德国UTP 759 Kb镍基焊条UTP 759 Kb nickel alloys
Classifications basic coated NiCrMo stick electrode
EN ISO 14172 AWS A5.11 Material-No.
E Ni 6059 (NiCr23Mo16) E NiCrMo-13 2.4609
Characteristics and field of use
UTP 759 Kb is employed primarily for welding components in environmental plants and
plants for chemical processes with highly corrosive media. Joint welding of matching base
materials as Material-No. 2.4605 or similar matching materials as material No 2.4602 NiCr-
21Mo14W. Joint welding of these materials with low-alloyed steels. Cladding0n low-alloyed
steels.
In addition to its good resistance to contaminated oxidating mineral acids, acetic acids and
acetic anhydrides, hot contaminated sulphuric – and phosphoric acid, UTP 759 Kb has an
excellent resistance against pitting and crevice corrosion. The special composition of the
coating extensively prevents the precipitation of intermetallic phases.
UTP 759 Kb can be welded in all positions except vertical down. Stable arc, easy slag
removal.
Typical analysis in %
C Si Mn Cr Mo Ni Fe
< 0,02 < 0,2 0,5 22,5 15,5 balance 1,0
Mechanical properties of the weld metal
Yield strength RP0,2 Tensile strength Rm Elongation A Impact strength KV
MPa MPa % J
> 450 > 720 > 30 > 60
Welding instruction
Opening angle of the prepared seam approx. 70 °C, root gap approx. 2 mm. Weld stick
electrode with slight tilt and with a short arc. bbbbbb beads are welded. The interpass temperature
of 150 °C and a max. weaving bbbbb 2,5 x diameter of the stick electrode core wire
should not be exceeded. Re-dry the stick electrodes 2 – 3 hours at 250 – 300 °C before use
and weld them out of a warm stick electrode carrier.
Welding positions
Current type DC (+)
Approvals
TüV (No. 06687)
bbbb of delivery and recommended welding parameters
Electrodes ? mm x L 2,5 x 250 3,2 x 300 4,0 x 350
Amperage 50 – 70 70 – 100 90 – 130