AMS 6490 Steel

Steel name: AMS 6490
Diagram No.: 764
AMS designation: 6490 (VAR)
AISI/SAE designation: M50
Chemical composition in weight %: 0.85% C, 0.20% Si, 0.30% Mn, 4.10% Cr, 4.25% Mo, 1.00% V
Steel group: High performance bearing steel
Applications: The grade is widely used for critical aircraft engine bearings operating at elevated temperatures. With its combination of good hot hardness and excellent rolling contact fatigue strength, M50 steel is ideally suited for highly stressed parts such as bearings and gears designed for service up to about 800F (427C).
Comment: No data
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 1093-1107oC/salt, oil
Tempering: See the diagram
Note: Diagram: Oil quenched from 1232oC, and double tempered

Tempering Diagram

Price: 20.00 US $
Buy Online Tempering Diagram

Other steel data links
Carbides in Steel
CCT & TTT diagrams of Steels
Etchants Database
Hardenability Diagrams of Steels
Macro Defects in Steel
Non-Metallic Inclusions in Steel

Disclaimer: The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes. There is no representation that the recipient of this literature will receive updated editions as the become available.

Copyright © 2017 by Steel Data. All Rights Reserved.