Nickel-Iron Alloy, Corrosion- and Heat-Resistant, Bars, Forgings, Rings and Stock for Forging or Flash-Welded Rings 42.5Ni - 12.5Cr - 5.8Mo - 2.9Ti - 0.015B - 35Fe (Alloy 901) Consumable Electrode Remelted or Vacuum Induction Melted Solution Heat Treated, Stabilized, and Precipitation Heat Treated
AMS5661H
This specification covers a corrosion- and heat-resistant nickel-iron alloy in the form of bars, forgings, and flash-welded rings 5.0 inches (127 mm) and under in nominal diameter, or maximum cross-sectional distance between parallel sides (thickness), and stock of any size for forging or flash-welded rings.
Rationale:
AMS5661H is the result of a Five-Year Review and update of the specification. The revision updates the Title to match the Scope, clarifies and updates the size exception requirements (see 1.1 and 8.5), updates composition testing and reporting (see 3.1 and 3.1.2), introduces standard conditions for bars (see 3.3.1.1), prohibits bar from plate (see 3.3.1.2 and 4.2), clarifies transverse testing requirements (see 3.5.1.2), adds strain rate control (see 3.5.1.2.6), provides for additional forging stock properties (see 4.3 and 8.7), and provides for heat-treat cycle interruptions (see 3.4.2, 3.4.3, and 8.6).
Related Topics:
Heat treatment
Welding
Forging
Alloys
Heat resistant materials
Vacuum
Also known as: SAE AMS 5661
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