Aiman Metals is the leading supplier and manufacturer of Stainless Steel 904L Bars and Rods. We take pride in offering high-quality 904L Bars and Rods that are specifically engineered to deliver exceptional performance in environments that demand high corrosion resistance. Our products are designed to meet the rigorous requirements of industries such as chemical processing, petrochemical, and marine applications. At Aiman Metals, we ensure that every Stainless Steel 904L Bar and Rod is crafted with precision and durability, offering unmatched strength, resistance to acid corrosion, and reliability for our clients’ critical applications.
Stainless Steel 904L Bars and Rods are composed of 19-23% chromium, 23-28% nickel, 4-5% molybdenum, and 1-2% copper, offering excellent resistance to corrosion, especially in acidic environments. With a tensile strength of 520-720 MPa and a yield strength of around 240 MPa, it provides high strength and toughness. Its resistance to pitting, crevice corrosion, and stress corrosion cracking makes it ideal for harsh applications in chemical processing, marine, and power generation industries, with great weldability and formability.
| Grade | SS 904L – UNS N08904 |
|---|---|
| Specification | ASTM A276 UNS N08904, WS 1.4539, AFNOR Z2CNDU 25-20 |
| Round bar size | Diameter: 3-~800mm |
| Hex Bar size | 2-100mm A/F |
| Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Square bar size | 4 to 100mm |
| Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Section | 3.0 to 12.0mm thickness |
| Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 904Lmm ID) |
| Billet Size | 1/2″ to 495mm Diameter |
| Rectangles Size | 33 x 30mm to 295 x 1066mm |
| Round Bar Standard Dimensions | Diameter / Height: |
| Finish | Cold (bright) drawn, centreless ground,smooth turned, peeled, slit rolled edge, hot rolled, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Condition | Hardened & tempered, annealed |
| Technique | Stainless Steel 904L Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Processing | Bar cutting to 650mm |
| Form | Stainless Steel 904L Welding Rod, Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| Our stockyad location for fast delivery across India | Coimbatore, Bhubaneswar, Ahmedabad, Bengaluru, Thiruvananthapuram, Agra, Chennai, Noida, Mumbai, Shivamogga, Dhanbad, Hyderabad, Tiruchirappalli, Tirunelveli, Pune, Pimpri-Chinchwad, Navi Mumbai |
| Our Stainless Steel 904L Round bar conforms to NACE MR0175/ISO 15156 | |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
|---|---|---|---|---|---|---|---|---|---|
| SS 904L | 0.020 max | 2 max | 1 max | 0.040 max | 0.030 max | 19.0-23.0 | 4.0-5.0 max | 23.00 – 28.00 | 1.0-2.0 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35% |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | KS | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 904L | 1.4539 | N08904 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
Stainless Steel 904L is a high-alloy, corrosion-resistant material that contains significant amounts of nickel, chromium, and molybdenum. It is designed for use in highly corrosive environments, offering excellent resistance to acids, particularly sulfuric acid, and chloride corrosion. It is commonly used in chemical processing, marine, and pharmaceutical industries.
The key benefits of Stainless Steel 904L Bars and Rods include exceptional resistance to corrosion, excellent weldability, and good formability. These properties make them ideal for applications in aggressive chemical environments, marine applications, and other high-performance settings.
Stainless Steel 904L Bars and Rods are widely used in industries such as chemical processing, petrochemical, power generation, and marine environments. They are ideal for fabricating equipment like heat exchangers, reactors, pipes, and pollution control systems, where high resistance to corrosion and acid is crucial.
We manufacture Stainless Steel 904L Bars and Rods, which are thoroughly corrosion-resistant and boast comparatively high strength. Such bars and rods are typically used in industries where acidic environments are inevitable, such as chemical processing, petrochemical, and pharmaceutical sectors. These also serve in marine applications, power generation, and pollution control equipment. The material has excellent weldability and formability, making it ideal for all pipe, heat exchanger, and reactor construction for durable performance even under corrosive environments. Our Stainesses Steel 904L Bars and Rods serve best for superior durability and reliability in demanding applications.






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