ASTM-A990 2011(Redline)

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A990-11 Standard Specification for Castings, Iron-Nickel-Chromium and Nickel Alloys, Specially Controlled for Pressure Retaining Parts for Corrosive Service (Redline)

Published By	Publication Date	Number of Pages
ASTM	2011	8

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Category: ASTM

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Description

Abstract

This specification covers iron-nickel-chromium and nickel alloy castings specially processed with restricted melt practices, weldability testing, and nondestructive examination (NDE) requirements for use in pressure retaining parts with corrosive service environments. The choice of manufacturing procedure to be used for producing the alloy castings shall be according to specified metallic contents. Materials shall conform to specified chemical composition and tensile property requirements, and weldability qualifications. Nondestructive examination requirements such as casting thickness shall be evaluated by visual, radiographic, and liquid penetrant inspection. Castings shall be repair welded and solution heat treated prior to final cleaning by blasting, and shall not be peened, plugged, or impregnated.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers iron-nickel-chromium and nickel alloy castings specially processed with restricted melt practices, weldability testing, and nondestructive examination (NDE) requirements.

1.2 A number of grades of iron-nickel-chromium and nickel alloy castings are included in this specification. Since these grades possess varying degrees of suitability for service in corrosive environments, it is the responsibility of the purchaser to determine which grade shall be furnished. Selection will depend on design and service conditions, mechanical properties, and corrosion-resistant characteristics.

1.3 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.

1.3.1 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. Within the text, the SI units are shown in brackets or parentheses.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

A351/A351M Specification for Castings, Austenitic, for Pressure-Containing Parts A370 Test Methods and Definitions for Mechanical Testing of Steel Products A488/A488M Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel A494/A494M Specification for Castings, Nickel and Nickel Alloy A703/A703M Specification for Steel Castings, General Requirements, for Pressure-Containing Parts A743/A743M Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application A744/A744M Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service A802/A802M Practice for Steel Castings, Surface Acceptance Standards, Visual Examination A903/A903M Specification for Steel Castings, Surface Acceptance Standards, Magnetic Particle and Liquid Penetrant Inspection A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys A985/A985M Specification for Steel Investment Castings General Requirements, for Pressure-Containing Parts E94 Guide for Radiographic Examination E165 Practice for Liquid Penetrant Examination for General Industry E186 Reference Radiographs for Heavy-Walled (2 to 412-in. (50.8 to 114-mm)) Steel Castings E272 Reference Radiographs for High-Strength Copper-Base and Nickel-Copper Alloy Castings E280 Reference Radiographs for Heavy-Walled (412 to 12-in. (114 to 305-mm)) Steel Castings E446 Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness

Keywords

casting; iron-nickel-chromium; nickel alloy; pressure retaining; Iron-nickel-chromium alloys–specifications; Nickel alloy castings–specifications; Nondestructive evaluation (NDE)–metallic materials; Corrosive service applications–castings ;

ICS Code

Additional information

Standard Title	A990-11 Standard Specification for Castings, Iron-Nickel-Chromium and Nickel Alloys, Specially Controlled for Pressure Retaining Parts for Corrosive Service (Redline)
Published Code	ASTM
Publication Date	2011
Pages Count	8

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ASTM-A990 2011(Redline)

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