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Norma ASTM A494/A494M-22 1.3.2022 náhled

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ASTM A494/A494M-22

Standard Specification for Castings, Nickel and Nickel Alloy

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NORMA vydána dne 1.3.2022

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Informace o normě:

Označení normy: ASTM A494/A494M-22
Datum vydání normy: 1.3.2022
Kód zboží: NS-1050968
Počet stran: 8
Přibližná hmotnost: 24 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Anotace textu normy ASTM A494/A494M-22 :

This specification covers nickel, nickel-copper, nickel-copper-silicon, nickel-molybdenum, nickel-chromium, and nickel-molybdenum-chromium alloy castings for corrosion resistant service. The castings shall be heat treated. When Class 1 is specified, grades CY40 and M25S shall be supplied in the as-cast condition. When Class 2 is specified, grades CY40 and M25S shall be supplied in the solution treated condition. When Class 3 is specified, grade M25S shall be supplied in the age-hardened condition. The chemical composition requirements of the alloys are presented. The tensile property requirements including the heat treatment procedure for the castings are presented in detail. It is required that one tension test shall be made from each master heat except for grades M25S and CY5SnBiM when the master heat is used to pour the castings. One tension test shall be made from each melt except for grades M25S and CY5SnBiM. Test results shall conform to the specified tensile requirements.

Keywords:
corrosion-resistant applications, nickel, nickel alloy castings, nickel alloys, nickel castings,, ICS Number Code 77.150.40 (Nickel and chromium products)

Doplňující informace

1. Scope

1.1?This specification covers nickel, nickel-copper, nickel-copper-silicon, nickel-molybdenum, nickel-chromium, and nickel-molybdenum-chromium alloy castings for corrosion-resistant service.

1.2?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 nonconformance with the standard.

1.3?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

E354-21e1	Standard Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys (Includes all amendments and changes 2/23/2022).
E38-85	Methods for Chemical Analysis of Nickel-Chromium and Nickel-Chromium-Iron Alloys (Withdrawn 1989)
A488/A488M-18e2	Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel (Includes all amendments and changes 2/12/2020).
E76-88(1998)	Standard Test Methods for Chemical Analysis of Nickel-Copper Alloys (Withdrawn 2003)
E30-89	Test Methods for Chemical Analysis of Steel, Cast Iron, Open-Hearth Iron, and Wrought Iron (Withdrawn 1995)
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E8-04	Standard Test Methods for Tension Testing of Metallic Materials
A957/A957M-21	Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
A781/A781M-21	Standard Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use
A370-23	Standard Test Methods and Definitions for Mechanical Testing of Steel Products
A732/A732M-20	Standard Specification for Castings, Investment, Carbon and Low-Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures

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