This standard acts as an "umbrella" specification, covering the following foundational areas:

A480 requires the mill to report the heat (ladle) analysis. However, the standard also allows for product analysis (check analysis) by the buyer. If your lab finds an element out of spec, A480 tells you how to proceed.

: This includes plates (3/16" and thicker), sheets (under 3/16" thick and over 24" wide), and strips (under 3/16" thick and under 24" wide).

: The "A480" designation refers to inch-pound units, while "A480M" refers to SI (metric) units. Key Specifications & Requirements A480/A480M Standard Specification for General ... - ASTM

A vague but powerful clause. It states the material shall be "uniform in quality and condition, free from defects that would adversely affect fabrication." Having the A480 PDF allows you to quote the specific language to reject material with laminations or edge cracks.

ASTM A480/A480M is the Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip . The dual designation (A480 and A480M) indicates that the standard includes both inch-pound units (A480) and SI metric units (A480M).

While material-specific standards like ASTM A240 define the exact chemical composition and mechanical properties of a grade, A480 provides the uniform rules for how those materials are measured, finished, and delivered. Core Content of ASTM A480 The standard covers several critical technical areas:

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