ALLOY 20 | UNS N08020
Description
Alloy 20 is a nickel-iron-chromium austenitic alloy that was developed for maximum resistance to acid attack, specifically sulfuric acid. This superalloy has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric, and nitric acids.
Specifications Stocked
| Form Name | Size Range | Schedules | Specifications |
|---|---|---|---|
| Welded Pipe | 6″ – 12″ | 10S, 40S | ASTM B464 / ASME SB464 |
| Seamless Pipe | 1/2″ – 8″ | 10S, 40S, 80S, 160, XXH | ASTM B729 / ASME SB729 |
| Buttweld Fittings | 1/2″ – 12″ | 10S, 40S, 80S, 160 | ASTM B366 / ASME SB366 |
| Flanges | 1/2″ – 12″ | 150#, 300#, 600# | ASTM B462 / ASME SB462 |
| Pressure Fittings | 1/2″ – 2″ | 3000# THRD/SW | ASTM B462 / ASME SB462 |
Limiting Chemical Composition %
|
C |
Cb |
Cr |
Cu |
Mn |
Mo |
Ni |
P |
S |
Si |
Ta |
|---|---|---|---|---|---|---|---|---|---|---|
|
MAX 0.07 |
8 Times Carbon 1.00 |
19.0 – 21.0 |
3.0 – 4.0 |
MAX |
2.0 – 3.0 |
32.0 – 38.0 |
0.045 |
MAX\0.035 |
MAX |
8 Times Carbon 1.00 |
Typical Industrial Applications
- Chemical and allied industries
- Food and dye production
- Heat exchangers
- S02 scrubbers and other severe environments
- Tanks
Tensile Requirements
|
Tensile Strength |
Yield Strength |
|---|---|
|
80 |
35 |
NOTE: The information and data in this product data sheet have been compiled from a variety of sources, and should be considered as a general guide only. The information and data included are accurate to the best of our knowledge, and may be revised at any time without notice. Energy Metals Inc. assumes no responsibility for the accuracy of this information.