❌ Assuming "A564" guarantees magnetic permeability is low. (Hint: 17-4 is magnetic in H900).
If you are specifying Type 630 (17-4 PH) for shafts, gears, or aerospace fittings, you need —not just a mill cert. astm a564 pdf
You order "17-4 Stainless." The mill sends "Condition A" (annealed). You try to machine it, and it’s gummy. 🥴 Because you forgot to specify the heat treat condition. ❌ Assuming "A564" guarantees magnetic permeability is low
I’ve seen too many buyers just ask for "Condition H900" without verifying the mechanical limits. Here is why the is your best friend for the next RFQ: You order "17-4 Stainless
👉 I’ve extracted the specific Table 3 (Mechanical Properties) from the latest ASTM A564 revision. [Link to your PDF or comment "SEND" for a copy]
Are you still using H900 for marine environments, or have you switched to H1150M? Option 2: Instagram / Threads / Carousel Script (Visual & Punchy) Slide 1 (Cover): Title: ASTM A564 Explained in 60 Seconds Subtitle: The bible for 17-4 PH bar stock.