A top producer and supplier of SS 904L Hollow Bars, George Metals provides a large selection of sizes, shapes, and specifications to satisfy various industrial demands. Our 904L stainless steel hollow bars are made from premium raw materials, combining copper, nickel, molybdenum, and chromium for remarkable strength and resistance to corrosion. These bars offer exceptional mechanical performance and durability because they are designed for high-pressure and high-temperature applications. George Metals is a reliable partner for crucial applications in demanding environments because we tightly adhere to international manufacturing standards, guaranteeing the accuracy and dependability of every product.
With trace additions of additional elements for improved performance, SS 904L is a highly alloyed austenitic stainless steel that is composed of 23–28% chromium, 19–23% nickel, 4–5% molybdenum, and copper. It has a yield strength of 240–310 MPa and a tensile strength of 520–720 MPa. This grade is well known for its exceptional resistance to stress corrosion cracking, pitting, and crevice corrosion, especially in environments that are acidic and chloride-rich. SS 904L offers long-term durability in harsh chemical, thermal, and mechanical environments in addition to its exceptional formability and weldability.
| Standard | ASTM B649, ASME SB649 |
| Round Bar Size | 3mm~ 800mm |
| Square Bar Size | 4mm* 4mm ~100mm* 100mm |
| Flat Bar Size | 2mm ~ 100mm |
| Hex Bar Size | 2mm ~ 100mm |
| Angle Size | 3mm* 20mm* 20mm~ 12mm* 100mm* 100mm |
| Thickness | 50 mm to 6000 mm Long |
| Length | 1 To 6 Meters, Custom Cut Length |
| Form | Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc |
| Grade | Ni | Mo | Cr | Cu | C | Mn | Si | P | S |
| 904L | 23 – 28 | 4 – 5 | 19 – 23 | 1 – 2 | 0.02 max | 2.0 max | 1.0 max | 0.045 max | 0.035 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.05 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
| STANDARD | WERKSTOFF NR. | UNS | AFNOR | JIS | BS | KS | EN |
| 904L | 1.4539 | N08904 | Z2NCUD31-20AZ | SUS 890L | 904S13 | STS 317J5L | X1NiCrMoCu25-20-5 |
SS 904L stainless steel consists of approximately 24-26% chromium, 19-23% nickel, 4-5% molybdenum, 1-2% copper, and small amounts of manganese, silicon, and carbon. The copper enhances corrosion resistance, particularly in acidic environments, while maintaining high strength.
The typical diameter range for SS 904L hollow bars varies from 10 mm to 300 mm, although custom sizes can be manufactured. These bars are available in various wall thicknesses, depending on specific application requirements and industry standards.
Industries that require exceptional corrosion resistance, particularly in harsh and acidic environments, make extensive use of SS 904L hollow bars. They are frequently used in food processing, pharmaceutical manufacturing, and chemical processing where it is necessary to reduce corrosion from strong acids. Because they are resistant to seawater and chloride attack, they are perfect for desalination equipment and pollution control systems in marine applications. These hollow bars also provide long service life and consistent performance under harsh conditions in high-temperature heat exchangers, pressure vessels, and piping systems where mechanical strength and chemical resistance are crucial.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
George Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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