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MMPDS CHAPTER 6

11th Edition, July 2016

Base Document Only

Metallic Materials Properties Development and Standardization (MMPDS)

Includes all amendments and changes through Change/Amendment , July 2016


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MMPDS-11: CHAPTER 6
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Product Details:

  • Revision: 11th Edition, July 2016
  • Published Date: July 2016
  • Status: Historical
  • Document Language: English
  • Published By: Battelle Memorial Institute (BMI)
  • Page Count: 272
  • ANSI Approved: No
  • DoD Adopted: Yes

Description / Abstract:

GENERAL

Heat-resistant alloys are arbitrarily defined as iron alloys richer in alloy content than the 18 percent chromium, 8 percent nickel types, or as alloys with a base element other than iron and which are intended for elevated-temperature service. These alloys have adequate oxidation resistance for service at elevated temperatures and are normally used without special surface protection. So-called “refractory” alloys that require special surface protection for elevated-temperature service are not included in this chapter.

This chapter contains strength properties and related characteristics of wrought heat-resistant alloy products used in aerospace vehicles. The strength properties are those commonly used in structural design, such as tension, compression, bearing, and shear. The effects of elevated temperature are presented. Factors such as metallurgical considerations influencing the selection of metals are included in comments preceding the specific properties of each alloy or alloy group. Data on creep, stress-rupture, and fatigue strength, as well as crack-growth characteristics, are presented in the applicable alloy section.

There is no standardized numbering system for the alloys in this chapter. For this reason, each alloy is identified by its most widely accepted trade designation.

For convenience in presenting these alloys and their properties, the heat-resistant alloys have been divided into three groups, based on alloy composition. These groups and the alloys for which specifications and properties are included are shown in Table 6.1.