This specification establishes of the requirements for pre-patinated (artificially aged) copper sheets and strips in ounce-weight thicknesses supplied in flat lengths for roofing, flashing, and other architectural applications. Materials made to this specification are not intended to be used for electrical applications. The pre-patinated surface shall not be the result of coating applications such as painting, but rather the result of chemical treatment that artificially ages the base metal to form green- to turquoise-colored protective layer. Products shall be produced in tempers H00 (eighth hard, cold-rolled), H01 (quarter hard, cold-rolled high yield), and H02 (half hard). Products shall be tested to examine their conformance to dimensional (mass, thickness, weight, width, length, and straightness), mechanical (tensile and yield strengths, and Rockwell hardness), and chemical composition requirements. Products shall also undergo color fade resistance and resistance to flaking tests.

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.

1. Scope

1.1 This specification covers the establishment of the requirements for pre-patinated (artificially aged) copper sheet and strip in ounce-weight thicknesses supplied in flat lengths for roofing, flashing, and other architectural applications.

1.2 The pre-patinated surface is the result of chemical reaction with the copper and shall be applied on one side of the product.

1.2.1 The pre-patinated surface formed is comparable in color and ability to be bent or formed to the surface formed in naturally occurring patinated copper.

1.3 The pre-patinated surface is not the result of coating applications such as painting.

1.4 Materials made to this specification are not intended to be used for electrical applications.

1.5 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.

Note 1—A companion specification for copper sheet and strip for building construction is Specification B370.

1.6 The following precautionary statement pertains only to the test method portion, Section 12, 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

B248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar

B370 Specification for Copper Sheet and Strip for Building Construction

B571 Practice for Qualitative Adhesion Testing of Metallic Coatings

B601 Classification for Temper Designations for Copper and Copper Alloys--Wrought and Cast

B846 Terminology for Copper and Copper Alloys

E8 Test Methods for Tension Testing of Metallic Materials

E478 Test Methods for Chemical Analysis of Copper Alloys

G23 Practice for Operating Light-Exposure Apparatus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials

Keywords

architectural copper; building construction; flashing; pre-patinated copper; roofing copper; Roofing copper; Architectural copper; Building materials/applications--specifications; Copper; Flashing; Pre-patinated copper sheet/strip;

ICS Code

ICS Number Code 77.150.30 (Copper products); 91.100.99 (Other construction materials)

Citing ASTM Standards

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