Steel Plate Supplier
Our steel plates are known for their versatility, incredible strength, and durability. They're available in various grades and sizes so that our team can cater to the specific applications our customers need. Whether you require different levels of strength, corrosion resistance, or weldability, Pennsylvania Steel is here to provide you with the highest quality steel plate products.
FLEXOR® Steel Plates - Our Superior Steel Product
We proudly offer our customers FLEXOR® steel plate products. This brand carries unique and versatile steel that showcases truly exceptional features. Due to its chemistry and composition, FLEXOR® steel plates feature several must-have physical properties, including higher core hardness and better machine customization (especially at higher hardnesses). FLEXOR® is great for applications that call for high strength, wear resistance, and superior machinability.
Composition and Properties of FLEXOR® Alloy Steel
FLEXOR® includes high levels of carbon and molybdenum, with tightly controlled sulfur and phosphorus content to improve overall material cleanliness and consistency.
This proprietary blend results in superior hardenability, uniform hardness across larger cross-sections, and a reduced risk of distortion during heat treatment. FLEXOR®'s consistent microstructure ensures fewer weak points and provides outstanding fatigue resistance for critical applications.
Composition | FLEXOR® |
---|---|
Carbon, C | .32-.36 |
Manganese, Mn |
.60-.80 |
Phosphorous, P |
.025(max) |
Sulfur, S |
.025(max) |
Silicon, Si |
.15-.30 |
Chromium, Cr |
.75-1.00 |
Molybdenum, Mo |
.40-.60 |
Tungsten, W |
.40-.70 |

Custom Sizes and Materials
Pennsylvania Steel provides a wide range of custom steel plate sizes to suit your needs. Here are key specifications:
- Thickness: Starting at just above ½ inch
- Width: Up to 36 inches
- Length: Up to 36 inches
- Tolerance: Between +1/8 inch to +1/4 inch
Our FLEXOR® steel is engineered to meet or exceed the standards of several other steel products, including 4130, 4140, 4340, and 8620. These specifications ensure a high level of versatility for various applications.
Industrial Applications
Our steel plate products serve customers in an array of industries, including:
- Aerospace
- Automotive
- Construction
- Defense
- Energy and Utilities
- Mining
- Agriculture
For example, FLEXOR® plates can be used to build vehicle bodies, various aircraft components, pressure vessels, storage tanks, machinery, and much more.

Exceptional Qualities of FLEXOR® Steel Plates
Our steel plates are well-known for their suitability in heavy-duty applications, high strength-to-weight ratios, shock resistance, and long-lasting stability. FLEXOR® and its unparalleled wear resistance make it a superior product when compared to traditional carburizing steel grades.
Choose Pennsylvania Steel
With over 75 years of expertise, Pennsylvania Steel offers customized heat treatments to meet your specific mechanical requirements. Our team works to ensure that each product we offer provides optimal performance when used in your projects. Choose our steel plates for reliable, high-quality materials designed to withstand the toughest conditions.
Pennsylvania Steel's commitment to quality and innovation makes us the go-to source for steel plates. Contact us today to learn more about our FLEXOR® steel plates and request a quote for your upcoming project!