Stainless Steel 904L Flanges Manufacturer, Supplier & Exporter in India
Astromet Steel & Engineering manufactures Stainless Steel 904L Flanges, a high-alloy austenitic stainless steel grade known for exceptional resistance to highly corrosive environments. With high nickel, molybdenum, and copper content, SS 904L flanges offer outstanding protection against sulfuric acid, phosphoric acid, and chloride-induced corrosion. These flanges are specifically designed for extreme chemical processing applications.
SS 904L flanges exhibit excellent mechanical strength, toughness, and resistance to stress corrosion cracking. They maintain stability and performance even under aggressive chemical exposure and high operating temperatures. Astromet Steel & Engineering produces these flanges with precise forging and machining processes, ensuring excellent sealing performance, dimensional accuracy, and long-term reliability.
These flanges are widely used in chemical processing plants, fertilizer industries, pharmaceutical manufacturing, acid handling pipelines, seawater systems, and pollution control equipment. Stainless Steel 904L flanges are the ideal solution for industries that demand superior corrosion resistance and uncompromising quality.
Types Of Stainless Steel 904L Flanges
- Weld Neck Flange
- Slip On Flange
- Blind Flange
- Socket Weld Flange
- Threaded Flange
- Forged Flange
- OrificeFlange
Stainless Steel 904L Flanges Specifications
| Specifications List | ASTM A182 / ASME SA182 |
|---|---|
| Class / Pressure Rating | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Size Chart | 1/2″ (15 NB) to 48″ (1200NB) |
| ASTM Standards | ANSI/ASME B16.5, B16.48, BS4504, B 16.47 Series A & B, BS 10, EN-1092, DIN, etc. |
| Standard Flange | ANSI, ASME, BS, DIN, EN etc. |
SS 904L Flanges Equivalent Grades
| STANDARD | UNS | WNR. | JIS | BS | KS | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 904L | N08904 | 1.4539 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
Stainless Steel 904L Flanges Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| SS 904L | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 | – |
904L Stainless Steel Flanges Mechanical Properties
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SS 904L | 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
Why Choose Astromet Steel & Engineering?
This advanced resistance to intergranular corrosion because of the
- Consistent quality & competitive pricing
- Ready stock & custom fabrication
- International standard compliance
- On-time delivery worldwide
- Complete documentation & certification
Stainless Steel 904L Flanges Usage & Applications
SS 904L flanges are extensively used in food processing, dairy plants, chemical pipelines, water treatment plants, oil & gas industries, heat exchangers, and pressure vessels due to their hygienic properties and corrosion resistance.