4135 Alloy Steel
Pennsylvania Steel Corporation offers an alternative to SAE 4135 alloy steel.
We produce FLEXOR® steel to provide similar, if not superior, chemical and chemistry properties to 4135 alloy steel. As a result, it can be used for many of the same applications as 4135 steel.
Being a proprietary grade, Pennsylvania Steel ensures that all FLEXOR® heats meet a high quality vacuum degas electric arc furnace melt process in order to ensure cleanliness, grain refinement and maximum reduction ratios.
SAE 4135 Steel Chemistry Composition vs. FLEXOR®
| Alloy | 4135 | FLEXOR® |
|---|---|---|
| Carbon, C | .32-.37 | .32-.36 |
|
Manganese, Mn |
.40-.60 | .60-.80 |
|
Phosphorous, P |
.035(max) | .025(max) |
|
Sulfur, S |
.04(max) | .025(max) |
|
Silicon, Si |
.15-.35 | .15-.30 |
|
Chromium, Cr |
.80-1.10 | .75-1.00 |
|
Molybdenum, Mo |
.15-.25 | .40-.60 |
|
Tungsten, W |
- | .40-.70 |
FLEXOR® Properties
FLEXOR®'s dependable quality and adaptability in heat treatment allows for a wide range of physical properties that are more appealing than those of typical ASTM, AISI or SAE 4135 alloy steel.
FLEXOR® has a higher core hardness, resulting in a more uniform hardness through any cross section. The more uniform hardness and a fine grain microstructure produce a steel that is low weight with high fatigue and tensile strength and is an excellent material for applications that require a lighter weight component with the strength of steel.
FLEXOR® Sizes & Conditions
FLEXOR® steel is available in a variety of sizes and conditions. These include, but are not limited to:
- Decarb free alloys
- Hot rolled flats
- Hot rolled rounds
- Hot rolled plates
- Peeled steel bars
- Turned forged rounds and billet
- Ground and polished rounds
Contact Pennsylvania Steel Corporation today to learn more about FLEXOR® and its advantages over 4135 alloy steel.
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."
Testimonials
"Just wanted to take a minute to say thanks. I always receive my orders on time and without any complications. I appreciate you keeping me so up to date on the order process through email, and the way the steel is cut and packaged so carefully. Using your Product (FLEXOR®) has increased standard tool life by as much as 25%-30%. Thank you again for all you hard work. I look forward to business with you again and again, it's always a pleasure!"
Testimonials
"Pennyslvania Steel Corporation has been a valued supplier for our company going on two decades. FLEXOR®'S versatility and reliability have been extremely helpful to the products we manufacture. Due to to FLEXOR®'S versatility at various hardness' we are able to use it at 28-32 HRC, 28-32 HRC and nitrided, or through hardened anywhere between 42 and 50 HRC. In our experience FLEXOR® has superior machinability to other comparable steel grades especially in higher hardness'. We machine FLEXOR® at 40 HRC and find this to be a key benefit to our manufacturing process."