EMC Blog

The high fracture toughness of Grade 630 (17-4 PH) makes it perfect for actuator arms and landing gear components that must withstand sudden shock loads without cracking.

Searching for "ASTM A564 PDF" usually indicates one of three needs:

A physical book is cumbersome, but a searchable PDF allows you to instantly find keywords like "Condition H900" or "Tensile Strength."

Many universities with strong engineering programs have a "Standards Library" through the library portal. If you are a student or faculty member, check your login credentials.

Once you open the official ASTM A564 PDF, do not skim. Lock in on these sections:

As of 2024, the active revision is ASTM A564/A564M-19 (Metric version). If you have a PDF from 2013, the H1150 heat treat condition changed by ±25°F. Using the wrong PDF could void your PPAP or NORSOK compliance.

Always verify the revision date on the first page of the PDF.