Chuck Metals stands out as a top manufacturer and supplier of Stainless Steel 904L Bars and Rods right here in Singapore, delivering high-performance solutions to clients throughout Pulau Ujong and Southeast Asia. This super austenitic alloy, known as Stainless Steel 904L, boasts remarkable resistance to corrosion, even in tough environments like strong acids and chloride-rich settings. Our 904L bars and rods are crafted in line with ASTM B649 and other international standards, guaranteeing top-notch quality, precise dimensions, and impressive mechanical strength. Chuck Metals offers these rods in a variety of sizes and finishes, making them perfect for critical applications in the chemical processing, marine, and pharmaceutical sectors.
The composition of Stainless Steel 904L Bars and Rods includes approximately 19–23% chromium, 23–28% nickel, 4–5% molybdenum, and 1–2% copper, all while maintaining a very low carbon content. This alloy provides outstanding tensile strength (490–740 MPa), yield strength (around 220 MPa), and high elongation (about 35%), ensuring both formability and structural integrity. The addition of molybdenum and copper significantly boosts its resistance to sulfuric acid, pitting, and crevice corrosion, particularly in chloride environments. Stainless Steel 904L performs exceptionally well in both oxidizing and reducing conditions, remains non-magnetic in all situations, and offers excellent weldability and machinability.
| 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.
Industries that require strong corrosion resistance and high purity widely utilize Stainless Steel 904L Bars and Rods. In the chemical and petrochemical fields, they serve as vital components for heat exchangers, piping, and reactors that come into contact with sulfuric and phosphoric acids. In the marine sector, 904L rods are the go-to choice for seawater systems and boat fittings, thanks to their outstanding resistance to chloride corrosion. They also find applications in pharmaceuticals, pulp and paper production, and gas scrubber systems. With their superior formability and hygienic properties, they are ideal for food processing and clean room environments, ensuring long-lasting durability and minimal maintenance.






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