One of the top producers and suppliers of stainless steel 904L hex bars, Neil Metals is based in Kolkata, India, and is renowned for its exceptional mechanical qualities and high resistance to corrosion. These hex bars are widely used in many different industrial sectors and are designed to perform well in extremely aggressive environments. Neil Metals is a well-known brand among customers across the country because it guarantees exact manufacturing standards, affordable prices, and timely delivery. The company’s 904L Hex Bars of stainless steel are perfect for applications requiring strength, corrosion resistance, and durability, like chemical processing, marine equipment, and pharmaceutical systems. They also meet international quality standards.
Stainless Steel 904L Hex Bars are low-carbon, austenitic stainless steel alloys that have silicon and manganese added. They also contain 19–23% chromium, 23-28% nickel, 4-5% molybdenum, and 1-2% copper. They are very resistant to acetic, phosphoric, and sulphuric acids. Ductility and toughness are guaranteed by the material’s tensile strength of 490–710 MPa, yield strength of ≥220 MPa, and elongation of 35%. In harsh conditions, especially those where chloride stress corrosion and crevice corrosion are prevalent, 904L hex bars are dependable due to their high pitting resistance and exceptional weldability.
| Specifications | ASTM B649 / ASME SB 649 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Stainless Steel Round Bar | Outside Diameter in the range of 4mm to 500mm |
| Stainless Steel Bright Bar | Outside Diameter in the range of 4mm to 100mm |
| Stainless Steel Hex Bar | 18mm – 57mm (11/16″ to 2-3/4″) |
| Stainless Steel Square Bar | 18mm – 47mm (11/16″ to 1-3/4″) |
| Stainless Steel Flat Bar | 1/2″ to 10″ in thickness range of 2 mm to 150mm, Custom Size Stainless Steel Flats available |
| Range | 3.17 MM TO 350 MM DIA |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Finishing | Bright, Polish & Black |
| Form of | Hex, Wire (Coil Form), Wiremesh, Billet, Ingot, Forging Etc., |
| Other Services | Machining (CNC), Centreless Grinding (CG), Heat Treatment, Annealing, Pickling, Polish, Rolling, Forging, Cutting, Bending, Minor Fabrication, |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu | |
| SS 904L | Min | – | – | – | – | – | 19 | 4 | 23 | 1 |
| Max | 0.02 | 2 | 1 | 0.045 | 0.035 | 23 | 5 | 28 | 2 |
| Grade | Tensile strength (MPa) | Yield Strength 0.2% Proof(MPa) | Elongation (% in 50mm) | Hardness – Brinell |
| 904L | 490 | 220 | 36 | 70-150 |
| HEXAGONS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.55 | 1.79 |
| 18 | 0.69 | 2.27 |
| 20 | 0.85 | 2.80 |
| 22 | 1.03 | 3.39 |
| 25 | 1.33 | 4.38 |
| 28 | 1.67 | 5.49 |
| 30 | 1.92 | 6.30 |
| 32 | 2.19 | 7.17 |
| 36 | 2.77 | 9.07 |
| 38 | 3.08 | 10.11 |
| 40 | 3.41 | 11.20 |
| 45 | 4.32 | 14.18 |
| 50 | 5.34 | 17.50 |
| 56 | – | – |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
Because of their exceptional resistance to acidic corrosion and chloride attack, stainless steel 904L Hex Bars are widely used in heat exchangers, chemical processing facilities, pharmaceutical manufacturing, and marine environments. In systems that deal with strong acids like sulphuric and hydrochloric, they are perfect for pump shafts, valves, fasteners, and structural elements. Additionally, the bars are used in desalination facilities, oil refineries, and the paper and pulp industries. For food processing equipment and pollution control systems, where high purity and long-term dependability are crucial, their exceptional formability and corrosion resistance make them appropriate.
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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