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Alloy 20/20Cb-3 (UNS N08020)
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Product Description
*Similar Grade
GB | Trademark | UNS | DIN EN/DIN | W-Nr. | ГОСТ |
GH1015 NS1403 NS143 | Carpenter 20Cb-3 Incoloy 20 | N08020 | NiCr20CuMo | 2.4660 | ХН28ВМАБ |
*Product Forms
Pipe, Tube, Sheet, Strip, Plate, Round Bar, Flat Bar, Forgings, Hexagon, Wire
*Brief
Alloy 20 (20Cb-3) is an austenitic stainless steel which was designed for maximum resistance to acid attacks and as such has excellent resistance to hot sulfuric acid. Alloy 20 with additions of copper and molybdenum. It also contains niobium for stabilization against sensitization and resultant intergranular corrosion. Alloy 20 is also resistant to intergranular corrosion in the as-welded condition. At 33% nickel, Alloy 20 has practical immunity to chloride stress corrosion cracking. Alloy 20 is used is a wide variety of applications from Sulfuric acid pickling tanks, racks and heating coil, Heat Exchangers, Process piping, Chemical and petroleum process equipment etc.
*Chemical Composition,%
% | Ni | Cr | Fe | C | Mn | Si | P | S | Cu | Mo | Nb+Ta |
Min | 32.0 | 19.0 | Rest | 3.0 | 2.0 | 8c | |||||
Max | 38.0 | 21.0 | 0.07 | 2.00 | 1.00 | 0.045 | 0.035 | 4.0 | 3.0 | 1.0 |
*Typical Physical & Mechanical Property(Solution Annealed)
Density | Melting point | Tensile strength, MPa | Yield strength, MPa | Elongation,% |
8.08 g/cm3 | 1405-1425℃ | 620 | 300 | 40 |
*Specification
Rod, Bar, Wire, Forgings | ASTM B462, ASTM B472/ASME SB472, ASTM B473/ASME SB473, ISO 9723/9724/9725, DIN 17752-17754 |
Plate, Sheet, Strip | ASTM A240/ASME SA240, ASTM A480/ASME SA480, ASTM B463/ASME SB463, ASTM B906/ASME SB906, DIN 17750 |
Pipe, Tube | ASTM B729/ASME SB729, ASTM B829/ASME SB829, ASTM B468/ASME SB468, ASTM B751/ASME SB751, ASTM B464/ASME SB464, ASTM B775/ASME SB775, ASTM B474/ASME SB474, ISO 6207, DIN 17751 |
Others | ASTM B366/ASME SB366(Fittings), DIN 17744, ASTM B471/ASME SB471, ASTM B475/ASME SB475 |
*Feature
1. Excellent resistance to hot sulfuric acid
2. Resistant to intergranular corrosion in the as-welded condition
3. Chloride stress corrosion cracking resistance
*Application
1. Sulfuric acid pickling tanks, racks and heating coils
2. Phosphate coating drums and racks
3. Heat exchangers
4. Bubble caps
5. Process piping
6. Mixing tanks
7. Chemical and petroleum process equipment
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| Precision Alloy | High Performance Alloy | Heating Alloy | Special Welding Wire |
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