1.1 ,This specification covers a group of requirements that are mandatory for castings produced by the investment casting process to meet the metallurgical requirements of the following steel casting specifications issued by ASTM.
| ASTM Designation | Title of Specification |
| A27/A27M | Steel Castings, Carbon, for General Application |
| A128/A128M | Steel Castings, Austenitic Manganese |
| A148/A148M | Steel Castings, High-Strength, for Structural Purposes |
| A297/A297M | Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat-Resistant, for General Application |
| A447/A447M | Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class), for High-Temperature Service |
| A494/A494M | Castings, Nickel and Nickel Alloy |
| A560/A560M | Castings, Chromium-Nickel Alloy |
| A732/A732M | Castings, Investment, Carbon and Low-Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures |
| A743/A743M | Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion-Resistant, for General Application |
| A744/A744M | Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service |
| A747/A747M | Steel Castings, Stainless, Precipitation Hardening |
| A890/A890M | Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application |
| A915/A915M | Steel Castings, Carbon and Alloy, Chemical Requirements Similar to Standard Wrought Grades |
| A958/A958M | Steel Castings, Carbon and Alloy, with Tensile Requirements, Chemical Requirements Similar to Standard Wrought Grades |
| A1002 | Castings, Nickel-Aluminum Ordered Alloy |