The is a crucial specification for industries requiring high-strength, corrosion-resistant components. Often referred to simply as ASTM A564/A564M , this standard defines the requirements for hot-rolled and cold-finished stainless steel bars and shapes that undergo age-hardening (precipitation hardening) to achieve superior mechanical properties.
: AZoM offers a comprehensive article on Grade 630 , including physical properties and common heat treatment conditions like H900 and H1150 .
Understanding ASTM A564: The Standard for High-Strength Age-Hardening Stainless Steel
The (published November 2025), which supersedes all previous revisions. astm a564 pdf
if you are a machine shop, aerospace supplier, or quality lab that regularly certifies 17-4 PH or 15-5 PH material. It is a non-negotiable tool for passing ISO or AS9100 audits.
Age‑hardening (also called precipitation‑hardening) is a heat‑treatment process that produces exceptionally high strength in stainless steels without sacrificing corrosion resistance. The process involves a solution‑annealing step followed by a controlled aging treatment that precipitates fine intermetallic particles, dramatically increasing strength and hardness. This family of materials offers a unique combination of:
ASTM standards are reviewed and revised periodically (indicated by the year suffix, e.g., ASTM A564/A564M-19). You must ensure you are using the precise revision requested by your client's contract. The is a crucial specification for industries requiring
ASTM A564, officially titled Standard Specification for Hot‑Rolled and Cold‑Finished Age‑Hardening Stainless Steel Bars and Shapes , is a globally recognized standard published by (formerly the American Society for Testing and Materials). It governs the manufacture, chemical composition, mechanical properties, heat treatment, and testing of precipitation‑hardening (PH) stainless steel bar products.
: For a more readable "article" style guide rather than just a raw data sheet, Saky Steel's Guide on ASTM A564 Type 630 details key features, technical specs, and industry applications for 17-4 PH round bars.
These steels are chosen for their ability to maintain high strength at room temperature and at elevated temperatures, often up to 600°F [315°C] or higher depending on the specific grade. 4. Applications of ASTM A564 Steel astm a564 pdf
Purchasing the official PDF is the only way to ensure you have the correct, current standard for certification or critical design.
A martensitic precipitation-hardening stainless steel containing 17% Chromium and 4% Nickel, along with copper and niobium.
: Ensuring material ductility.