Nickel Based Alloy
ES Ni 70 A5.11: ENiCrFe-3 / ENISO 14172:2006: E Ni 6082
Description
ES Ni 70 Basic electrode, core wire alloyed, corresponding to DIN EL-NiCr 19 Nb for high-grade welding of nickel base alloys, high-temperature and creep resisting steels, heat resisting and cryogenic materials, low-alloyed problem steels and dissimilar joints. Ferritic-austenitic joints for service temperatures above +300°C or for applications where a post weld heat treatment is required .<br>
High manganese of this weld deposit reduces the possibility of micro fissures but reduces creep strength which limits its usage up to 900°F (482°C) .
Excellent welding characteristics in all positions except vertical-down, easy slag removal, high resistance to porosity, absence of undercuts, high degree of purity. Electrode and weld metal meet highest quality requirements.
Typical Chemical Composition (%)
Si | Mn | Mo | Cr | C | Ni |
0.4 | 5.0 | <1.2 | 19.0 | 0.06 | balance |
Typical Mechanical Properties
Yeild Strength |
Tensile Strength |
Elongation 5x D |
Impact (ISO-V) |
420 N / mm² |
680 N / mm² |
% 40 |
+20°C – 120 j
-196°C – 80 j |
Applications
ES Ni 70 is particularly used for pressure vessel fabrication for -196°C to +650°C, otherwise up to the scaling resistance temperature of +1200°C (S-free atmosphere). Insusceptible to embrittlement, highly resistant to hot cracking, furthermore, C-diffusion at high temperature or during heat treatment of dissimilar joints is largely reduced. Thermal shock resistant, stainless, fully austenitic.<br>
Used for welding nickel-chromium-iron alloys to themselves , Used for dissimilar welding between nickel-chromium-iron alloys to mild steel or stainless steel
Sizes Available & Recomennded Currents
Diam. (mm) |
Length (mm) |
Current (Amperes) |
Arc Voltage |
Wire Feed |
2.50 |
350 |
45 - 80 |
|
|
3.25 |
350 |
70 - 110 |
|
|
4.00 |
350 |
90 - 125 |
|
|
Welding Current
Welding Positions
Hardness (HB)
Special Coating ( performs several functions)
Typical Base Material Grades