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This specification covers soft, medium and hard temper zinc-5% aluminum-mischmetal alloy-coated carbon steel wire in coils for general use. The product is intended for applications requiring corrosion resistance, drawability, and formability. The wire is classified with regard to mechanical properties by temper, which is related to tensile strength and stiffness. Zn-5AL-MM alloy coating on the wire is classified in a number of classes: 1, 3 or A, 60, B, 100, and C. The steel from which the wire is produced shall be made by any commercially accepted steelmaking process. The tensile strength of the coated wire shall be determined and the weight and adherence of the coatings shall be measured.
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 soft, medium, and hard temper zinc-5 % aluminum-mischmetal (Zn-5 Al-MM) alloy-coated carbon steel wire in coils for general use. The product is intended for applications requiring corrosion resistance, drawability, and formability.
1.2 This specification is applicable to orders in either inch-pound units (as A 856) or acceptable SI units [as A 856M]. Inch-pound units and SI units are not necessarily equivalent; therefore, each system shall be used independently of the other, without combining values in any way.
1.3 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.
A90/A90M Test Method for Weight [Mass] of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A902 Terminology Relating to Metallic Coated Steel Products
B117 Practice for Operating Salt Spray (Fog) Apparatus
B750 Specification for GALFAN (Zinc-5 % Aluminum-Mischmetal) Alloy in Ingot Form for Hot-Dip Coatings
E8 Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E1277 Test Method for Chemical Analysis of Zinc-5 % Aluminum-Mischmetal Alloys by ICP Emission Spectrometry
Military StandardsMIL-STD-163 Steel Mill Products Preparation
Federal StandardsFedStd.No.123 Marking for Shipment (Civil Agencies)
Other StandardsGF-1 Standard Practice for Determination of Cerium and Lanthanum Compositions in Galfan Alloy (5-Al-0.04 % La-0.04 % Ce-Ba1 SHG Zn)
ICS Number Code 77.140.65 (Steel wire, wir ropes and link chains)
UNSPSC Code 31152206(Coated steel wire)