ASTM A297

Description / Abstract: This specification covers iron-chromium and iron-chromium-nickel alloy castings for heat-resistant service. The grades covered by this specification general purpose alloys and no attempt has been made to include het-resisting alloys used for special production application.

NOTE- For heat-resisting alloys used for special product application, references should be made to the following ASTM specification:

Specification A391, for Austenitic Steel Castings for High-temperature Service,²

Specification A217, for Martensitic Stainless Steel and Alloy Steel Castings for Pressure-Containing Parts Suitable for High-Temperature Service,²

Specification A447, for chromium-Nickel-iron Alloy Castings (25-12 Class) for High-Temperature Services²

Specification A448 for Nickel-Chromium-Iron Alloy Castings (35-15 Class) for High-Temperature Serivce.4

The values stated in inch-pound units are to be regarded as the standard.

² Annual Book of ASTM Standards, Vols 01.01 and 01.02.