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Quality & Certifications

FLEXOR® is a proprietary steel, and as such, Pennsylvania Steel Corporation has set its own stringent quality standards. These standards generally far surpass those set by ASTM and other countries. Having such stringent quality requirements gives FLEXOR® a leg up on consistency and mechanical properties compared to other common low alloy grades. Most will find that even after hundreds of heats through the years there is very little deviation. Making FLEXOR® preferred by our vendors and customers.

FLEXOR® has been refined over decades to produce a perfect compromise between strength and toughness.

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FLEXOR quality & certifications

Comparing FLEXOR® to Other Steel Alloys

FLEXOR® is a unique steel which is neither a standard alloy steel nor a standard tool steel, though it is often mistaken for both. FLEXOR®'S unique chemistry allows it to be used in thousands of applications often as a superior alternative to other alloy or tool steels.

Click on a steel alloy to learn more about how FLEXOR® is the superior alternative:

More on Alloy Steel Comparison


"At Powerhold we use FLEXOR® exclusively on all our special design work-holding Diaphragms. The performance and machining quality of FLEXOR® is superior to anything we have utilized in the past.

Today’s customer demands a quality product that performs consistently...FLEXOR® enables us to meet that goal every day."

Stephen W. Brown, Purchasing Manager

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The FLEXOR® Advantage

Higher core


Dual properties
when case hardened

properties available

Questions? Ask Our FLEXOR® Experts

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