Your browser is out of date.

You are currently using Internet Explorer 7/8/9, which is not supported by our site. For the best experience, please use one of the latest browsers.

Quenched & Tempered Steel Flat Bars

FLEXOR® has several alternatives in the pre-hardened quenched and tempered condition. Four of our most common ranges are designated as:

  • FLEXOR Q&T (28-32 HRC)
  • FLEXOR M (38-42)
  • FLEXOR OW (43-46 HRC)
  • FLEXOR MX (47-49 HRC)

Off the quench FLEXOR will typically fall in the low to mid 50's HRC.

Request a Quote Ask Our Experts

FLEXOR® Specifications

  • Our Hot Rolled Flats (Quenched and Tempered) are supplied in maximum 6 ft lengths.
  • Bars are supplied in the ASTM straightness standard of 1/8" per 5 ft.
  • FLEXOR® flats can also be supplied in the De-Carb Free condition upon request including rough milled and Blanchard ground.
Request a Quote

Hardness Requirements

Far too often applications require more than a surface hardness. For over 30 years Pennsylvania Steel has been providing pre-hardened FLEXOR® blanks requiring a variety of mechanical properties. Pennsylvania Steel can provide a rough machined and heat treated certified blank guaranteed to reach maximum mechanical properties for each specific part. The letter designation following FLEXOR® is our way of coding for a prescribed target of mechanical properties without settling for just a surface hardness. For post-machining hardening just ask for FLEXOR®.

FLEXOR® Properties Chart

HRC 28-32 38-42 42-46 46-49 8-20
Brinnell Hardness 275-305 352-390 390-430 429-477 N/A
Tensile Strength (ksi) 147 183 220 245 N/A
Yield Strength (ksi) 134 171 201 213 N/A
Charpy Impact V-Notch (ft/lbf) 80 45 23 12 N/A

It is often necessary to provide a decarb free surface or rough silhouette prior to hardening to facilitate maximimum properties. Allow our experts to assist in providing the optimal prehardened blank to meet your needs.

Note: Mechanical properties are representative of samples while actual results may vary depending upon section size, heat treatment, stock size, reduction, etc.

Special hardness range available upon request.

Questions? Ask Our Experts

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

Read More

Questions? Ask Our FLEXOR® Experts

Give us a call or fill out the form below and one of our team members will be in touch as soon as possible.
*marks required fields