Astm A564 Pdf -
Aged at 1150°F. This results in lower strength but significantly higher ductility and resistance to stress corrosion cracking. Technical Specifications & Mechanical Properties
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.
The most recognizable grades within the ASTM A564 specification are the "17-4 PH" and "15-5 PH" varieties. 1. Type 630 (17-4 PH)
is the standard specification for hot-rolled and cold-finished age-hardening stainless steel bars and shapes . In plain English: It covers stainless steel that gets stronger after heat treatment. astm a564 pdf
They offer corrosion resistance comparable to 304 stainless steel in most environments. Dimensional Stability:
| Condition | Tensile Strength, min (ksi) | Yield Strength, min (ksi) | Hardness, Brinell | | :--- | :--- | :--- | :--- | | H 900 | 190 | 170 | 388 min | | H 1025 | 155 | 145 | 311 min | | H 1150 | 135 | 105 | 255 min |
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One of the most valuable features of Type 630 is the ability to tailor its mechanical properties by selecting the appropriate aging condition. The table below shows specified properties for common conditions:
While the fundamental scope and material requirements remain consistent, each revision typically includes:
This article provides a deep dive into the specifications, grades, and applications covered by ASTM A564 to help you understand why this standard is critical for modern manufacturing. What is ASTM A564? Aged at 1150°F
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Can be heat-treated to various "H" conditions (e.g., H900, H1025) to achieve specific hardness and strength levels. For example, condition typically yields a Rockwell C hardness of 35–43. Zhengzhou Huitong Pipe Fittings Co.,Ltd. Resources and PDF Links