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This specification covers metallic-coated, painted metallic-coated, and painted nonmetallic-coated steel sheet used in the manufacture of cold-formed framing members, such as, but not limited to, studs, joists, purlins, girts, and track. The steel sheet is available in the following designations: Structural Grade 50 Type H (ST50H), Structural Grade 340 Type H [ST340H], Structural Grade 40 Type H (ST40H), Structural Grade 275 Type H [ST275H], Structural Grade 37 Type H (ST37H), Structural Grade 255 Type H [ST255H], Structural Grade 33 Type H (ST33H), Structural Grade 230 Type H [ST230H], Structural Grade 50 Type L (ST50L), Structural Grade 340 Type L [ST340L], Structural Grade 40 Type L (ST40L), Structural Grade 275 Type L [ST275L], Structural Grade 37 Type L (ST37L), Structural Grade 255 Type L [ST255L], Structural Grade 33 Type L (ST33L), Structural Grade 230 Type L [ST230L], Nonstructural Grade 33 (NS33), and Nonstructural Grade 230 [NS230]. The ordered thickness shall be the base metal thickness. The base metal shall conform to the chemical composition requirements prescribed for carbon, manganese, phosphorus, sulfur, copper, nickel, chromium, molybdenum, vanadium, columbium, and titanium, as determined by heat and product analyses. Mechanical and corrosion tests shall be performed as prescribed. The base metal shall also conform to the mechanical property requirements including yield strength, tensile strength, and elongation. Coating requirements such as coating weight [mass], corrosion standard, thickness, flexibility and adhesion, are specified.
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.
Significance and Use
1.1 This specification covers coated steel sheet used in the manufacture of cold-formed framing members, such as, but not limited to, studs, joists, purlins, girts, and track.
1.2 The steel sheet used for cold-formed framing members includes metallic-coated, painted metallic-coated, or painted nonmetallic-coated.
1.3 The values stated in either inch-pound or SI units shall be regarded separately as standard. Within the text, SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other.
1.4 Unless the order specifies the “M” designation [SI units], the product shall be furnished to inch-pound units.
1.5 The text of this specification references notes and footnotes, which provide explanatory material. These notes and footnotes, excluding those in tables and figures, shall not be considered as requirements of this 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.
A463/A463M Specification for Steel Sheet, Aluminum-Coated, by the Hot-Dip Process
A568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements for
A653/A653M Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process
A755/A755M Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process and Prepainted by the Coil-Coating Process for Exterior Exposed Building Products
A792/A792M Specification for Steel Sheet, 55 % Aluminum-Zinc Alloy-Coated by the Hot-Dip Process
A875/A875M Specification for Steel Sheet, Zinc-5 % Aluminum Alloy-Coated by the Hot-Dip Process
A879/A879M Specification for Steel Sheet, Zinc Coated by the Electrolytic Process for Applications Requiring Designation of the Coating Mass on Each Surface
A902 Terminology Relating to Metallic Coated Steel Products
A924/A924M Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
A1004/A1004M Practice for Establishing Conformance to the Minimum Expected Corrosion Characteristics of Metallic, Painted-Metallic, and Nonmetallic-Coated Steel Sheet Intended for Use as Cold Formed Framing Members
A1046/A1046M Specification for Steel Sheet, Zinc-Aluminum-Magnesium Alloy-Coated by the Hot-Dip Process
A1063/A1063M Specification for Steel Sheet, Twin-Roll Cast, Zinc-Coated (Galvanized) by the Hot-Dip Process
D714 Test Method for Evaluating Degree of Blistering of Paints
D1005 Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers
D1654 Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments
D4138 Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means
D4145 Test Method for Coating Flexibility of Prepainted Sheet
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ISO StandardISO9223 Corrosion of Metals and Alloys--Corrosivity of Atmospheres-Classification Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
ICS Number Code 77.140.50 (Flat steel products and semi-products)
UNSPSC Code 30264000(Carbon steel sheets)