Exaton 25.22.2.LMnB is a chromium-nickel-molybdenum covered electrode with basic coating for welding of austenitic stainless steels for example, Sandvik 2RE69 and Sandvik 3R60 U.G 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. Exaton 25.22.2.LMn is used for welding of Sandvik 2RE69 and Sandvik 3R60 U.G. 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
|Impact Value||52 ft-lb|
|Impact Value||70 J|
|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)|
|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|
SFA/AWS A5.4 : (E310Mo-15)
EN ISO 3581-A : E 25 22 2 N L B 12
|Alloy Type||25Cr 22Ni 2Mo N|
|Ferrite Content||FN 0|
Typical Weld Metal Analysis %
|Typical Weld Metal Analysis %|
|<=0.04 %||25 %||0.05 %||0 %||4.5 %||2.1 %||0.14 %||22 %||<=0.020 %||<=0.020 %||0.4 %|
How to purchase Exaton 25.22.2.LMnB
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