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.
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.
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
| Properties | FLEXOR® | FLEXOR 'M'® | FLEXOR 'OW'® | FLEXOR 'MX'® | FLEXOR Annealed® |
|---|---|---|---|---|---|
| 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.
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:
Testimonials
"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."