德国UTP 2535 Nb镍基焊条UTP 2535 Nb nickel alloys
Classifications basic coated stick electrode with high carbon content
EN ISO 3581-A Material-No.
EZ 25 35 Nb B 6 2 1.4853
Characteristics and field of use
UTP 2535 Nb is suitable for joining and surfacing of heat resistant CrNi-cast steels (centrifugal-
and mouldcast parts) of the same or of similar nature, such as
1.4848 G–X 40 CrNiSi 25 20
1.4852 G–X 40 NiCrSiNb 35 26
1.4857 G–X 40 NiCrSi 35 26
It is used for operating temperatures up to 1150 °C in carburized low-sulphur combustion
gas, . reforming ovens in petrochemical plants.
Typical analysis in %
C Si Mn Cr Ni Nb Ti Fe
0,4 1,0 1,5 25,0 35,0 1,2 0,1 balance
Mechanical properties of the weld metal
Yield strength RP0,2 Tensile strength Rm Elongation A
MPa MPa %
> 480 > 700 > 8
Welding instruction
Hold stick electrode vertically with a short arc and lowest heat bbbbb. bbbbbb beads are
welded. The interpass temperature of 150 °C should not be exceeded. Re-dry stick electrodes
for 2 – 3 hours at 250 – 300 °C
Welding positions
Current type DC (+)
bbbb of delivery and recommended welding parameters
Electrodes ? mm x L 2,5 x 300 3,2 x 350 4,0 x 400 5,0 x 400
Amperage 50 – 70 70 – 120 100 – 140