: Uses the Inch-Pound system (inches, feet, pounds).
A480 is almost always used in conjunction with other standards. If a purchase order specifies "ASTM A240 Grade 304," the thickness and flatness tolerances for that order are automatically governed by ASTM A480 unless otherwise stated. Stainless Steel Plate Thickness Tolerance Chart
It is important to note that ASTM A480 is an . This means it does not dictate specific chemical compositions or mechanical properties for individual steel grades. Instead, it serves as an umbrella document.
This is often the most frequently referenced section of the PDF. The standard dictates the maximum allowable deviations for: astm a480 a480m pdf
: Separate tables exist for hot-rolled and cold-rolled sheets, strips, and plates. Cold-rolled standards have much tighter bounds.
It is important to note that ASTM A480 does not typically stand alone when ordering material. Instead, it serves as a companion or "master" specification to product-specific standards. When a buyer orders stainless steel under specifications like (for pressure vessels and general applications) or ASTM A666 (for austenitic stainless steel sheet/strip), those specific standards directly reference ASTM A480 for details on delivery conditions, dimensional tolerances, and testing protocols. 2. Scope and Covered Material Forms
The standard is the cornerstone specification for the general requirements of flat-rolled stainless and heat-resisting steel products . Rather than focusing on a single specific alloy, it serves as the "umbrella" document that defines the essential manufacturing tolerances, surface finishes, and testing protocols for plates, sheets, and strips used across countless industries. : Uses the Inch-Pound system (inches, feet, pounds)
It provides the allowable tolerances for thickness and width, which are critical for fabrication and manufacturing processes.
As of this writing (2025), the active version is ASTM A480/A480M-24 (or the latest year). Always verify on ASTM International's website.
Standard Specifications and Accessibility: An Analysis of ASTM A480/A480M Stainless Steel Plate Thickness Tolerance Chart It is
In the precision-driven world of metal manufacturing, standardization is crucial. For flat-rolled stainless and heat-resisting steel—comprising sheet, strip, and plate— serves as the definitive, foundational document. Whether you are an engineer, a quality control specialist, or a procurement officer, understanding this specification is essential to ensure material compliance and performance.
Specifications for sheared, slit, or hot-rolled edges.