Semih Metals of Istanbul, Turkey, is a trustworthy manufacturer and supplier of 904L stainless steel bars and rods, which are of high-quality materials with superior corrosion resistance in extreme environments. With the most recent manufacturing technology and an utmost dedication to quality, Semih Metals manufactures 904L bars and rods with international standards and designed specifically for use by chemical processing, pharmaceutical, marine, and petrochemical industries. The company offers high performance, strength, and dimensional accuracy, providing corrosion-resistant stainless steel products that can sustain the toughest corrosive environments.
Stainless Steel 904L is a low-carbon, high-alloy austenitic stainless steel with about 20% chromium, 25% nickel, 4.5% molybdenum, and a small percentage of copper. Its composition offers excellent resistance against pitting, crevice corrosion, and stress corrosion cracking in chloride-rich as well as acidic environments. It has good mechanical properties with average tensile strength (approximately 490–710 MPa) and high toughness, even under sub-zero conditions. 904L is also weldable and shapeable with ease and is ideal for a wide range of intricate and critical applications.
| 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.
Stainless Steel 904L bars and rods find extensive application in industries where maximum resistance to corrosion is required. They are suitable for chemical processing equipment like reactors, heat exchangers, and tanks that deal with highly aggressive acids like sulfuric and phosphoric acid. For components in the marine environment that are exposed to seawater, like fittings, shafts, and fasteners, 904L is applied. The pharmaceutical and food sectors use 904L for hygienic and corrosion-resistant processing equipment. It finds applications in pulp and paper mills, offshore platforms, and flue gas desulfurization systems where resistance to harsh environments and toughness are of utmost concern.






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