Exaton 2594
2594 is used for welding of 2507 and other super-duplex steels. The grade is characterized by excellent resistance to stress corrosion in chloride-bearing environments and excellent resistance to pitting and crevice corrosion. 2594 can also be used for welding 2205 and corresponding duplex steels when the highest possible corrosion resistance is required. It is used for MIG/MAG welding.
Typical Charpy V-Notch Properties
| Impact Value | Testing Temperature | |||
| as welded | ||||
| 170 J (126 ft-lb) | -40 degC (-40 degF) | |||
| 150 J (111 ft-lb) | -46 degC (-51 degF) | |||
| 140 J (104 ft-lb) | -50 degC (-58 degF) | |||
| 210 J (155 ft-lb) | 20 degC (68 degF) | |||
Typical Tensile Properties
| Condition | Elongation | Tensile Strength | Yield Strength |
| As Welded | 25 % | 850 MPa (123 ksi) | 650 MPa (94 ksi) |
Recommended Welding Parameters
| Current | Voltage | Wire Diameter | Wire Feed Speed | |
| 40-120 A | 15-19 V | 0.8 mm (0.030 in.) | 4.0-8.0 m/min (157-315 in./min) | |
| 60-220 A | 15-28 V | 1.0 mm (0.040 in.) | 4.0-12.0 m/min (157-472 in./min) | |
| 150-260 A | 24-29 V | 1.2 mm (0.047 in.) | 3.0-10.0 m/min (118-394 in./min) | |
| 230-350 A | 25-30 V | 1.6 mm (1/16 in.) | 3.0-5.0 m/min (118-197 in./min) | |
Classifications
| Wire Electrode |
EN ISO 14343-A : G 25 9 4 N L SFA/AWS A5.9 : ER2594 |
Approvals
| Approvals |
ABS ER 2594 CE EN 13479 DNV-GL Duplex steel* |
| Approvals are based on factory location. Please contact ESAB for more information. |
Consumable Characteristics
| Alloy Type | Austenitic-ferritic (duplex) with approx. 50 FN ferrite - 25% Cr - 10% Ni - 4% Mo - Low C |
Typical Weld Metal Analysis %
| Typical Weld Metal Analysis % | ||||||||||||||||
| C | Co | Cr | Cu | FN WRC-92 | Mn | Mo | N | Nb | Ni | P | PRE | S | Si | Ti | V | W |
| 0.01 % | - | 25 % | 0.1 % | 52 % | 0.4 % | 3.9 % | 0.24 % | 0.01 % | 9.5 % | 0.02 % | 41.7 % | 0.001 % | 0.4 % | - | - | 0.01 % |
| Typical Wire Composition % | ||||||||||||||||
| 0.012 % | 0.04 % | 25 % | 0.07 % | 50 % | 0.4 % | 4 % | 0.25 % | 0.01 % | 9.5 % | 0.015 % | 42 % | 0.0005 % | 0.3 % | 0.003 % | 0.05 % | 0.01 % |
*For MIG welding of ferritic-austenitic stainless steels
Part Numbers and Accessories
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