key Features

• Superior High-Temperature Strength: Maintains mechanical properties at temperatures up to 1800°F
• Excellent Oxidation Resistance: Performs reliably in high-temperature oxidizing environments
• Good Fabricability: Can be formed, welded, and machined with proper techniques
• Thermal Stability: Resists thermal fatigue and creep at elevated temperatures

Chemical Composition

N-155 (Multimet) typically contains:

• Nickel: 19.0-22.0%
• Cobalt: 19.0-21.0%
• Chromium: 20.0-22.5%
• Tungsten: 2.5-3.5%
• Molybdenum: 2.5-3.5%
• Niobium (Columbium): 0.8-1.5%
• Iron: Balance

Applications

AMS 5769 N-155 is ideal for:

• Gas turbine engine components
• Afterburner parts
• Combustion chambers
• Exhaust systems
• High-temperature fasteners
• Jet engine tail pipes
• Industrial furnace equipment

Available Forms

• Round bar
• Flat bar
• Sheet
• Plate
• Custom cut-to-size pieces

Material Certifications

All Flight Metals N-155 products include:

• Full material certifications
• Chemical and physical test reports
• Traceability documentation
• AMS 5769 specification compliance

Technical Specifications

Specification: AMS 5769
UNS Number: N26455
Common Names: Multimet, N-155

Why Choose Flight Metals?

Flight Metals provides aerospace-grade AMS 5769 N-155 (Multimet) with complete traceability and certifications. Our materials meet the most stringent industry standards for critical high-temperature applications.

Quality Assurance

• AS9100 certified processes
• Full material traceability
• Rigorous testing protocols
• Fast delivery on standard sizes

Need a quote or custom size? Contact our materials specialists today for pricing and availability.