A SUPER DUPLEX ELECTRODE FOR WELDING ALLOYS OF SIMILAR COMPOSITION.
Gribinox 25.9.4 electrode is designed to match similar alloys The electrode gives matching strength and corrosion resistance in the solution treated condition but can also be used in the as-welded condition. Nitrogen and nickel contents are controlled to give a balanced duplex structure to minimize the risk of cracking, particularly in highly restrained welds.
Pumps and valves, corrosion/ wear resisting parts and process equipment for use in offshore oil and gas industries, pulp, paper and textile industries, and chemical and petrochemical plant.
MICROSTRUCTURE : In the solution treated condition the microstructure is duplex with about 30-60% ferrite dependent upon dilution.
Interpass temperature : 100°C max
Heat m-put : 0.5-1.5kJ/mm
Scaling temperature : Approx 850°C(air)
Very good resistance to pitting and stress corrosion cracking in Chloride containing environments. Pitting resistance in accordance with ASTM G-48A better than 40°C.
|0.04 max||24.0-27.0||8.0-10.5||0.5-1.5||1.0 max||0.03 max||0.035 max||3.5-4.5||0.75 max||0.20-0.30|
|Ultimate Tensile Strength MPa||Yield Stress MPa||Elongation (%) (L=4D)||Charpy V-notch Impact Strength|
|SIZE (mm)||LENGTH (mm)||CURRENT CONDITION AC(OCV:70V)/DC(+)(AMPS)||PACKING PER BOX, KG||WEIGHT 1000 PCS, KG|
|2.50||350||60-90||2 X 10 = 20||20.50|
|3.15/3.20||350||70-120||2 X 10 = 20||33.0|
|4.00||350||100-155||2 X 10 = 20||52.0|