Al Summan Metals, a top manufacturer and supplier based in Dubai, UAE, focuses on premium **Stainless Steel 904L Flat Bars**. These bars are renowned for their outstanding corrosion resistance, strength, and durability. Engineered with precision to meet international quality standards, they deliver superior performance even in the harshest and most demanding industrial environments. Owing to their elevated nickel, chromium, and molybdenum content, 904L stainless steel provides excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Al Summan Metals’ 904L Flat Bars are ideal for applications across industries such as chemical processing, marine, oil and gas, and power generation, guaranteeing enduring reliability and operational efficiency.
These 904L Stainless Steel Flat Bars contain roughly 20–23% chromium, 25–28% nickel, and 4–5% molybdenum, together with small quantities of copper and manganese, which enhance their resistance to corrosion and oxidation. They deliver remarkable mechanical properties, such as a tensile strength of 500–700 MPa, yield strength of 215–275 MPa, and elongation of 35–45%. The material is recognized for its outstanding hardness, toughness, and weldability, making it reliable under high-pressure, high-temperature, and chemically harsh conditions—perfect for essential industrial applications requiring 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 extensively utilized across chemical processing, oil and gas, marine, pharmaceutical, and pulp and paper industries owing to its outstanding resistance to corrosion, especially in acidic, chloride-rich, and high-stress conditions.
Stainless Steel 904L delivers better corrosion resistance than conventional austenitic stainless steels, performing exceptionally in demanding conditions involving strong acids (sulfuric, phosphoric) and chloride contact, thanks to its elevated nickel, chromium, and molybdenum content, which lessens pitting and stress corrosion.
Yes,Stainless Steel 904L Flat Bar is exceptionally well-suited for marine settings thanks to its outstanding resistance to chloride-driven pitting, crevice corrosion, and stress corrosion cracking, which makes it perfect for shipbuilding, seawater equipment, and coastal structural uses.
Al Summan Metals’ Stainless Steel 904L Flat Bars are widely applied across industries where strong corrosion resistance and mechanical strength are essential. They work well in chemical and petrochemical processing equipment, pumps, valves, heat exchangers, and marine applications. On top of that, they are used in structural components, fasteners, and machinery exposed to acids, chlorides, and other corrosive conditions. Their combination of exceptional durability, accurate dimensions, and resistance to pitting and crevice corrosion ensures a long service life and dependable performance in demanding industrial and engineering applications.
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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