Astm A564 Pdf — __top__

These properties are achieved through various heat treatment conditions (e.g., H900, H1025, H1150) which the specification references. Depending on the condition, the material can achieve dramatically different mechanical properties.

| 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 is issued as a dual‑unit specification. The standard includes both (inch‑pound units) and A564M (SI metric units) designations. Values in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

Yield strengths can exceed 150,000 psi (1,034 MPa) depending on the grade and heat condition. astm a564 pdf

Due to their unique ability to combine high strength with moderate to high corrosion resistance, ASTM A564 stainless steels are extensively used in: Landing gear parts, structural components. Oil & Gas: Valve stems, pump shafts, blowout preventers.

The Definitive Guide to ASTM A564: Specifications, Grades, and Technical Data

Aged at 1025°F (552°C) for 4 hours, air cool. A balanced condition offering high strength with improved ductility. These properties are achieved through various heat treatment

A semi-austenitic grade that is highly formable in its annealed state. It develops exceptional fatigue resistance after heat treatment, making it ideal for aerospace springs and clips. Grade 15-5 PH UNS Designation: S15500 Composition: 15% Chromium, 5% Nickel, 3.5% Copper.

This means these grades are best suited for small‑diameter bars and wire forms, such as springs, rather than large forgings or heavy structural sections.

A semi-austenitic alloy that offers higher corrosion resistance than Type 630 and maintains high strength at elevated temperatures. The standard includes both (inch‑pound units) and A564M

| UNS Designation | Common Name | Key Characteristics | | :--- | :--- | :--- | | | Type 630 / 17-4PH | Excellent combination of high strength and corrosion resistance; highly versatile | | S46910 | High-temp alloy | Suitable for machining and can be used at higher temperatures up to 840°F (450°C) | | S15500 | Type XM-16 / 15-5PH | Known for good toughness and strength, even in larger sections | | S45000 | Type XM-25 | Machinable in its fully heat-treated condition as received | | S17700 | Type 631 / 17-7PH | Contains significant ferrite; use limited to small diameter bars due to potential low ductility | | S15700 | Type 632 / PH 15-7 Mo | Higher temperature capability (700°F) but contains ferrite; use limited to small diameter bars |

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