ASTM-F788 › Standard Practice for Radiographic Examination Using Digital Detector Arrays
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
1.1 This specification establishes allowable limits for the various types of surface discontinuities that may occur during the manufacture and processing of bolts, screws, and studs, including heat-treated machine screws, tapping screws, and sems (the washers of screw-washer assemblies are excluded). This specification covers metric series products with nominal diameters of 4 mm and larger and with specified minimum tensile strengths of 800 MPa and greater; and inch series products with nominal diameters of No. 5 (0.1250 in.) and larger and with specified minimum tensile strengths of 90 000 psi and greater.
1.2 The values stated in either SI (metric) or inch-pound units are to be regarded separately as standard. The values stated in each system are not exact equivalents, therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
1.3 When the engineering requirements of the application necessitate control of surface discontinuities on bolts, screws, or studs, the purchaser shall specify conformance to ASTM Specification F788/F788M, in the original inquiry and purchase order.
1.3.1 When the engineering requirements of the application necessitate that surface discontinuities on bolts, screws, and studs be controlled within limits closer than those specified in this specification, the purchaser shall specify the applicable limits in the original inquiry and purchase order.
1.4 The allowable limits established in this specification for metric bolts, screws, and studs with nominal diameters from 4 to 24 mm inclusive, are essentially identical with requirements given in ISO/DIS 6157/I. There are no ISO standards for surface discontinuities on metric series bolts, screws, and studs with nominal diameters larger than 24 mm or on any inch-series products.
Keywords
Discontinuities-fasteners; Fasteners (metal)-bolts/screws/studs; Stainless steel-screws; Steel bolting materials-bolts; Steel bolting materials-screws; Steel bolting materials-studs; Surface analysis-metals/alloys; Visual examination-steel; ICS Number Code 21.060.10 (Bolts, screws, studs)
To find similar documents by ASTM Volume:
01.08 (Fasteners; Rolling Element Bearings)
To find similar documents by classification:
21.060.10 (Bolts, screws, studs)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Customers who bought this document also bought:
ASTM-E18Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM-E1316
Standard Terminology for <?Pub Dtl?>Nondestructive Examinations
ASTM-A240
Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
Document Number
ASTM-F0788_F0788M-20E01
Revision Level
2020(E1) EDITION
Status
Current
Modification Type
Revision
Publication Date
Sept. 12, 2023
Document Type
Specification
Page Count
6 pages
Committee Number
F16.93