The precise ratios of copper and columbium are critical; they form the microscopic precipitates during aging that block dislocation movement and harden the crystalline matrix. 6. Primary Industrial Applications
| ASTM A564 Type | UNS | DIN/EN | AISI | AMS | JIS | |---|---|---|---|---|---| | 630 | S17400 | 1.4542 / X5CrNiCuNb16‑4 | 630 | 5643 | SUS630 | | 631 | S17700 | 1.4568 / X7CrNiAl17‑7 | 631 | 5644 | SUS631 |
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In the world of metallurgy and engineering, selecting the right material is paramount. For applications demanding high strength, excellent corrosion resistance, and reliable performance at elevated temperatures, age-hardening stainless steels are often the material of choice. At the heart of ensuring quality and consistency for these materials lies a crucial document: .
The official, most up-to-date version of ASTM A564/A564M can be purchased and downloaded directly from the ASTM standard store. The precise ratios of copper and columbium are
Components requiring both corrosion resistance and high wear resistance. 5. Finding the Official ASTM A564 PDF
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Landing gear components, engine parts, and structural fasteners.
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Understanding the ASTM A564 specification is essential for engineers designing high-performance machinery. By utilizing the proper heat-treatment conditions specified in the standard, manufacturers can achieve the necessary balance of high strength, toughness, and corrosion resistance for their specific application.
, which are valued for their high strength and corrosion resistance. ASTM International Draft Summary: ASTM A564/A564M 1. Scope & Materials