Alloy 20 Flanges Manufacturer, Supplier & Exporter in India
Alloy 20 Flanges supplied by Astromet Steel & Engineering are nickel-iron-chromium alloy flanges with excellent resistance to sulfuric acid and chloride attack. These flanges are designed for severe chemical processing environments. They offer superior corrosion resistance and mechanical strength. Alloy 20 is widely used in aggressive chemical services.
The addition of molybdenum and copper enhances resistance to pitting and crevice corrosion. These flanges perform reliably in acidic conditions. They maintain good mechanical properties at moderate temperatures. Their durability ensures long-term service.
Astromet Steel & Engineering supplies Alloy 20 flanges in forged and solution-annealed conditions. Products conform to ASTM and ASME standards. Multiple flange types and pressure classes are available. Each flange is quality tested.
Alloy 20 flanges offer excellent fabrication and welding characteristics. They provide leak-proof connections. Their corrosion resistance reduces maintenance requirements. These flanges are ideal for chemical industries.
Types Of Alloy 20 Flanges
- Alloy 20 Weld Neck Flange
- Alloy 20 Slip On Flange
- Alloy 20 Blind Flange
- Alloy 20 Socket Weld Flange
- Alloy 20 Threaded Flange
- Alloy 20 Forged Flange
- Alloy 20 Orifice Flange
Alloy 20 Flanges Specifications
| Specifications | ASTM B462 / ASME SB462 |
|---|---|
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | 1/2″NB TO 60″NB |
| Class / Pressure : | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
Alloy 20 Flanges Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | EN | AFNOR |
| Alloy 20 | 2.4660 | N08020 | NiCr20CuMo | Z2NCUD31-20AZ |
Alloy 20 Flanges Chemical Composition
| Grade | C | Mn | Si | S | Cu | Ni | Cr | Fe | Mo | P |
| Alloy 20 | 0.07 max | 2 max | 1 max | 0.035 max | 3 – 4 | 32 – 38 | 19 – 21 | 29.85 min* | 2 – 3 | 0.045 max |
Alloy 20 Flanges Mechanical Properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Alloy 20 | 8.1 g/cm3 | 1443 °C (2430 °F) | Psi -80,000, MPa -551 | Psi – 35,000, MPa – 241 | 30 % |
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
Alloy 20 Flanges Usage & Applications
Alloy 20 Flanges are extensively used in chemical processing plants, pharmaceutical equipment, food processing units, acid storage tanks, and heat exchangers.