When you open your , you will find detailed tables. Here is a preview of the data you need to look for regarding Grade 630 Condition H900 (the most common specification):
To comply with ASTM A564, the material must meet strict chemical compositions and mechanical property benchmarks. Chromium (%) Nickel (%) Copper (%) Yield Strength (min) 15.0 – 17.5 3.0 – 5.0 3.0 – 5.0 145 ksi (H900) XM-12 (15-5) 14.0 – 15.5 3.5 – 5.5 2.5 – 4.5 145 ksi (H900) astm a564 pdf
You can obtain the official, watermark-free PDF directly from: When you open your , you will find detailed tables
The PDF details the "aging" process. Unlike standard steels that are hardened by quenching (rapid cooling), A564 steels are hardened by holding them at moderate temperatures (900°F to 1150°F) for an hour. This causes microscopic particles to "precipitate" out of the metal matrix, locking the structure in place and dramatically increasing strength. The PDF provides the precise temperatures and times required to achieve conditions like H900 (highest strength) or H1150 (more ductile). Unlike standard steels that are hardened by quenching
ASTM A564/A564M is a standard specification issued by ASTM International. It covers various forms of stainless steel, primarily bars and shapes, that are "age-hardening." Unlike standard 300-series stainless steels (which are hardened by cold working) or 400-series (hardened by quenching), A564 alloys use a specialized heat-treatment process called . Key Characteristics:
The definitive, legally binding PDF is available for purchase on the ASTM International website .