Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
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. Chemical, heat, and product analyses shall be performed wherein the material shall meet the specified composition limits for carbon, manganese, silicon, phosphorus, sulfur, nickel, chromium, molybdenum, vanadium, tungsten, copper, and aluminum. The specified design and dimensions of the ICI test bar shall be employed only for austenitic alloy castings. The material shall conform to mechanical properties including tension test requirements.
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.
Title of Specification
Steel Castings, Carbon, for General Application
Steel Castings, Austenitic Manganese
Steel Castings, High-Strength, for Structural Purposes
Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat-Resistant, for General Application
Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class), for High-Temperature Service
Castings, Nickel and Nickel Alloy
Castings, Chromium-Nickel Alloy
Castings, Investment, Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion-Resistant, for General Application
Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service
Steel Castings, Stainless, Precipitation Hardening
Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application
Steel Castings, Carbon and Alloy, Chemical Requirements Similar to Standard Wrought Grades
Steel Castings, Carbon and Alloy, with Tensile Requirements, Chemical Requirements Similar to Standard Wrought Grades
Castings, Nickel-Aluminum Ordered Alloy
1.2 This specification also covers a group of supplementary requirements that may be applied to the above specifications as indicated therein. These are provided for use when additional testing or inspection is desired and apply only when specified individually by the purchaser in the order.
1.3 When investment castings are ordered, the requirements stated in this specification form an integral part of the material specification. In cases of conflict, the requirements of this specification shall take precedence over the individual material specification requirements.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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