Rupal Metals stands out as a trusted manufacturer and supplier of Stainless Steel 904L Forgings right in the heart of Delhi, India. They specialize in delivering top-notch forged components that are perfect for tough, corrosive environments. Stainless Steel 904L is a low-carbon, high-alloy austenitic stainless steel, crafted specifically to resist strong reducing acids and chloride-rich conditions. Rupal Metals offers these forgings in a variety of shapes, including rings, shafts, flanges, and custom designs, all made using cutting-edge forging techniques to guarantee exceptional strength and durability. These forgings are a go-to choice for industries like chemical, marine, pharmaceutical, and petrochemical, where long-lasting, corrosion-resistant, and high-strength parts are essential.
Stainless Steel 904L Forgings are made up of Chromium (19–23%), Nickel (23–28%), Molybdenum (4–5%), Copper (1–2%), and a very low Carbon content (≤0.02%). This unique blend gives the alloy remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking, even in harsh environments. The typical tensile strength ranges from 490 to 710 MPa, with a yield strength of about 220 MPa and an elongation of around 35%. This material is known for its excellent toughness, weldability, and structural stability, whether in high temperatures or sub-zero conditions, making 904L forgings perfect for demanding, pressure-bearing applications.
| Standard | ASTM A182, ASME SA182 |
| Specification | DIN, ASTM, BS and all International Standards |
| Flat bar blocks | up to 27″ width and 15,000 lbs. |
| Cylinders and sleeves | up to 50″ maximum O.D. and 65″ maximum length |
| Discs and hubs | up to 50″ diameter and 20,000 lbs. |
| Rolled, hand forged or mandrel forged rings | up to 84″ maximum O.D. and 40″ maximum length |
| Rounds, shafts and step shafts | up to 144″ maximum length and 20,000 lbs. |
| Forging Types | Impression Die Forging, Open Die Forging, Seamless Rolled Forging, Hot Forging, Cold Forging, Open die hammer forging, Impression die drop forging, Closed Die Forging, Press Forging, Upset Forging, Compression Forging, Swaging, Rotary Forging, Roll forging. |
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | Cu | |
| 904L | min. | – | – | – | – | – | 19.0 | 4.0-5.0 | 23.0 | 1.0 |
| max. | 0.20 | 2.0 | 1.0 | 0.045 | 0.035 | 23.0 | 28.0 | 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 |
Yes, Stainless Steel 904L can be forged into custom shapes. Through advanced forging techniques, it can be shaped into various configurations to meet specific design and performance requirements for different applications.
Stainless Steel 904L forgings require minimal maintenance. Regular cleaning with mild detergents, periodic inspections for corrosion, and avoiding high-temperature exposure to chloride-rich environments ensure optimal performance and longevity.
Yes, Stainless Steel 904L forgings can be customized for specific applications. They can be tailored in size, shape, and finish to meet unique requirements, ensuring optimal performance in various industries.
Stainless Steel 904L Forgings find their place in various industries that deal with extremely corrosive environments. You’ll often see them in pressure vessels, heat exchanger components, reactor flanges, valve bodies, pump parts, and marine fittings. In the chemical and pharmaceutical sectors, these forgings excel in acidic and chloride-rich media, such as sulfuric and phosphoric acids. In marine and offshore applications, they are utilized in seawater cooling systems and structural hardware. Their outstanding formability and weldability also make them a great fit for precision-demanding tasks.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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