Neil Metals is a reliable manufacturer and supplier of Stainless Steel 304 Hollow Bars, proudly based in Kolkata, India. We take great care in crafting our SS 304 hollow bars to ensure they offer outstanding machinability, corrosion resistance, and precise dimensions, making them perfect for critical engineering applications. Adhering to ASTM A276 and other relevant standards, our bars are widely utilized in industries that prioritize strength, hygiene, and durability. At Neil Metals, we offer a range of stainless steel hollow bars in various sizes and finishes to meet the diverse needs of sectors like food processing, pharmaceuticals, automotive, and construction.
Stainless Steel 304 is an austenitic stainless steel alloy that contains 18–20% chromium, 8–10.5% nickel, and a low carbon content. It boasts a tensile strength of about 515 MPa, a yield strength of 205 MPa, and an elongation of around 40%, making it both strong and workable. This alloy excels in resisting corrosion across different environments, including atmospheric, chemical, and mild acidic conditions. The hollow bar design helps minimize machining time and material waste during component manufacturing.
| Specifications | ASTM A276 / ASME SA 276 |
| Thickness | 0.25 – 3 mm |
| Outer Diameter | 16 to 119 mm |
| Material Grade | Stainless Steel 304 |
| Hollow Bars Types | Square, Circular, Rectangular Bars |
| Element | SS 304 |
| C | 0.08 max |
| Mn | 2 max |
| Si | 0.75 max |
| P | 0.045 max |
| S | 0.030 max |
| Cr | 18 – 20 |
| Mo | – |
| Ni | 8 – 11 |
| Element | SS 304 |
| Density | 8.0 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
Stainless Steel 304 Hollow Bars find extensive use in machined components, pump shafts, hydraulic cylinders, automotive parts, and architectural structures. They are particularly suited for applications that require precision machining, hygienic conditions, and corrosion resistance, such as food-grade equipment, medical devices, and marine fittings. The hollow section design not only allows for lighter components but also maintains structural integrity, which helps reduce both material costs and machining time. With their excellent weldability and formability, SS 304 hollow bars are a top choice in industries where durability, cleanliness, and aesthetics are key.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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