ASTM A1063/A1063M is the ASTM standard for steel sheet, twin-roll cast, zinc-coated (galvanized) by the hot-dip process. It provides a technical basis for specifying this coated steel sheet and helps buyers, manufacturers, and engineers communicate clear expectations for material supply and quality. By defining the product category and coating method, ASTM A1063/A1063M supports more consistent procurement, evaluation, and compliance for galvanized sheet applications.

What is ASTM A1063/A1063M?

This standard is a specification for steel sheet produced by twin-roll casting and then zinc-coated through the hot-dip galvanizing process. Its purpose is to define the product in a way that supports uniform requirements and practical use in manufacturing and purchasing. The designation includes both inch-pound and metric units, which makes ASTM A1063/A1063M useful in global and mixed-unit supply chains. It serves as a technical reference for identifying the material and its coating approach.

Where is ASTM A1063/A1063M used?

ASTM A1063/A1063M is commonly used wherever twin-roll cast, galvanized steel sheet is specified for further fabrication or supply. It is relevant in sheet metal purchasing, coated steel inventory control, and product qualification workflows that rely on a recognized ASTM standard. Because the standard centers on zinc-coated steel sheet made by the hot-dip process, it is most useful in applications that need corrosion-resistant sheet stock and a clear specification for material selection.

Why is ASTM A1063/A1063M important?

This standard matters because it helps align technical expectations between suppliers and purchasers. ASTM A1063/A1063M supports consistent product identification, which can reduce confusion during procurement, receiving, and quality control. It also provides a reliable reference point for evaluating compliance with the required steel sheet type and coating method. For organizations managing coated sheet materials, using the standard can improve documentation, reduce specification errors, and support more confident product comparison.

• Twin-roll cast steel sheet
• Zinc-coated by hot-dip galvanizing
• Metric and inch-pound designation
• Specification for procurement and quality checks