17-4 PH Precipitation Hardening Stainless Square Stock
17-4 PH (17-4-4) martensitic precipitation hardening stainless steel square semi-finished stock with <232 cm² area for aerospace components. Under HTS 7218.99.0015 as square cross-section stainless semi-finished product. Heat treatable for high strength.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If rectangular rather than square
Rectangular cross-section stainless semi-finished uses 7218.91 subheadings, distinct from square
If tool steel composition per note (e)
Certain high-alloy tool steels, even stainless, classify under 7222.30 per Chapter 72 note definitions
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Import Tips & Compliance
• Provide precipitation hardening certification and condition (H900/H1150); ensure no 'further worked' surface treatments; calculate area from caliper measurements at multiple points
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