Aung Metals is a reliable manufacturer and supplier located in Naypyidaw, Myanmar, focusing on top-notch Stainless Steel 904L Hollow Bars. With a strong dedication to precision engineering, durability, and customer satisfaction, Aung Metals delivers products that align with international standards for performance and reliability. Their Stainless Steel 904L Hollow Bars are crafted to provide outstanding resistance to corrosion, high temperatures, and tough environments. Supported by cutting-edge manufacturing technology and rigorous quality control, Aung Metals guarantees that each product meets the high demands of industries like chemical processing, marine engineering, and power generation, both in Myanmar and beyond.
Stainless Steel 904L Hollow Bar is a high-alloy, low-carbon austenitic stainless steel that includes nickel (23–28%), chromium (19–23%), molybdenum (4–5%), copper (1–2%), and iron (the balance), along with trace amounts of carbon, manganese, and silicon. This unique composition offers remarkable resistance to strong reducing acids, chloride attack, and stress corrosion cracking. On the mechanical side, it boasts a tensile strength of about 490 MPa, a yield strength of 220 MPa, and an elongation of 35%, ensuring excellent toughness, weldability, and formability, even in challenging industrial and marine settings.
| 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.
Stainless Steel 904L Hollow Bars are extensively utilized in industries that demand superior corrosion resistance and structural reliability. Typical applications include equipment for chemical and petrochemical processing, heat exchangers, piping systems, and pharmaceutical machinery that are exposed to acidic or chloride-rich environments. In the marine sector, they are employed for propeller shafts, seawater cooling systems, and desalination plants, thanks to their exceptional resistance to pitting and crevice corrosion. Moreover, 904L Hollow Bars are also found in oil and gas refineries, food processing facilities, and the paper and pulp industries, where long-lasting durability and cleanliness are crucial for maintaining operational efficiency and safety.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
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