德国UTP 6170 Co镍基焊条UTP 6170 Co nickel alloys
Classifications basic coated NiCrMo stick electrode
EN ISO 14172 AWS A5.11 Material-No.
E Ni 6117 (NiCr22Co12Mo) ENiCrCoMo-1 (mod.) 2.4628
Characteristics and field of use
UTP 6170 Co is suitable for joining high-temperature and similar nickel-base alloys, heat
resistant austenitic and cast alloys, such as 2.4663 (NiCr23Co12Mo), 2.4851 (NiCr23Fe),
1.4876 (X10 NiCrAlTi 32 21),1.4859 (GX10 NiCrSiNb 32 20). The weld metal is resistant
to hot-cracking and is used for service temperatures up to 1100 °C. Scale-resistance up
to 1100 °C in oxidizing and carburized atmospheres, . gasturbines, ethylene production
plants.
UTP 6170 Cocan be welded in all positions except vertical-down. It has a stable arc. The
seam is finely rippled and notch-free. Easy slag removal.
Preheating temperature should be adjusted to the base material. Post weld heat treatments
can be applied independently of the weld metal.
Typical analysis in %
C Si Mn Cr Mo Ni Co Al Ti Fe
0,06 0,7 0,1 21,0 9,0 balance 11,0 0,7 0,3 1,0
Mechanical properties of the weld metal
Yield strength RP0,2 Tensile strength Rm Elongation A Impact strength KV
MPa MPa % J
> 450 > 700 > 35 > 80
Welding instruction
Hold stick electrode as vertically as possible, keep a short arc. Use bbbbbb bead technique.
Fill end crater carefully. Interpass temperature max. 150 °C. Re-dry stick electrodes for
2 – 3 hours / 250 – 300 °C.
Welding positions
Current type DC (+)
Approvals
TüV (No. 04661)
bbbb of delivery and recommended welding parameters
Electrodes ? mm x L 2,5 x 250 3,2 x 300 4,0 x 350
Amperage 55 – 75 70 – 90 90 – 110