This procurement specification covers bolts made from a corrosion resistant, work-strengthened, cobalt-chromium-nickel alloy of the type identified under the Unified Numbering System as UNS R30159.

Type:

The following specification designations and their properties are covered:

AS7475

260 ksi minimum ultimate tensile strength at room temperature

205 ksi minimum ultimate tensile strength at 1100 °F

140 ksi stress-rupture strength at 1100 °F

135 ksi tension to 13.5 ksi tension fatigue at room temperature

AS7475-1

260 ksi minimum ultimate tensile strength at room temperature

132 ksi minimum ultimate shear strength at room temperature

Classification:

260 ksi minimum tensile strength at room temperature.

Application:

Primarily for use in aerospace propulsion system applications where an excellent combination of strength, creep, fatigue, and relaxation resistance is required.

Safety - Hazardous Materials:

While the materials, methods, 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.