Significance and Use
The requirements expressed in this test method are intended to control the quality of the radiographic images, to produce satisfactory and consistent results, and are not intended for controlling the acceptability or quality of materials or products.
1.1 This test method provides a uniform procedure for radiographic examination of metallic castings using radiographic film as the recording medium.
1.2 Due to the many complex geometries and part configurations inherent with cast products, it is necessary to recognize potential limitations associated with obtaining complete radiographic coverage on castings. Radiography of areas where geometry or part configuration does not allow achievement of complete coverage with practical radiographic methods shall be subject to mutual agreements between purchaser and supplier. The use of alternative nondestructive methods for areas that are not conducive to practical radiography shall also be specifically agreed upon between purchaser and supplier.
1.3 The radiographic method is highly sensitive to volumetric discontinuities that displace a detectable volume of cast material. Discontinuities that do not displace an appreciable volume of material, however, such as cracks or other planar-type indications, may not be detected with radiography unless the radiation beam is coincidentally aligned with the planar orientation of the discontinuity. In view of this limitation, it may be considered appropriate to use the radiographic method in conjunction with additional nondestructive methods that maintain reliable detection capabilities for these types of discontinuities. The use of additional methods shall be specifically agreed upon between the purchaser and supplier.
1.4 The radiographic techniques stated herein provide adequate assurance for defect detectability; however, it is recognized that, for special applications, specific techniques using more or less stringent requirements may be required than those specified. In these cases, the use of alternate radiographic techniques shall be as agreed upon between purchaser and supplier (also see Section 5).
1.5 The values stated in inch-pound units are to be regarded as standard.
1.6 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.
ISO 5579 Non-Destructive Testing-Radiographic Examination of Metallic Materials by X-and Gamma-rays--Basic Rules
E94 Guide for Radiographic Examination
E155 Reference Radiographs for Inspection of Aluminum and Magnesium Castings
E186 Reference Radiographs for Heavy-Walled (2 to 412-in. (50.8 to 114-mm)) Steel Castings
E192 Reference Radiographs of Investment Steel Castings for Aerospace Applications
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
E310 Reference Radiographs for Tin Bronze Castings
E446 Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness
E505 Reference Radiographs for Inspection of Aluminum and Magnesium Die Castings
E543 Specification for Agencies Performing Nondestructive Testing
E689 Reference Radiographs for Ductile Iron Castings
E747 Practice for Design, Manufacture and Material Grouping Classification of Wire Image Quality Indicators (IQI) Used for Radiology
E802 Reference Radiographs for Gray Iron Castings Up to 412 in. (114 mm) in Thickness
E999 Guide for Controlling the Quality of Industrial Radiographic Film Processing
E1025 Practice for Design, Manufacture, and Material Grouping Classification of Hole-Type Image Quality Indicators (IQI) Used for Radiology
E1079 Practice for Calibration of Transmission Densitometers
E1254 Guide for Storage of Radiographs and Unexposed Industrial Radiographic Films
E1316 Terminology for Nondestructive Examinations
E1320 Reference Radiographs for Titanium Castings
E1815 Test Method for Classification of Film Systems for Industrial Radiography
CP-189 Qualification and Certification of Nondestructive Testing Personnel
castings; gamma-ray; nondestructive testing; radiographic; radiography; X-ray; Castings; Cast iron (testing); Metals and metallic materials; Penetrameters; Radiographic examination; Steel castings ;
ICS Number Code 77.140.80 (Iron and steel castings)
ASTM International is a member of CrossRef.
Citing ASTM Standards
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