Alloy 20
Everything You Need to Know About Nickel Alloy 20
Alloy 20 is a superalloy, occasionally referred to as Carpenter 20, which essentially syndicates stainless steel (iron and chromium) with nickel. In laymen’s terms, alloy 20 mixes physical integrity and corrosion resistance with a high level of malleability. Fortune Ferroment Inc. is an alloy 20 supplier that supplies hard-to-find materials to constructers worldwide. Our team finds the highest quality field alloys and ships them across North America, Europe, and Asia.
DESIGN FEATURES
- Superior resistance to stress-corrosion furious in boiling 20 to 40% sulfuric acid.
- Excellent overall corrosion resistance to sulfuric acid.
- Outstanding resistance to chloride stress corrosion cracking.
- Exceptional mechanical properties and fabricability.
- Minimal carbide precipitation during welding.
Chemical Properties of Alloy 20:
| TYPE | C | Cr | Cu | Fe | Mn | Mo | Ni | P | Si | S | Nb (Cb) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Alloy 20 UNS N08020 |
0.07 max |
min: 19.00 max: 21.00 |
min: 3.00 max: 4.00 |
Balance | 2.00 max |
min: 2.00 max: 3.00 |
min: 32.00 max: 38.00 |
0.045 max |
1.00 max |
0.035 max |
8 XC min 1.00 max |
Mechanical Properties of Alloy 20:
| Stabilized-Annealed Condition | ||||||
|---|---|---|---|---|---|---|
| Product Form | Tensile Strength, ksi (min) |
Yield Strength, 0.2% offset ksi (min) |
Elongation % (min) | Reduction of Area % (min) |
Hardness Brinell (max) |
Hardness Rockwell B (max) |
| Plate, Sheet | 80 | 35 | 30 | — | 217 | 95 |
| Bar | 80 | 35 | 30 | 50 | — | — |
Physical Properties of Alloy 20:
| Density | Specific Gravity | Specific Heat at 32 to 212°F |
Electrical Resistivity at 68°F |
Poissons Ratio | Magnetic Permeability at 68°F |
Modulus of Elasticity at 68°F |
|---|---|---|---|---|---|---|
| 0.292 lbs/in3 | 8.08 | 0.12 BTU/lb/°F | 644 ohm-cir mil/ft | 0.31 | 1.002 Mu | 29.3 x 106 psi |