Alloy 20 Flanges Specifications
Standard |
ASTM, ASME Flanges, ANSI Flanges, DIN Flanges, EN Flanges, BS Flanges etc. |
Dimension Std. |
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
Grades |
Alloy 20 (UNS N08020), 2.4660 |
Specification |
ASTM B 564 / ASME SB 564 |
Size |
½” NB – 48” NB |
Class |
150#, 300#, 600#, 900#, 1500#, 2500#, etc. |
Pressure |
DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, etc. |
Types of Alloy 20 Flanges
Alloy 20 Blind Flanges |
Alloy 20 Reducing Flanges |
Alloy 20 Ring Type Flanges |
Alloy 20 Spectacle Flanges |
Alloy 20 Weld Neck Flanges |
Alloy 20 High Hub Flanges |
Alloy 20 Threaded Flanges |
Alloy 20 Lap Joint Flanges |
Alloy 20 Long weld Neck Flanges |
Alloy 20 Slip-On Flanges |
Alloy 20 Socket Weld Flanges |
Alloy 20 Orifice Flanges |
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 |
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 % |
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