Rupal Metals stands out as a leading manufacturer and supplier of Stainless Steel 904L Hollow Bars in Delhi, India. They provide top-notch, corrosion-resistant stainless steel products designed for the most demanding applications. Known for its low-carbon austenitic alloy, Stainless Steel 904L boasts remarkable resistance to strong acids, chlorides, and oxidizing environments. Rupal Metals offers precision-engineered hollow bars in a variety of sizes, perfect for critical uses in chemical processing, pharmaceuticals, and seawater handling. These hollow bars not only feature excellent mechanical properties but also superior corrosion resistance and weldability, making them perfect for crafting complex components that need to endure harsh conditions.
Stainless Steel 904L Hollow Bars generally consist of Chromium (19–23%), Nickel (23–28%), Molybdenum (4–5%), Copper (1–2%), and Carbon (≤0.02%). This unique composition grants outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. The typical tensile strength falls between 485–620 MPa, with a yield strength of 170–310 MPa and an elongation of about 35%. SS 904L is known for its excellent toughness and formability, along with good weldability and high resistance to chloride-induced corrosion, making it a reliable choice for harsh chemical and marine environments where performance is crucial.
| 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 |
SS 904L stainless steel consists of approximately 24-26% chromium, 19-23% nickel, 4-5% molybdenum, 1-2% copper, and small amounts of manganese, silicon, and carbon. The copper enhances corrosion resistance, particularly in acidic environments, while maintaining high strength.
The typical diameter range for SS 904L hollow bars varies from 10 mm to 300 mm, although custom sizes can be manufactured. These bars are available in various wall thicknesses, depending on specific application requirements and industry standards.
Stainless Steel 904L Hollow Bars find extensive use in chemical processing, seawater desalination, and pharmaceutical manufacturing, thanks to their exceptional corrosion resistance. Common applications include heat exchangers, valves, pump shafts, flanges, and reactor vessels that face highly aggressive environments. The hollow bar design allows for easy machining and fabrication of tubular components, which helps reduce weight while maintaining strength. SS 904L is also utilized in the petrochemical and offshore industries, where its resistance to acids and chlorides is essential for ensuring reliability and performance in challenging conditions.
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
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