Aung Metals, a leading manufacturer and supplier located in Naypyidaw, Myanmar, specializes in high-quality **Stainless Steel 904L Flat Bars**. These bars are celebrated for their exceptional corrosion resistance, strength, and durability. Crafted with precision to adhere to international quality standards, they promise outstanding performance even in the most corrosive and demanding industrial settings. Thanks to their high nickel, chromium, and molybdenum content, 904L stainless steel offers remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. Aung Metals’ 904L Flat Bars are perfect for use in industries like chemical processing, marine, oil and gas, and power generation, ensuring long-lasting reliability and operational efficiency.
These Stainless Steel 904L Flat Bars contain about 20–23% chromium, 25–28% nickel, and 4–5% molybdenum, along with trace amounts of copper and manganese, which boost their corrosion and oxidation resistance. They boast impressive mechanical properties, including a tensile strength of 500–700 MPa, yield strength of 215–275 MPa, and elongation of 35–45%. The material is known for its excellent hardness, toughness, and weldability, making it dependable under high-pressure, high-temperature, and chemically aggressive conditions—ideal for critical industrial applications that demand durability and structural integrity.
| 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 |
Stainless Steel 904L Flat Bar is widely used in chemical processing, oil and gas, marine, pharmaceutical, and pulp and paper industries due to its exceptional corrosion resistance, particularly in acidic, chloride-rich, and high-stress environments.
Stainless Steel 904L offers superior corrosion resistance compared to standard austenitic stainless steels, excelling in harsh environments with strong acids (sulfuric, phosphoric) and chloride exposure, due to its high nickel, chromium, and molybdenum content, reducing pitting and stress corrosion.
Yes, Stainless Steel 904L Flat Bar is highly suitable for marine environments due to its excellent resistance to chloride-induced pitting, crevice corrosion, and stress corrosion cracking, making it ideal for shipbuilding, seawater equipment, and coastal structural applications.
Aung Metals’ Stainless Steel 904L Flat Bars find extensive use in sectors where high corrosion resistance and mechanical strength are crucial. They are well-suited for chemical and petrochemical processing equipment, pumps, valves, heat exchangers, and marine applications. Additionally, they serve in structural components, fasteners, and machinery that come into contact with acids, chlorides, and other corrosive environments. Their blend of outstanding durability, precise dimensions, and resistance to pitting and crevice corrosion guarantees a long service life and reliable performance in challenging industrial and engineering applications.
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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