ASTM A743 – Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
This specification covers iron-chromium and iron-chromium-nickel alloy castings for general corrosion-resistant application. The grades covered by this specification represent Types of alloy castings suitable for broad ranges of application which are intended for a wide variety of corrosion environments.
Grade (UNS): CA6NM (J91540)
The steel shall be made by the electric furnace process with or without separate refining such as argon-oxygen decarburization (AOD).
Heat to 1850°F [1010°C] minimum, air cool to 200°F [95°C] or lower prior to any optional intermediate temper and prior to the final temper. The final temper shall be between 1050°F [565°C] and 1150°F [620°C].
Chemical Requirements: Composition, max,%
Tensile Requirements: (shall not apply unless specified in the purchase order)
|Grade Symbol||CA6NM (J91540)|
|Tensile Strength,min, ksi [Mpa]||110|
|Yield Strength, min,ksi [MPa]||80|
|Elongation in 2 in.[50 mm],min, %||15|
|Reduction of Area,min, %||35|