The ASTM A484 / A484M standard regulates basic quality and manufacturing process requirements for a wide range of stainless steel semi-finished products. The document is officially recognized by the U.S. Department of Defense and is fundamental to the metallurgical industry.
Scope of the ASTM A484 / A484M Standard
This specification defines general technical requirements for the production of bars, shapes, forgings, and billets made of wrought stainless steel. The provisions of the document apply to products manufactured according to the standards ASTM A276, A314, A458, A473, A477, A479 / A479M, A564 / A564M, A565 / A565M, A582 / A582M, A638 / A638M, A705 / A705M, and A831 / A831M.
EV Group China experts emphasize: in the event of a conflict between the general specification and the specific standard for a particular product type, the specific standard takes precedence. If the requirements of a purchase order are more stringent than the provisions of ASTM A484, the order requirements shall be met, provided they do not violate basic material safety and quality standards.
The main provisions for including new steel grades in the specification are outlined in Annex A1. For flat stainless steel products, the ASTM A480 / A480M standard should be followed, and for wire in coils, the ASTM A555 / A555M standard applies.
The unit systems (SI and inch-pound) in the standard are autonomous. Mixing values from different systems is not permitted to prevent errors during calculations and production. By default, products are supplied in inch-pound units unless the “M” designation (metric system) is explicitly stated in the purchase specification.