Alloy 20 Flanges
Ratnam Steel is a manufacturer, supplier, exporter of a huge variety of products. We are an esteemed company that is pretty much engaged in giving a widespread variety of Alloy 20 Flanges. Being ISO certified company and producing huge range of products, we have a huge number of domestic as well as international clients. We have supplied Alloy 20 Flanges to clients in India as well as across the globe in countries such as US, UK, Italy, Germany, Australia etc. We offer Alloy 20 Flanges at economical price to our consumers. These products have a widespread application in number of industries like sugar, nuclear, marine, defence, fabrication etc.
Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | AFNOR | EN |
| Alloy 20 | 2.4660 | N08020 | Z2NCUD31-20AZ | NiCr20CuMo |
Specification
Standards : ASTM, ASME Flanges, ANSI Flanges, DIN Flanges, EN Flanges, BS Flanges etc.
Dimensions : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Specifications : ASTM B 564 / ASME SB 564
Grade : Alloy 20 – UNS N08020
Size : 1/2″NB TO 60″NB
Class : 150#, 300#, 600#, 900#, 1500#, 2500#.
Pressure : DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160.
Chemical Composition
| Element | Alloy 20 |
| Ni | 32 – 38 |
| Fe | Bal |
| C | 0.02 max |
| Mn | 1 – 2 |
| Si | 0.7 max |
| Cu | 3 – 4 |
| Cr | 19 – 21 |
| Mo | 2 – 3 |
| S | 0.005 max |
| P | 0.02 max |
| Nb | 0.1 – 0.3 |
Physical & Mechanical Properties
| Element | Alloy 20 |
| Density | 8.1 g/cm3 |
| Melting Point | 1443 °C (2430 °F) |
| Tensile Strength | Psi -80,000, MPa -551 |
| Yield Strength (0.2%Offset) | Psi – 35,000, MPa – 241 |
| Elongation | 30 % |