ASTM A325M-13
(Specification)Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength (Metric)
Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength (Metric)
ABSTRACT
This specification covers two types of quenched and tempered, steel, metric heavy hex structural bolts. The bolts are intended for use in structural connections. The bolts are furnished in sizes M12 to M36 inclusive. They are designated by type denoting chemical composition as follows: Type 1—Medium-carbon, carbon boron, medium carbon alloy, or alloy boron steel; and Type 3—Weathering Steel. Materials shall be tested and the individual grades shall conform to specified values of heat treatment, threading, hot-dip and mechanically coated zinc coatings, lubrication, secondary processing, chemical composition, mechanical properties such as hardness, tensile properties, and rotational capacity.
SCOPE
1.1 This specification2 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 High-Strength Bolts, approved by the Research Council on Structural Connections; endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.
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1.3.2 Type 2—Withdrawn in 2003.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 F1789.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.Note 1—This specification is the metric companion to the inch pound Specification A325.
1.7 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.
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Designation:A325M −13
StandardSpecification for
Structural Bolts, Steel, Heat Treated 830 MPa Minimum
1
Tensile Strength (Metric)
This standard is issued under the fixed designation A325M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
ε NOTE—Section 1.2 was editorially corrected in June 2013.
1. Scope* of this standard to establish appropriate safety and health
2
practices and determine the applicability of regulatory limita-
1.1 This specification covers two types of quenched and
tions prior to use.
tempered, steel, metric heavy hex structural bolts having a
minimum tensile strength of 830 MPa (Note 1).
2. Referenced Documents
1.2 The bolts are intended for use in structural connections.
3
These connections are comparable to those covered under the 2.1 ASTM Standards:
A153/A153MSpecification for Zinc Coating (Hot-Dip) on
requirements of the Specification for Structural Joints Using
High-Strength Bolts, approved by the Research Council on Iron and Steel Hardware
Structural Connections; endorsed by theAmerican Institute of A490MSpecification for High-Strength Steel Bolts, Classes
Steel Construction and by the Industrial Fastener Institute. 10.9 and 10.9.3, for Structural Steel Joints (Metric)
A563MSpecificationforCarbonandAlloySteelNuts(Met-
1.3 The bolts are furnished in sizes M12 to M36 inclusive.
ric)
Theyaredesignatedbytypedenotingchemicalcompositionas
A751Test Methods, Practices, and Terminology for Chemi-
follows:
cal Analysis of Steel Products
1.3.1 Type 1—Medium-carbon, carbon boron, medium car-
B695Specification for Coatings of Zinc Mechanically De-
bon alloy, or alloy boron steel.
posited on Iron and Steel
1.3.2 Type 2—Withdrawn in 2003.
D3951Practice for Commercial Packaging
1.3.3 Type 3—Weathering Steel.
F436MSpecification for Hardened Steel Washers (Metric)
1.4 This specification is applicable to metric heavy hex,
F606MTest Methods for Determining the Mechanical Prop-
structural bolts only.
erties of Externally and Internally Threaded Fasteners,
1.5 Terms used in this specification are defined in Termi- Washers, and Rivets (Metric)
nology F1789.
F788/F788MSpecification for Surface Discontinuities of
Bolts, Screws, and Studs, Inch and Metric Series
1.6 The values stated in SI units are to be regarded as
F959MSpecification for Compressible-Washer-Type Direct
standard. No other units of measurement are included in this
Tension Indicators for Use With Structural Fasteners
standard.
(Metric)
NOTE 1—This specification is the metric companion to the inch pound
F1136MSpecification for Zinc/Aluminum Corrosion Pro-
Specification A325.
4
tectiveCoatingsforFasteners(Metric)(Withdrawn2011)
1.7 The following safety hazard caveat pertains only to the
F1470Practice for Fastener Sampling for Specified Me-
test methods portion, Section 10, of this specification. This
chanical Properties and Performance Inspection
standard does not purport to address all of the safety concerns,
F1789Terminology for F16 Mechanical Fasteners
if any, associated with its use. It is the responsibility of the user
G101Guide for Estimating the Atmospheric Corrosion Re-
sistance of Low-Alloy Steels
1
This specification is under the jurisdiction of ASTM Committee F16 on
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,
3
Nuts, Rivets and Washers. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Feb. 15, 2013. Published March 2013. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1979. Last previous edition approved in 2009 as A325M–09 . DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/A0325M-13. the ASTM website.
2 4
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- The last approved version of this historical standard is referenced on
cation SA-325M in Section II of that Code. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A325M−13
5
2.2 ASME Standards: 3.3 Recommended Washers:
B1.13MMetric Screw Threads 3.3.1 Washers conforming to Specification F436M are the
B18.2.3.7MMetric Heavy Hex Structural Bolts recommended washers for use with Specification A325M
B18.18.3MInspection and Quality Assurance for Special Metric heavy hex structural bolts. The washers shall have a
Purpose Fasteners surface finish for each type of bolt as follows:
B18.24Part Identifyi
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A325M − 09 A325M − 13
Standard Specification for
Structural Bolts, Steel, Heat Treated 830 MPa Minimum
1
Tensile Strength (Metric)
This standard is issued under the fixed designation A325M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1
ε NOTE—Section 1.2 was editorially corrected in June 2013.
1. Scope*
2
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 ASTMUsing High-Strength A325 or Bolts, A490M bolts, approved
by the Research Council on Structural Connections; endorsed by the American Institute of Steel Construction and by the Industrial
Fastener Institute.
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 F1789.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
NOTE 1—This specification is the metric companion to the inch pound Specification A325.
1.7 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.
2. Referenced Documents
3
2.1 ASTM Standards:
A153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A490M Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural Steel Joints (Metric)
A563M Specification for Carbon and Alloy Steel Nuts (Metric)
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D3951 Practice for Commercial Packaging
F436M Specification for Hardened Steel Washers (Metric)
F606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and
Rivets (Metric)
1
This specification is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Nuts, Rivets
and Washers.
Current edition approved Jan. 1, 2009Feb. 15, 2013. Published January 2009March 2013. Originally approved in 1979. Last previous edition approved in 20082009 as
A325M – 08A325M – 09 . DOI: 10.1520/A0325M-09.10.1520/A0325M-13.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-325M in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A325M − 13
F788/F788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
F959M Specification for Compressible-Washer-Type Direct Tension Indicators for Use With Structural Fasteners (Metric)
4
F1136M Specification for Zinc/Aluminum Corrosion Protective Coatings for Fasteners (Metric) (Withdrawn 2011)
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F1789 Terminology for F16 Mechanical Fasteners
G101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels
5
2.2 ASME Standards:
B
...
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