PFI ADVANCED EQUIPMENT MANUFACTURING, LLC 

DBA, United Ring & Seal
AS9100D/ISO9001:2015

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(610) 856-7550

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(610) 680-3865

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info@pfiaem.com

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Materials


Quality Materials, Quality Products

PFI/United Ring & Seal's dedication to quality starts right at the beginning of our process.  We only use materials certified to aerospace material standards, SAE, ASTM, or other standards you specify.  The following is a partial list of the material used to manufacture seal rings and piston rings.

• Nickel Alloys — X-750, 718, 600, 625, Waspaloy, Hastelloy, Monel Alloys
• Cobalt Alloys — Alloy 6b, Haynes 25(L605), Haynes 31, Stellite Alloys
• Stainless Steel Alloys — 300 Series, 400 Series, 17.4PH, 17.7 PH, Nitronic Alloys
• Carbon and Alloy Steels — Low Carbon to High Carbon, 4130, 4140, 4340, 52100
• Aluminum Bronze Alloys
• Bronze Alloys
• Ni-Resist Alloys
Current Ring Production


A Commitment to Quality

As a supplier to aerospace and military end users, PFI/United Ring & Seal only offers the highest quality products.  We are an AS9100:D/ISO9001:2015 certified company.  You can be confident that we will manufacture to your specifications every time because we want your business again and again.