Agglomerated Calcium-Silicate type flux for welding general structural steels, pressure vessel steels, pipe steels as well as fine grain structural steels.It causes a relatively high silicon pick-up and when using wire electrodes 50-11, 50-12, 50-15, also a manganese pick-up. The neutral point for manganese is suited at approximately 2.5%, thus the flux being able to be used with low manganese electrode wires. AMA-OP119 is particularly suited for twin-wire, tandem and multi-wire welding at relatively high speed. It is likewise suited for welding from both sides in one pass. For increased weld metal toughness, wire electrodes containing molybdenum 50-14 should be preferably used. AMA-OP119 can be used on either DC or AC up to approximately 1200A (in single wire welding).Slag removal is easy. The resulting slag is short, i.e., girth seams on work pieces having a small diameter can be welded without the danger of the slag running off.
Basicity to boniszewskii: ~1.0
Metallurgical behavior: Pick-up and burn-off the alloying elements Si and Mn as a function of the alloy content
of the wire electrode, DVS Merkblatt 0907, part 1
all-weld metal analysis( typical values ):
Mechanical properties of all-weld metal (typical values ):
Mechanical properties of welded joints( typical values ):
For welding from both side in one pass, especially in multi-wire welding 50-14 wire electrode should be used because of the fine-grain formation caused by molybdenum.
|aproval: LRS، GL|