Historical
ASTM A325M-07
Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength [Metric]
1.1 This specification covers two types of quenched and tempered, steel, metric heavy hex structural bolts having a minimum tensile strength of 830 MPa (Note 1).
1.2 The bolts are intended for use in structural connections. These connections are comparable to those covered under the requirements of the Specification for Structural Joints using ASTM A 325 or A 490
1.3 The bolts are furnished in sizes M12 to M36 inclusive. They are designated by type denoting chemical composition as follows:
1.3.1 Type 1—Medium-carbon, carbon boron, medium carbon alloy, or alloy boron steel.
1.3.2 Type 2—Withdrawn in 2003.
1.3.3 Type 3—Weathering Steel.
1.4 This specification is applicable to metric heavy hex, structural bolts only.
1.5 Terms used in this specification are defined in Terminology F 1789
1.6 The following safety hazard caveat pertains only to the test methods portion, Section 10, of this specification. 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.
Note 1—This specification is the metric companion to the inch pound Specification A 325.
^REFERENCE:ASTM Standards:
A 153/A 153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A 490M Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural Steel Joints [Metric]
A 563M Specification for Carbon and Alloy Steel Nuts [Metric]
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B 695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D 3951 Practice for Commercial Packaging
F 436M Specification for Hardened Steel Washers [Metric]
F 606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets [Metric]
F 788/F 788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
F 959M Specification for Compressible-Washer-Type Direct Tension Indicators for Use With Structural Fasteners [Metric]
F 1470 Guide for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F 1789 Terminology for F16 Mechanical Fasteners
G 101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels
ASME Standards:
B 1.13M Metric Screw Threads
B 18.2.3.7M Metric Heavy Hex Structural Bolts
B 18.18.3M Inspection and Quality Assurance for Special Purpose Fasteners
B 18.24 Part Identifying Number (PIN) Code System Standard for B18 Fastener Products
^KEYWORDS: alloy steel; bolts; carbon steel; metric; steel; structural; weathering steel ^INDEX TERMS: Bolted construction materials/applications|specifications; High-strength structural steel|specifications; Steel bolting materials|specifications; Structural steel (SS) bolting materials|specifications ^STATUS: Dn Cn Sn Nn Mn ^APPROVAL: 20071201 ^PAGES: 7 ^COMMITTEE: F16 ^SUBCOMMITTEE: 0200 ^BOS: 01.08 ^ORGINFO: DOD NASA ^ACTION: STD_REVISION ^MISCPUB: 50.05 ^PDESIG: A0325M ^PYEAR: 2007 ^CLASS: SpecificationASTM International [astm]