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SAE AS7478

Revision D, March 1, 2017

Complete Document

Bolts and Screws, Steel, UNS S66286 Classification: 130 ksi/1200 °F 1800 °F Solution Heat Treated, Aged After Roll Threaded Procurement Specification for



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Product Details:

  • Revision: Revision D, March 1, 2017
  • Published Date: March 2017
  • Status: Active, Most Current
  • Document Language: English
  • Published By: SAE International (SAE)
  • Page Count: 19
  • ANSI Approved: No
  • DoD Adopted: Yes

Description / Abstract:

This procurement specification covers bolts and screws made from a corrosion and heat resistant, age hardenable iron base alloy of the type identified under the Unified Numbering System as UNS S66286.

Type

The following specification designations and their properties are covered:

AS7478: 130 ksi minimum ultimate tensile strength at room temperature

              65 ksi stress-rupture strength at 1200 °F

AS7478-2: 130 ksi minimum ultimate tensile strength at room temperature

                 78 ksi minimum ultimate shear strength at room temperature

Classification

130 ksi minimum tensile strength at room temperature

1200 °F maximum test temperature of parts

Application

Primarily for aerospace propulsion system applications where stress-rupture strength and creep resistance are required at elevated temperature.

Safety - Hazardous Materials

While the materials, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.

AIA/NAS Aerospace Standards