Astm A564 Pdf
The most common grade under this specification. It contains approximately 17% chromium and 4% nickel, copper-strengthened. It offers high strength and excellent corrosion resistance up to 600°F (316°C).
This chromium-nickel-aluminum alloy is semi-austenitic. It provides exceptional fatigue resistance and high strength, making it the preferred choice for heavy-duty springs, aerospace components, and intricate surgical tools. Grade 670 (XM-12 / 15-5PH)
Aged at 900°F (482°C) for 1 hour, air cool. This provides the highest tensile strength and hardness, but the lowest impact toughness.
ASTM A564 enforces strict chemistry envelopes to ensure uniform heat treatment response and predictable corrosion resistance. Below is a representative chemical breakdown for the baseline Grade 630 (17-4PH): 15.00 – 17.50% Nickel (Ni): 3.00 – 5.00% Copper (Cu): 3.00 – 5.00% Columbium + Tantalum (Nb + Ta): 0.15 – 0.45% Manganese (Mn): 1.00% max Silicon (Si): 1.00% max Carbon (C): 0.07% max Phosphorus (P): 0.040% max Sulfur (S): 0.030% max astm a564 pdf
A martensitic age-hardenable alloy offering yield strengths up to 240 ksi while maintaining good resistance to stress-corrosion cracking.
Note: Higher aging temperatures yield lower tensile strengths but significantly increase the material’s ductility and impact toughness. 5. Industrial Applications of ASTM A564 Steel
What is the primary (e.g., saltwater, high temperature, acids)? The most common grade under this specification
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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. This chromium-nickel-aluminum alloy is semi-austenitic
The standard outlines several specific heat treatment designations. The letter followed by a number indicates the aging temperature in degrees Fahrenheit:
sacrifices ultimate strength to maximize material ductility, toughness, and resistance to stress-corrosion cracking. 4. Mechanical Property Requirements