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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)

Structural airframe components, landing gear components, fasteners, and turbine blades.

The most common grade. It offers an excellent balance of high strength, hardness, and corrosion resistance comparable to 304 stainless steel.

(e.g., H900, H1150) for these materials. Let me know which of these would help your project! astm-a564.pdf astm a564 pdf

Obtaining the ensures you have the most current, legally defensible version of this critical specification. While free PDF versions exist online, they are typically outdated and unsuitable for professional engineering and regulatory compliance. Invest in the official standard from ASTM International or an authorized reseller—it is an essential reference for any serious engineering or procurement function involving precipitation‑hardening stainless steels.

If you are looking for the official technical documentation, searching for an "" will provide the full, copyrighted document detailing chemical composition, heat treatment protocols, and mechanical testing standards.

Pump shafts, valve components, and aerospace parts. 2. Type 631 (17-7 PH) The most recognizable grades within the ASTM A564

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While the specification covers several types, one name appears more than any other: , better known as 17-4 PH (UNS S17400). The most common grade

You will find dozens of sketchy websites offering “free ASTM A564 PDF downloads.” They often use outdated revisions (e.g., 2013 instead of 2022) or contain OCR errors that can misstate a heat treat temperature by 50°F—enough to scrap a $10,000 part.

13-8 Mo; high-strength martensitic alloy with excellent toughness. S45000