Abstract
This specification covers a group of common requirements that shall apply to carbon, alloy, and stainless steel fasteners or fastener materials, or both. These materials are intended for use at any temperature from cryogenic to the creep range. Requirements for the melting process and quality control procedures for ingot cast and strand cast products are detailed. Bars and fasteners shall be produced in accordance with the product specification. The chemical composition, as to heat and product analyses, shall conform to the limits of the product specification. Bars, fasteners, bolting materials, and specimen machined from fasteners shall meet the mechanical requirements which shall be determined by the following tests: (1) proof load test by mandrel/tension or compression methods, (2) cone proof load test, (3) impact test, and (4) hardness test. Assembly for the proof load and cone proof tests are illustrated. The depth of decarburization shall be determined by metallographic etching and if needed, microhardness testing.
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 a group of common requirements that shall apply to carbon, alloy, stainless steel, and nickel alloy bolting under any of the following ASTM Specifications (or under any other ASTM Specifications that invoke this specification or portions thereof):
| Title of Specifications | ASTM Designation |
| Alloy-Steel and Stainless Steel Bolting Materials
for High-Temperature Service | A193/A193M |
| Carbon and Alloy Steel Nuts for Bolts for High
Pressure and High-Temperature Service | A194/A194M |
| Alloy Steel Bolting Materials for Low-Temperature
Service | A320/A320M |
| Alloy-Steel Turbine-Type Bolting Material
Specially Heat Treated for High-Temperature
Service | A437/A437M |
| High-Temperature Bolting Materials With Expansion
Coefficients Comparable to Austenitic Stainless
Steels | A453/A453M |
| Alloy-Steel Bolting Materials for Special Applications | A540/A540M |
| Precipitation-Hardening Bolting Material (UNS
N07718) for High Temperature Service | A1014/A1014M |
1.2 In case of conflict the requirements of the individual product specification shall prevail over those of this specification.
1.3 Additional requirements may be specified by mutual agreement between the purchaser and supplier.
1.4 Supplementary requirements are provided for use at the option of the purchaser. The supplementary requirements only apply when specified individually by the purchaser in the purchase order or contract.
1.5 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. The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. 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 specification.
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
A29/A29M Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for
A193/A193M Specification for Alloy-Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure Service and Other Special Purpose Applications
A194/A194M Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
A320/A320M Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A437/A437M Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service
A453/A453M Specification for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels
A484/A484M Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings
A540/A540M Specification for Alloy-Steel Bolting for Special Applications
A574 Specification for Alloy Steel Socket-Head Cap Screws
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A788/A788M Specification for Steel Forgings, General Requirements
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
A1014/A1014M Specification for Precipitation-Hardening Bolting (UNS N07718) for High Temperature Service
E3 Guide for Preparation of Metallographic Specimens
E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
E384 Test Method for Knoop and Vickers Hardness of Materials
E1417 Practice for Liquid Penetrant Testing
E1444 Practice for Magnetic Particle Testing
E1916 Guide for Identification and/or Segregation of Mixed Lots of Metals
F788/F788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
AIAG Standard
AIAGB-502.00 Primary Metals Identification Tag Application Standard
Other Documents
ASNTRecommendedPract
ASME Standards
B18.3 Hexagon Socket and Spline Socket Screws
Keywords
austenitic stainless steel; bolts, steel; fasteners, steel; nickel alloy bolting; nuts, steel; pressure vessel service; screws; stainless steel bolting; steel bars, alloy; steel bars, carbon; steel bars, stainless; steel bolting; studs; temperature service applications, high; temperature service applications, low; turbine materials; washers;
ICS Code
ICS Number Code 21.060.01 (Fasteners in general)
DOI: 10.1520/A0962_A0962M-12
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