ASTM A668/A668M is the ASTM standard for Steel Forgings, Carbon and Alloy, for General Industrial Use. It provides a technical basis for specifying forged steel products intended for general industrial applications, helping buyers and manufacturers align on material expectations and product requirements. As an ASTM standard, it supports clearer procurement, more consistent quality control, and better communication between parties involved in forging production and evaluation.

ASTM A668/A668M standard overview

The ASTM A668/A668M standard overview centers on a specification for carbon and alloy steel forgings used in general industrial service. It is designed to define requirements that help establish acceptable forged material for a wide range of engineering needs. Because the document covers forgings rather than finished assemblies, it is most useful when selecting or ordering forged components that must meet agreed technical criteria. ASTM A668/A668M helps provide a common reference for product conformity and supplier expectations.

Where is ASTM A668/A668M used?

This specification is commonly used when carbon or alloy steel forgings are being sourced for general industrial purposes. It may apply in procurement, fabrication, inspection, and quality review workflows where forged parts need to be identified against a recognized ASTM specification. ASTM A668/A668M is relevant wherever forged steel products are selected based on material and manufacturing requirements rather than on a complete end-use design standard. It is especially useful for standardizing ordering and acceptance language.

Practical importance of ASTM A668/A668M

ASTM A668/A668M matters because it helps reduce ambiguity in the purchase and review of steel forgings. Using a recognized specification supports more consistent product evaluation, clearer compliance checks, and better coordination between mills, forgers, and customers. For general industrial use, that consistency can help limit supply risk and improve confidence that forgings are produced to an agreed standard. It is a practical tool for quality control and technical documentation.

• Carbon and alloy steel forgings
• General industrial use
• Specification-based procurement
• Quality and compliance reference
• Forged material evaluation