Mac Nicro E222Nb
25.35 H Nb B
Descriptions & Applications:
Manual Metal Arc electrode manufactured on a predominantly alloyed core wire with a concentrically extruded chemically basic flux coating. Easy to strike electrode producing porosity free deposit and good slag detachability.
Mac Nicro E222Nb is designed for welding the following materials.
Matching Alloys Nb-Free Alloys
ASTM A297 ‘HP40Cb' HP or HP40
DIN 1.4852 1.4852
DIN 1.4853 (Wrought)
Lake & Elliot Paramount H39W H39
Lloyds (Burton) Thermalloy T64 T63
Duraloy 64 Cronite HR33
Also suitable for high carbon 18Cr-37Ni-Nb alloys such as DIN 1.4849.
Typical All Weld Metal Chemical Analysis:
|
C
|
Mn
|
Si
|
P
|
S
|
Ni
|
Cr
|
Nb
|
Mo
|
Ti
|
|
0.40
|
1.5
|
0.50
|
0.015
|
0.01
|
35
|
26
|
1.2
|
0.2
|
0.05
|
Typical All Weld Metal Mechanical Properties: As Welded
|
Ultimate Tensile Strength
|
740 N/mm²
|
| 0.2% Proof Stress |
550 N/mm² |
|
Elongation on 4d
|
15% |
| Reduction of Area |
15% |
| H.V. 20 |
245 |
Current:
DC (+) only
Sizes Available and Recommended Amperages:
|
2.5mm
|
3.2mm
|
4.0mm
|
|
60-80
|
70-110
|
90-150
|
Storage:
If allowed to become damp the electrodes should be re-dried for one hour at 180°C before use. If allowed to become wet redry at 320°C for one hour.
|
|
|
