Steel Fiber Supplier
When concrete and refractory materials face extreme temperatures, high stress, or repeated thermal cycling, standard reinforcement methods often fall short. Steel fibers provide a stronger, more reliable alternative, creating materials that resist cracking, spalling, and deformation even under severe conditions.
At Delta Stud Weld, we supply steel fibers engineered for superior performance and consistency. As a U.S.-based steel fiber distributor, we’re known for quick turnarounds, domestic sourcing, and exceptional quality control. Our fibers are used across demanding industries — from oil and gas to forging — where safety and longevity depend on materials that hold up under heat and pressure.
Specifications
Material Deformed Grade 304 Steel Fiber
General Composition
| Carbon | Cromium | Nickel | Mu | S | P | Se |
| 0.08 | 18.0 | 8.0 | 2.0 | 0.03 | 0.045 | 1.0 |
| Nominal Size | .012 x .033 x 1" or 3/4" long |
| Cross Section | Rectangular |
| Equiv. Diameter | 0.022 |
| Tensile Strength | 85,000 psi |
| Specific Gravity | 7.85 |
| Density in lbs per cu./in. | 0.29 |
| Approx. Fibers per Lb. | 22,000 @ 3/4" long |
| Melting Range | 2550oF - 2650oF |
| Oxidation Resistance | To 1900oF |
| Defromation Spacing | .125 in. centers along length |
Material Deformed Grade 430 Steel Fiber
General Composition
| Carbon | Cromium | Nickel | Mu | S | P | Se |
| 0.12 | 14-18.0 | - | 1.0 | 0.03 | 0.040 | 1.0 |
| Nominal Size | .012 x .033 x 1" or 3/4" long |
| Cross Section | Rectangular |
| Equiv. Diameter | 0.022 |
| Tensile Strength | 70,000 psi |
| Specific Gravity | 7.85 |
| Density in lbs per cu./in. | 0.28 |
| Approx. Fibers per Lb. | 22,000 @ 3/4" long |
| Melting Range | 2600oF - 2700oF |
| Oxidation Resistance | To 1500oF |
| Defromation Spacing | .125 in. centers along length |
Why Use Steel Fibers?
Steel fibers are short, discrete lengths of steel used to reinforce concrete, refractory linings, or other composite materials. When mixed into concrete, they distribute loads more evenly, minimize cracking, and enhance resistance to impact and fatigue.
Steel fiber reinforced concrete (SFRC) combines the compressive strength of concrete with the tensile strength of steel, creating a durable, high-performance material ideal for industrial floors, precast elements, tunnels, and high-temperature applications. Unlike rebar or wire mesh, steel fiber for concrete is dispersed throughout the mix, offering reinforcement in all directions for a longer service life and fewer maintenance issues.
Request A Quote
Stainless Steel Fiber vs. Carbon Steel Fiber
Choosing between stainless steel fibers and carbon steel fibers depends on the environment and performance demands of your application.
Stainless Steel Fiber
Stainless steel fibers offer excellent corrosion resistance and maintain their structural integrity under prolonged exposure to heat and chemical attack. These fibers are ideal for refractory linings, furnaces, kilns, and areas where moisture or chemical exposure is a concern. Delta Stud Weld offers several grades of stainless steel fiber, including:
- 304 Stainless Steel Fiber – The most common choice for general-purpose reinforcement with solid corrosion and oxidation resistance.
- 310 Stainless Steel Fiber – High chromium and nickel content provides superior oxidation resistance up to 2000°F.
- 330 Stainless Steel Fiber – Designed for excellent strength at high temperatures, ideal for industrial furnaces and heat-treating environments.
- 430 Stainless Steel Fiber – Offers good corrosion resistance and high-temperature strength at a more economical cost.
- 446 Stainless Steel Fiber – Exceptional oxidation and scaling resistance, making it suitable for the most extreme heat applications.
Each stainless grade is precisely cut and packaged to ensure uniform performance and easy dispersion in concrete or refractory mixtures.
Carbon Steel Fiber
Carbon steel fibers provide high tensile strength and cost-effective reinforcement where corrosion resistance is less critical. They are widely used in heavy-duty floors, precast concrete, pavements, and refractory castables. Carbon steel fibers improve load distribution and crack control, delivering toughness and durability in large-scale construction and high-impact environments.
Whether your project requires stainless steel fiber for corrosion resistance or carbon steel fiber for high-strength reinforcement, Delta Stud Weld can supply steel fibers to your specifications with consistent quality and rapid delivery.
Advantages of Steel Fiber Reinforced Concrete
Incorporating steel fiber for concrete applications enhances performance across multiple areas:
- Crack Resistance: Fibers bridge micro-cracks before they grow, extending the structure’s lifespan.
- Flexural Strength: Increased toughness allows concrete to absorb greater loads before failure.
- Thermal Shock Resistance: Particularly valuable in refractory linings and industrial floors.
- Impact Durability: Ideal for environments with heavy mechanical stress or vibration.
- Reduced Maintenance: Less cracking means fewer repairs over time.
Delta Stud Weld’s steel fibers for concrete deliver a balance of strength, ductility, and performance unmatched by traditional reinforcement methods.
Why Choose Delta Stud Weld as Your Steel Fiber Supplier
Selecting the right steel fiber supplier means choosing a partner who understands your industry and your deadlines. With decades of experience, Delta Stud Weld delivers steel fibers for concrete and refractory applications that perform when it matters most. Our commitment to quality, speed, and U.S.-sourced materials has made us a trusted steel fiber supplier nationwide.
- Made in the USA: All materials sourced from trusted domestic mills.
- Fast Turnarounds: Efficient distribution and logistics for timely delivery.
- Customization: Available in multiple lengths, diameters, and grades.
- Quality Assurance: Precision testing and Material Test Reports (MTRs) available upon request.
- Expert Team: Skilled engineers and technicians with decades of experience in metal reinforcement.
FAQs About Steel Fibers
Steel fiber reinforced concrete is used in industrial flooring, precast elements, tunnels, pavements, and refractory linings where enhanced strength and crack resistance are required.
If your environment involves high heat, corrosion, or chemical exposure, stainless steel is recommended. For general construction or cost-sensitive projects, carbon steel fibers deliver outstanding performance at a lower cost.
In many cases, yes. Steel fibers distribute reinforcement uniformly, eliminating the need for traditional rebar in certain applications while improving structural integrity.
Yes. Our team can offer custom lengths, diameters, and grades to meet your project’s specifications, ensuring optimal performance and easy mixing.
Compared to plain or conventional reinforced concrete the most noticeable differences are improved ductility and post-crack performance. Shorter fibers with a high fiber count offer superior first-crack strength and better fatigue endurance. For ground-supported slabs, we highly recommend the 1" deformed fiber with a high fiber count.
- FLEXURAL STRENGTH: 1 1/2 to 3 times increase in the first crack and flexural bending strength can be achieved over plain concrete using a 1" fiber.
- FATIGUE RESISTANCE: The fatigue strength of steel fiber concrete is 1 1/2 times that of conventional concrete.
- IMPACT RESISTANCE: Steel fibers greatly increase concrete's resistance to damage from heavy impact.
- SHRINKAGE: Steel fibers themselves do not affect the shrinkage rate but they do minimize and help eliminate shrinkage cracks
- ABRASION RESISTANCE: Steel fibers offer a high degree of protection against abrasion and gouging along with any spalling being greatly reduced.
- PERMEABILITY: By effectively reducing the micro cracking SFRC will reduce the overall porosity of the matrix, making the concrete less permeable.
Concrete has always been an unpredictable material and no methodology can entirely eliminate cracking. Using SFRC offers an extremely effective means of controlling cracks. This together with proper sub-base preparation, joints, and curing are all essential to overall job performance.
Depending on the quantity and complexity of reinforcement in traditional design, SFRC can offer substantial cost savings. The superior performance of steel fiber will often reduce maintenance over the installation's life, thus reducing the project cost.
SFRC dosage rates depend on the application of the concrete properties required. Typically 40 lb. to 100 lb. will satisfy most requirements. Lower dosages tend to be used when replacing conventional wire mesh. At higher concentrations, SFRC will meet the most demanding requirements.
Adding steel fibers, particularly at higher concentrations, will give rise to an apparent loss as measured by the slump test. It is recommended that a superplasticizer be added to increase the slump 1-2" greater than the final desired target slump.
Fibers can be added at the batch plant by depositing them onto an aggregate conveyor. They can also be added to a transit mixer on site by the use of a lightweight conveyer attached directly to the back of the vehicle.
Synthetic fibers help control plastic shrinkage cracking which can occur in the very early stages of concrete drying. Steel fibers reinforce the concrete in its hardened state, thereby improving its strength and durability.
The major difference between steel and synthetics is their respective Youngs modulus and tensile yield strength. Steel fibers have a sufficiently high modulus of elasticity and tensile strength to assume excess strain across a crack and hold it tightly.
Yes, but you have to request any certifications when placing your order.
Get a Quote for High-Performance Steel Fibers
Looking for a steel fiber supplier you can count on? Delta Stud Weld distributes steel fibers for concrete and refractory reinforcement with unmatched quality, fast delivery, and expert support.
Request a quote today or contact us to discuss your material needs.
