STRIP - Alloy 20 Stainless Steel
UNS N08020
W.Nr 2.4660
DESCRIPTION
Alloy 20 is a nickel-iron-chromium alloy with excellent corrosion resistance in acidic environments including phosphoric, sulfuric, and nitric acids. Alloying additions also provide resistance to stress corrosion cracking in chloride rich environments. Alloy 20 can be fabricated and welded through most conventional processes while maintaining resistance to pitting and crevice corrosion.
Applicable Specifications
Strip and Foil:
ASTM A240, ASTM B463, NACE MR0175/ISO 15156, NACE MR0103
Applications
Extraction columns, Heat exchangers, Mixing tanks, Pipes, Pumps, Valves, Food processing equipment, Springs
Industries Supplied
Chemical Processing, Food Processing, Oil & Gas
Nominal Composition
C: 0.07 max
Mn: 2.00 max
Si: 1.00 max
P: 0.045 max
S: 0.035 max
Cr: 19.0 – 21.0
Ni: 32.0 – 38.0
Mo: 2.00 – 3.00
Cu: 3.00 – 4.00
Cb + Ta: 8*C-1.0 min
Fe: Balance
Physical Properties
Density:
0.292 lb/in3, (8.08 g/cm3)
Modulus of Elasticity (E):
At 70°F (20°C): 28.0 x 103 ksi (193 GPa)
Modulus of Rigidity (G)
At 70°F (20°C): 11.0 x 103 ksi (76 GPa)
Coefficient of Expansion:
8.2 µin/in.-°F (70-212°F)
14.7 µm/m-°C (25-100°C)
Electrical Resistivity:
53.5 µohm-in, (135.9 µohm-cm)
Thermal Conductivity:
85 Btu-in/ft2hr-°F
12.3 W/m-°C
Typical Mechanical Properties
Annealed
- Heat Treatment: 1650-1830°F (900-1000°C)
- Tensile Strength: 80 – 110 ksi (550-760MPa)
- Suggested Operating Conditions: up to 930°F (500°C)
For further information Contact:
CONTACT US
Phone: 1.888.843.2350
Elgiloy Specialty Metals – Strip Products
1565 Fleetwood Dr
Elgin, IL 60123 USA
Limitation of Liability and Disclaimer of Warranty:
- The content in these data sheets is provided primarily by third-party melting mills and is provided for reference only. It is not intended for engineering or design.
- Applications may be discussed, however, Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, does not recommend or endorse any material for any particular end use or application.
- The data included in this data sheet are typical values and may vary.
- Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, makes no representations or warranties, express or implied, as to the accuracy, completeness, condition, suitability, performance, fitness for a particular purpose, or merchantability of any information contained in any data sheet.
In no event will Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, be liable for any damages whatsoever arising from the use of the information included in the data sheets.
