ASTM A325M-07

Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength [Metric]

SCOPE
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 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1.3.2 Type 2—Withdrawn in 2003.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 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.

General Information

• Status: Historical
• Publication Date: 30-Nov-2007
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.02 - Steel Bolts, Studs and Nuts

Relations

• Replaces: ASTM A325M-05 - Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength [Metric]
• Effective Date: 01-Dec-2007
• Replaced By: ASTM A325M-08 - Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength [Metric]
• Effective Date: 01-Jun-2008
• Referred By: ASTM F959/F959M-17a - Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners, Inch and Metric Series
• Effective Date: 01-Dec-2007

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A 325M – 07
METRIC
Standard Specification for
Structural Bolts, Steel, Heat Treated 830 MPa Minimum
1
Tensile Strength [Metric]
This standard is issued under the fixed designation A 325M; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
NOTE 1—This specification is the metric companion to the inch pound
1. Scope*
Specification A 325.
2
1.1 This specification covers two types of quenched and
tempered, steel, metric heavy hex structural bolts having a
2. Referenced Documents
minimum tensile strength of 830 MPa (Note 1).
4
2.1 ASTM Standards:
1.2 The bolts are intended for use in structural connections.
A 153/A 153M Specification for Zinc Coating (Hot-Dip) on
These connections are comparable to those covered under the
Iron and Steel Hardware
requirements of the Specification for Structural Joints using
A 490M Specification for High-Strength Steel Bolts,
ASTM A 325 or A 490 bolts, approved by the Research
Classes10.9and10.9.3,forStructuralSteelJoints[Metric]
Council on Structural Connections; endorsed by the American
A 563M Specification for Carbon and Alloy Steel Nuts
Institute of Steel Construction and by the Industrial Fastener
[Metric]
3
Institute.
A 751 Test Methods, Practices, and Terminology for
1.3 The bolts are furnished in sizes M12 to M36 inclusive.
Chemical Analysis of Steel Products
They are designated by type denoting chemical composition as
B 695 Specification for Coatings of Zinc Mechanically
follows:
Deposited on Iron and Steel
1.3.1 Type 1—Medium-carbon, carbon boron, medium car-
D 3951 Practice for Commercial Packaging
bon alloy, or alloy boron steel.
F 436M Specification for Hardened Steel Washers [Metric]
1.3.2 Type 2—Withdrawn in 2003.
F 606M Test Methods for Determining the Mechanical
1.3.3 Type 3—Weathering Steel.
Properties of Externally and InternallyThreaded Fasteners,
1.4 This specification is applicable to metric heavy hex,
Washers, and Rivets [Metric]
structural bolts only.
F 788/F 788M Specification for Surface Discontinuities of
1.5 Terms used in this specification are defined in Termi-
Bolts, Screws, and Studs, Inch and Metric Series
nology F 1789.
F 959M Specification for Compressible-Washer-Type Di-
1.6 The following safety hazard caveat pertains only to the
rect Tension Indicators for Use With Structural Fasteners
test methods portion, Section 10, of this specification. This
[Metric]
standard does not purport to address all of the safety concerns,
F 1470 GuideforFastenerSamplingforSpecifiedMechani-
if any, associated with its use. It is the responsibility of the user
cal Properties and Performance Inspection
of this standard to establish appropriate safety and health
F 1789 Terminology for F16 Mechanical Fasteners
practices and determine the applicability of regulatory limita-
G 101 Guide for Estimating the Atmospheric Corrosion
tions prior to use.
Resistance of Low-Alloy Steels
5
2.2 ASME Standards:
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,
4
Nuts, Rivets and Washers. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Dec. 1, 2007. Published January 2008. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1979. Last previous edition approved in 2005 as A 325M – 05. Standards volume information, refer to the standard’s Document Summary page on
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- the ASTM website.
5
cation SA-325M in Section II of that Code. Available from American Society of Mechanical Engineers (ASME), ASME
3
Available from American Institute of Steel Construction (AISC), One E. International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
Wacker Dr., Suite 700, Chicago, IL 60601-2001, http://www.aisc.org. www.asme.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

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A325M–07
TABLE 1 Chemical Requirements for Type 1 Bolts
B 1.13M Metric Screw Threads
B 18.2.3.7M Metric Heavy Hex Structural Bolts
Carbon Steel
B 18.18.3M Inspection and Quality Assurance for Special Element
Heat Product
Purpose Fasteners
Analysis Analysis
B 18.24 Part Identifying Number (PIN) Code System Stan-
Carbon 0.30–0.52 0.28–0.55
Manganese, min 0.60 0.57
dard for B18 Fast
...

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.
METRIC
DESIGNATION:A325M–07
Designation:A325M–05
Standard Specification for
Structural Bolts, Steel, Heat Treated 830 MPa Minimum
1
Tensile Strength [Metric]
This standard is issued under the fixed designation A 325M; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
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 ASTM A 325 or A 490 bolts, approved by the Research Council on
3
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 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.
2. Referenced Documents
4
2.1 ASTM Standards:
A 153/A 153M Specification for Zinc Coating (Hot Dip) on Iron and Steel Hardware 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 offor 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 withWith 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
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,Rivets and Washers.
Current edition approved Dec. 1, 2005.2007. Published December 2005.January 2008. Originally approved in 1979. Last previous edition approved in 20042005 as
A325M–04b.A 325M – 05.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-325M in Section II of that Code.
3
Available from American Institute of Steel Construction (AISC), One E. Wacker Dr., Suite 3100,700, Chicago, IL 60601-2001, http://www.aisc.org.
4
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. 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

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A325M–07
5
2.2 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
...