Rupal Metals is a well-respected manufacturer and supplier of Stainless Steel 904L Flat Bars based in Delhi, India. They’re known for delivering top-notch stainless steel products that boast remarkable corrosion resistance. Stainless Steel 904L is a low-carbon, high-alloy austenitic stainless steel that excels in resisting acids, chlorides, and harsh oxidizing environments. Rupal Metals provides flat bars in a variety of dimensions and finishes, making them perfect for industries that need durable, corrosion-resistant components. These flat bars are crafted to meet strict quality standards, making them ideal for applications in chemical processing, marine, pharmaceutical, and petrochemical sectors where strength, corrosion resistance, and ease of fabrication are essential.
Stainless Steel 904L Flat Bars generally contain Chromium (19–23%), Nickel (23–28%), Molybdenum (4–5%), Copper (1–2%), and Carbon (≤0.02%). This unique blend gives them outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in environments rich in chlorides. The tensile strength ranges from 485 to 620 MPa, while the yield strength falls between 170 to 310 MPa, with an elongation of about 35%, ensuring good toughness and ductility. SS 904L flat bars are also known for their excellent weldability and formability, maintaining high mechanical integrity and corrosion resistance, making them suitable for challenging chemical and marine environments.
| Standard | ASTM B649, ASME SB649 |
| Round Bar Size | 3mm~ 800mm |
| Square Bar Size | 4mm* 4mm ~100mm* 100mm |
| Flat Bar Size | 2mm ~ 100mm |
| Hex Bar Size | 2mm ~ 100mm |
| Angle Size | 3mm* 20mm* 20mm~ 12mm* 100mm* 100mm |
| Thickness | 50 mm to 6000 mm Long |
| Length | 1 To 6 Meters, Custom Cut Length |
| Form | Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc |
| Grade | Ni | Mo | Cr | Cu | C | Mn | Si | P | S |
| 904L | 23 – 28 | 4 – 5 | 19 – 23 | 1 – 2 | 0.02 max | 2.0 max | 1.0 max | 0.045 max | 0.035 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.05 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
| STANDARD | WERKSTOFF NR. | UNS | AFNOR | JIS | BS | KS | EN |
| 904L | 1.4539 | N08904 | Z2NCUD31-20AZ | SUS 890L | 904S13 | STS 317J5L | X1NiCrMoCu25-20-5 |
Stainless Steel 904L Flat Bar is widely used in chemical processing, oil and gas, marine, pharmaceutical, and pulp and paper industries due to its exceptional corrosion resistance, particularly in acidic, chloride-rich, and high-stress environments.
Stainless Steel 904L offers superior corrosion resistance compared to standard austenitic stainless steels, excelling in harsh environments with strong acids (sulfuric, phosphoric) and chloride exposure, due to its high nickel, chromium, and molybdenum content, reducing pitting and stress corrosion.
Yes, Stainless Steel 904L Flat Bar is highly suitable for marine environments due to its excellent resistance to chloride-induced pitting, crevice corrosion, and stress corrosion cracking, making it ideal for shipbuilding, seawater equipment, and coastal structural applications.
Stainless Steel 904L Flat Bars find extensive use in chemical processing equipment, heat exchangers, storage tanks, and reactor vessels that are exposed to aggressive acids and chloride environments. They are particularly favored in the pharmaceutical industry for their hygienic and corrosion-resistant properties. In marine and offshore sectors, 904L flat bars are employed in seawater handling systems, pump shafts, and structural components that require exceptional resistance to corrosion and stress. The flat bar shape allows for easy fabrication, machining, and welding, making it an excellent choice for structural applications and architectural projects.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
Copyright 2024 Rupal Metals. All rights reserved
