Luois Metals, a well-respected manufacturer and supplier located in Houston, USA, specializes in high-quality Stainless Steel 304L Flat Bars that are crafted for exceptional corrosion resistance, durability, and versatility. Thanks to cutting-edge production technology and rigorous quality control, Luois Metals guarantees precise dimensions, a smooth surface finish, and reliable mechanical strength in every flat bar. Designed to comply with international standards, these Stainless Steel 304L Flat Bars find their place in various industries, including chemical processing, food processing, pharmaceuticals, marine, and construction. Renowned for their long-lasting performance and adaptability, Luois Metals’ 304L Flat Bars provide trustworthy solutions for both standard and custom engineering needs.
These flat bars are primarily made up of 18–20% chromium and 8–12% nickel, featuring a lower carbon content that enhances weldability and reduces carbide precipitation during welding. This unique composition offers remarkable resistance to corrosion, oxidation, and chemical exposure, while also delivering good tensile strength, yield strength, and toughness. Their low carbon structure ensures stability during fabrication, prevents sensitization, and maintains durability even in tough conditions. The perfect balance of strength, ductility, and corrosion resistance makes Stainless Steel 304L Flat Bars ideal for both heavy-duty and precision applications across various sectors.
| Specification | EN 10272, EN 10088-3 Grade 304/ 304L, 316/ 316L |
|---|---|
| Standard | API, ASME, SUS, DIN, EN, GB, UNS, ASTM, AISI |
| Sizes | 3mm to 800mm diameter |
| Length |
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| Finish | Cold Drawn Turned, Bright Drawn, Polished, Rough Turned, Centreless Ground, Bright, Annealed, Smooth Turned, Peeled, Grinding, Black |
| Tolerances | H12, H11, K11, K12, H10, H8, H9, H13, K10, K9 |
| Surface Finish | 1D, HL, 8K, NO.4, 2D, NO.1, NO.3, 2B, BA |
| Production Method | Rolled / Forged |
| Characteristics |
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| Value Added Services at Suraj Metal |
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| Other available forms | Forging, Profiles, T-Bar, Rod, Hollow, Triangle, Channel, Threaded, Ingot, Rounds, Rectangle, Blocks, Billet, I/H, Half-Round, Angle, Precision-Ground |
| Element | C | Cr | Mn | Ni | P | S | Si |
|---|---|---|---|---|---|---|---|
| SS 304L | 8.0 – 11.0 | 18.0 – 20.0 | 2.0 max | 8.0 – 11.0 | 0.045 max | 0.03 max | 1.0 max |
| Element | Tensile Strength | Yield Strength | Elongation | Reduction in Area | Hardness |
|---|---|---|---|---|---|
| SS 304L | Psi – 85,000 | Psi – 45,000 | 50% | 55% | Rb 180 |
| FlatS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.62 | 2.05 |
| 18 | 0.79 | 2.59 |
| 20 | 0.76 | 2.49 |
| 22 | 1.18 | 3.87 |
| 25 | 1.52 | 5.00 |
| 28 | 1.91 | 6.27 |
| 30 | 2.19 | 7.20 |
| 32 | 2.50 | 8.19 |
| 36 | 3.16 | 10.37 |
| 38 | 3.52 | 11.55 |
| 40 | 3.90 | 12.80 |
| 45 | 4.94 | 16.20 |
| 50 | 6.10 | 20.00 |
| 56 | 7.65 | 25.08 |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
| FlatS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.62 | 2.05 |
| 18 | 0.79 | 2.59 |
| 20 | 0.76 | 2.49 |
| 22 | 1.18 | 3.87 |
| 25 | 1.52 | 5.00 |
| 28 | 1.91 | 6.27 |
| 30 | 2.19 | 7.20 |
| 32 | 2.50 | 8.19 |
| 36 | 3.16 | 10.37 |
| 38 | 3.52 | 11.55 |
| 40 | 3.90 | 12.80 |
| 45 | 4.94 | 16.20 |
| 50 | 6.10 | 20.00 |
| 56 | 7.65 | 25.08 |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
Stainless Steel 304L flat bar is commonly used in construction, automotive, food processing, and chemical industries due to its excellent corrosion resistance, strength, and durability. It is used for structural supports, brackets, frames, conveyors, and various architectural applications.
The typical thickness range of Stainless Steel 304L flat bars varies from 1/16 inch (1.5 mm) to 6 inches (150 mm). The exact thickness depends on the application requirements, with custom sizes available for specific industry needs.
Yes, Stainless Steel 304L flat bars can be welded using various techniques, such as TIG, MIG, or stick welding. Its excellent weldability is one of its key features, though proper precautions should be taken to avoid distortion or corrosion.
You’ll find Stainless Steel 304L Flat Bars commonly used in structural frameworks, support systems, marine equipment, architectural components, and food processing machinery. They’re also perfect for chemical and pharmaceutical equipment, engineering parts, and high-strength assemblies that face corrosive environments. With excellent machinability and weldability, these flat bars are perfect for custom fabrication, large-scale production, and precision engineering projects. Luois Metals is committed to ensuring that its Stainless Steel 304L Flat Bars meet strict quality standards, providing consistent performance and reliability.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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