Al Summan Metals is a dependable manufacturer and supplier based in Dubai, UAE, specializing in high-quality Stainless Steel 904L Hollow Bars. With a firm commitment to precision engineering, durability, and customer satisfaction, Al Summan Metals provides products that meet international standards for performance and reliability. Their Stainless Steel 904L Hollow Bars are engineered to offer exceptional resistance to corrosion, elevated temperatures, and demanding environments. Backed by advanced manufacturing technology and strict quality control, Al Summan Metals ensures that every product satisfies the rigorous requirements of industries such as chemical processing, marine engineering, and power generation, both within UAE and abroad.
Stainless Steel 904L Hollow Bar is a high-alloy, low-carbon austenitic stainless steel composed of nickel (23–28%), chromium (19–23%), molybdenum (4–5%), copper (1–2%), and iron (making up the remainder), together with small quantities of carbon, manganese, and silicon. This distinctive makeup delivers outstanding resistance to aggressive reducing acids, chloride attack, and stress corrosion cracking. In terms of mechanical properties, it features a tensile strength of roughly 490 MPa, a yield strength of 220 MPa, and an elongation of 35%, providing superb toughness, weldability, and formability, even in demanding industrial and marine environments.
| 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 is made up of roughly 24-26% chromium, 19-23% nickel, 4-5% molybdenum, 1-2% copper, along with minor quantities of manganese, silicon, and carbon. The copper improves resistance to corrosion, especially in acidic conditions, while preserving high strength.
The diameter of SS 904L hollow bars usually ranges between 10 mm and 300 mm, though bespoke dimensions can also be produced. Such bars come in a range of wall thicknesses, based on particular application needs and industry standards.
Stainless Steel 904L Hollow Bars find broad use across industries that require excellent corrosion resistance and dependable structural performance. Common uses include machinery for chemical and petrochemical processing, heat exchangers, piping systems, and pharmaceutical equipment subjected to acidic or chloride-heavy conditions. Within the marine sector, they serve in propeller shafts, seawater cooling systems, and desalination plants, owing to their outstanding resistance to pitting and crevice corrosion. In addition, 904L Hollow Bars are also present in oil and gas refineries, food processing plants, and the paper and pulp industries, where enduring durability and hygiene are essential for sustaining operational efficiency and safety.
We supply products accompanied by both mill test certificates and third-party test certificates, guaranteeing the highest standards of quality and compliance.
Al Summan Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Dubai, UAE
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