Exaton 25.22.2.LMn-15
25.22.2.LMn-15 is a chromium-nickel-molybdenum covered electrode with basic coating for welding of austenitic stainless steels for example, UNS S31050, 1.4466 or UNS S31603, 1.4435. used in the production of ammonium carbamate, nitric acid and inorganic acids. It is also used for surfacing on low alloyed steels. The electrode combines good welding properties such as arc stability, low spatter and self peeling slag with very low impurity levels. The fully austenitic weld metal (maximum 0.6% ferrite) is very resistant to hot cracking. 25.22.2.LMn-15 is used for welding UNS S31050, 1.4466 or UNS S31603, 1.4435. urea grade materials. But it can also be used for the following types: ISO 1.4466, 1.4335, 1.4435, 1.4436, 1.4477, 1.4578 and 1.4585; UNS S31050, S31002, S31603 and S31600.
Typical Charpy V-Notch Properties
| As Welded | |
| Impact Value | 52 ft-lb |
| Impact Value | 70 J |
| Shielding Gas | ISO |
| Testing Temperature | 68 °F |
| Testing Temperature | 20 °C |
Typical Tensile Properties
| Condition | Elongation | Shielding Gas | Tensile Strength | Yield Strength |
| As Welded | 30 % | ISO | 600 MPa (87 ksi) | 420 MPa (61 ksi) |
Deposition Data
| Current | Deposition Rate @ 90% I max | Diameter | Deposition Efficiency (%) | Number of electrodes/kg weld metal | |
| 60-80 A | 0.0 kg/h (0.0 lb/h) | 2.5 x 300.0 mm (0.098 x 11.8 in.) | |||
| 80-110 A | 55 sec | 1.7 kg/h (3.7 lb/h) | 3.2 x 350.0 mm (1/8 x 13.8 in.) | 64 % | 31 |
| 110-140 A | 75 sec | 2.3 kg/h (5.1 lb/h) | 4.0 x 350.0 mm (5/32 x 13.8 in.) | 53 % | 15 |
Classifications
| Classifications |
SFA/AWS A5.4 : (E310Mo-15) EN ISO 3581-A : E 25 22 2 N L B 12 |
Consumable Characteristics
| Alloy Type | 25Cr 22Ni 2Mo N |
| Coating Type | Basic |
| Ferrite Content | FN 0 |
| Welding Current | DC+ |
Typical Weld Metal Analysis %
| Typical Weld Metal Analysis % | ||||||||||||||
| C | Cr | Cu | FN WRC-92 | Mn | Mo | N | Ni | P | S | Si | ||||
| <=0.04 % | 25 % | 0.05 % | 0 % | 4.5 % | 2.1 % | 0.14 % | 22 % | <=0.020 % | <=0.020 % | 0.4 % | ||||
Part Numbers and Accessories
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