ASTM C645-18
(Specification)Standard Specification for Nonstructural Steel Framing Members
Standard Specification for Nonstructural Steel Framing Members
ABSTRACT
This specification covers nonstructural steel framing members in interior construction assemblies. Members shall be manufactured from steel and shall have a protective coating. Studs and rigid furring channels shall have a configuration and steel thickness such that the system in which they are used will carry the design transverse loads without exceeding either the allowable stress of the steel or the allowable design deflection. Members shall be manufactured in such a fashion as to minimize burrs and sharp edges. Penetration test shall be done for performance requirements, where members shall be capable of pulling the head of the screw below the surface of the gypsum board without spin out. Apparatus and materials shall satisfy the testing requirements of the specification.
SCOPE
1.1 This specification covers nonstructural steel framing members in interior construction assemblies.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 The following safety hazards caveat pertains only to the test methods portion, Sections 9 and 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:C645 −18
Standard Specification for
1
Nonstructural Steel Framing Members
This standard is issued under the fixed designation C645; 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. Scope* bers to Receive Screw-Attached Gypsum Panel Products
C1002 Specification for Steel Self-Piercing Tapping Screws
1.1 This specification covers nonstructural steel framing
for Application of Gypsum Panel Products or Metal
members in interior construction assemblies.
Plaster Bases to Wood Studs or Steel Studs
1.2 The values stated in inch-pound units are to be regarded
C1396/C1396M Specification for Gypsum Board
as standard. The values given in parentheses are mathematical
3
2.2 AISI Standards:
conversions to SI units that are provided for information only
S100 North American Specification for the Design of Cold-
and are not considered standard.
Formed Steel Structural Members, 2007 edition
1.3 The following safety hazards caveat pertains only to the
S220 North American Standard for Cold-Formed Steel
test methods portion, Sections 9 and 10, of this specification:
Framing—Nonstructural Members, 2015 Edition
This standard does not purport to address all of the safety
4
2.3 ICC-ES Document
concerns, if any, associated with its use. It is the responsibility
ICC-ES-AC86 Acceptance Criteria for Cold-formed Steel
of the user of this standard to establish appropriate safety,
Framing Members—Interior Nonload-bearing Wall
health, and environmental practices and determine the appli-
Assemblies—Approved May 2012
cability of regulatory limitations prior to use.
1.4 This international standard was developed in accor-
3. Terminology
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3.1 Definitions—Definitions shall be in accordance with
Development of International Standards, Guides and Recom-
Terminology C11.
mendations issued by the World Trade Organization Technical
3.2 Definitions of Terms Specific to This Standard:
Barriers to Trade (TBT) Committee.
3.2.1 members, n—in screw application of gypsum board,
studs, runners (track), hat furring channels, main beams, and
2. Referenced Documents
cross furring members of grid suspension systems or other
2
items manufactured in accordance with this specification.
2.1 ASTM Standards:
A1003/A1003M Specification for Steel Sheet, Carbon,
3.2.2 nonstructural wall stud, n—a member in a steel
Metallic- and Nonmetallic-Coated for Cold-Formed
framed wall system which is limited to a lateral (transverse)
2
Framing Members
load of not more than 10 lb/ft (480 Pa), a superimposed
C11 Terminology Relating to Gypsum and Related Building
verticalload,exclusiveofsheathingmaterials,ofnotmorethan
Materials and Systems
100 lbf/ft (1460 N/m), or a superimposed vertical load of not
C475/C475M Specification for Joint Compound and Joint
more than 200 lbs (890 N).
Tape for Finishing Gypsum Board
C754 Specification for Installation of Steel Framing Mem-
4. Materials and Manufacture
4.1 Members shall be manufactured from steel meeting the
requirements of Specification A1003/A1003M.
1
This specification is under the jurisdiction of ASTM Committee C11 on
Gypsum and Related Building Materials and Systems and is the direct responsibility
4.2 Members shall have a protective coating in accordance
of Subcommittee C11.02 on Specifications and Test Methods for Accessories and
with AISI S220, Section A5.
Related Products.
Current edition approved June 1, 2018. Published June 2018. Originally
ɛ1
approved in 1970. Last previous edition approved in 2014 as C645 – 14 . DOI:
10.1520/C0645-18.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from American Iron and Steel Institute (AISI), 1140 Connecticut
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Ave., NW, Suite 705, Washington, DC 20036, http://www.steel.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available from ICC Evaluation Services, Inc., 5360 Workman Mill Road,
the ASTM website. Whittier, CA 90601, www.icc-es.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
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C645−18
...
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.
´1
Designation: C645 − 14 C645 − 18
Standard Specification for
1
Nonstructural Steel Framing Members
This standard is issued under the fixed designation C645; 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—Fig. 2 was revised editorially to remove an unnecessary asterisk in Dec. 2015.
1. Scope*
1.1 This specification covers nonstructural steel framing members in interior construction assemblies.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.3 The following safety hazards caveat pertains only to the test methods portion, Sections 9 and 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 safety, health, and healthenvironmental practices and determine the applicability
of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
A653/A653M Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the
Hot-Dip Process
A1003/A1003M Specification for Steel Sheet, Carbon, Metallic- and Nonmetallic-Coated for Cold-Formed Framing Members
C11 Terminology Relating to Gypsum and Related Building Materials and Systems
C475/C475M Specification for Joint Compound and Joint Tape for Finishing Gypsum Board
C754 Specification for Installation of Steel Framing Members to Receive Screw-Attached Gypsum Panel Products
C1002 Specification for Steel Self-Piercing Tapping Screws for Application of Gypsum Panel Products or Metal Plaster Bases
to Wood Studs or Steel Studs
C1396/C1396M Specification for Gypsum Board
3
2.2 AISI Standards:
S100 North American Specification for the Design of Cold-Formed Steel Structural Members, 2007 edition
S220 North American Standard for Cold-Formed Steel Framing—Nonstructural Members, 20112015 Edition
4
2.3 ICC-ES Document
ICC-ES-AC86 Acceptance Criteria for Cold-formed Steel Framing Members—Interior Nonload-bearing Wall Assemblies—
Approved May 2012
3. Terminology
3.1 Definitions—Definitions shall be in accordance with Terminology C11.
3.2 Definitions of Terms Specific to This Standard:
1
This specification is under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systems and is the direct responsibility of
Subcommittee C11.02 on Specifications and Test Methods for Accessories and Related Products.
Current edition approved Nov. 1, 2014June 1, 2018. Published November 2014June 2018. Originally approved in 1970. Last previous edition approved in 20132014 as
ɛ1
C645 – 13.C645 – 14 . DOI: 10.1520/C0645-14E01.10.1520/C0645-18.
2
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.
3
Available from American Iron and Steel Institute (AISI), 1140 Connecticut Ave., NW, Suite 705, Washington, DC 20036, http://www.steel.org.
4
Available from ICC Evaluation Services, Inc., 5360 Workman Mill Road, Whittier, CA 90601, www.icc-es.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 ----------------------
C645 − 18
3.2.1 members, n—in screw application of gypsum board, studs, runners (track), hat furring channels, main beams, and cross
furring members of grid suspension systems or other items manufactured in accordance with this specification.
3.2.2 nonstructural wall stud, n—a member in a steel framed wall system which is limited to a lateral (transve
...
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