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University engineering departments frequently provide free reading access to active ASTM libraries for students and researchers.
The specification covers several distinct types of precipitation-hardening (PH) stainless steels, categorized by their crystalline structures: 1. Martensitic Precipitation-Hardening Alloys
High-pressure valve stems, pump shafts, mixer shafts, and offshore oil platform components where sulfide stress cracking must be avoided.
Understanding cross‑referencing is essential for global procurement. Here is how ASTM A564 grades align with other international standards: astm a564 pdf
If you work in aerospace, defense, oil & gas, or high-stress fasteners, you have likely typed into a search engine at least once. You need the standard—fast. But beyond just downloading the document, understanding what makes this specification critical can save your project from catastrophic failure.
This standard is crucial because it defines the required properties and manufacturing processes for stainless steel bars used in applications like aerospace components, valve parts, pump shafts, and marine hardware. The standard covers a wide range of product forms, including rounds, squares, hexagons, angles, tees, and channels, which can be produced by methods such as hot rolling, extruding, or forging. Billets or bars intended for reforging can also be purchased to this specification.
To ensure your engineering or manufacturing data is accurate, you should never rely on third-party PDFs found via general web searches, as they may be outdated (e.g., a 2013 version vs. the current 2024 version). But beyond just downloading the document, understanding what
The "story" of A564 is the story of how metallurgists solved a century-old problem: Stainless steel (like 304 or 316) is corrosion-resistant but often too soft for heavy load-bearing applications. High-strength steels are hard but rust easily. ASTM A564 covers the alloys that bridge this gap. They are corrosion-resistant like stainless steel but strong enough to be used in landing gear and nuclear reactors.
| Standard | Title | Relationship to A564 | |---|---|---| | | General Requirements for Stainless Steel Bars, Billets, and Forgings | Sets general dimensional, tolerance, and finish requirements | | A705/A705M | Age‑Hardening Stainless Steel Forgings | Companion specification for forged products | | A314 | Stainless Steel Billets and Bars for Forging | Governs billets intended for reforging | | A370 | Mechanical Testing of Steel Products | Defines tension and hardness test procedures | | A751 | Chemical Analysis of Steel Products | Defines chemical composition verification methods |
ASTM A564 PDF: Comprehensive Guide to Age-Hardening Stainless Steel Bars and Forgings | Sets general dimensional
For the absolute latest version (e.g., A564/A564M-19), it is recommended to purchase directly from the ASTM International official site for specific heat-treat conditions like astm-a564.pdf
Pump shafts, valve stems, aerospace components, and chemical processing equipment. Grade 631 (17-7 PH)
ASTM A564 (Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes) covers a specific class of stainless steel alloys. These metals undergo a specialized heat treatment known as precipitation hardening (or age hardening) to achieve superior mechanical properties.