Exaton 309LNb
309LNb is a niobium-stabilized overalloyed filler metal suitable for overlay welding of carbon and low alloy steels, where a type 347 of overlay is required. It is used for MIG/MAG welding.
Documents
Typical Charpy V-Notch Properties
| Impact Value | Testing Temperature | |||
| as welded | ||||
| 15 J (11 ft-lb) | -196 degC (-321 degF) | |||
| 100 J (74 ft-lb) | -60 degC (-76 degF) | |||
| 130 J (96 ft-lb) | 20 degC (68 degF) | |||
Typical Tensile Properties
| Condition | Elongation | Tensile Strength | Yield Strength |
| As Welded | 29 % | 670 MPa (97 ksi) | 500 MPa (73 ksi) |
Recommended Welding Parameters
| Current | Voltage | Wire Diameter | Wire Feed Speed | |
| 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) | |
Classifications
| Wire Electrode |
SFA/AWS A5.9 : ER 309LNb EN ISO 14343-A : G 23 12 Nb |
Consumable Characteristics
| Alloy Type | Austenitic (with approx. 15 % ferrite) 24 % Cr - 13 % Ni - Low C - Nb |
Typical Weld Metal Analysis %
| Typical Wire Composition % | ||||||||||||||
| C | Cr | Mn | Nb | Ni | P | S | Si | |||||||
| <=0.020 % | 24 % | 2 % | 0.8 % | 12.5 % | <=0.020 % | <=0.015 % | 0.3 % | |||||||
Part Numbers and Accessories
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