TIPS FOR CONVENIENT RFQ
HEAVY BAR / DISC
ROUGH MACHINED SIZES
BLOCK / CUBE / THICK PLATE / FLAT BAR
ROUGH MACHINED SIZES
RING
ROUGH MACHINED SIZES
HEAVY WALL PIPE / HOLLOW BAR
ROUGH MACHINED SIZES
SHAFTS & OTHER SHAPES
GENERAL TECHNICAL INFO
Type (Alloy 20 UNS N08020, W.Nr. 2.4660) |
Available forms are seamless pipe, welded pipe, seamless tube, welded tube, bar, wire, sheet, plate, forgings, pipe fittings and flanges.
Chemical Composition
Element | Min % | Max % |
Carbon | | 0.07 |
Nickel | 32.0 | 38.0 |
Chromium | 19.0 | 21.0 |
Iron | bal | bal |
Silicon | | 1.0 |
Manganese | | 2.0 |
Molybdenum | 2.0 | 3.0 |
Sulfur | | 0.035 |
Copper | 3.0 | 4.0 |
Mechanical Properties
Density : @ Room Temp. 0.292 lb/in.3
Poisson’s Ratio : 0.31
Modulus of Elasticity (Tension) : 28.0 X 103 ksi
Modulus of Rigidity : 11.0 X 103 ksi
Specific Heat : (32/212°F) 0.12 Btu/lb•°F
Electrical Resistivity (RT) : 651 ohm-cir mil/ft
Magnetic Permeability (Annealed) : 1.002 @ 200Oe
Specifications
Sheet | ASTM B463 |
Round Bar/Wire | ASTM B473 |
Pipe | ASTM B464, ASTM B729 |
Tube | ASTM B468 |
Fittings | ASTM B462 |
Forgings | ASTM B366 |
(Alloy 20 UNS N08020, W.Nr. 2.4660, Carpenter® 20, 20CB-3®)
Description
Alloy 20, W.Nr. 2.4660 is an iron-base, austenitic alloy with excellent corrosion resistance to a number of different media and proves to be useful in a number of applications such as flue-gas desulfurization, chemical processing, food processing and storage as well as pharmaceutical applications to name a few. Application of the alloy could result in real cost savings when carefully compared to higher-cost alloys to determine if the necessary resistance is obtained in the chosen media. Applications are limited to a maximum temperature of 1000°F per ASME.
Applications
Sulfuric acid pickling tanks, racks and heating coils
Phosphate coating drums and racks
Heat exchangers
Bubble caps
Process piping
Mixing tanks
Chemical and petroleum process equipment
Common Trade Name
Carpenter® 20, 20CB-3®