Mac Nicro E224Mn
21.33Mn
Descriptions & Applications:
Extruded flux coated MMA electrode manufactured on a closely matching core wire. The chemically basic flux ensures the metallurgical integrity of the fully austenitic weld metal and low residuals of non-metallic impurities. It may be used to weld similarly alloyed base materials such as Inconel 800 and 800H where the higher than normal manganese in the weld will significantly reduce the incidence of solidification cracking on heavily restrained weldments. Proprietary alloys that may be welded include Lloyds T52, Firth Vickers Vicro 8 and Paralloy CR 32 W.
Typical All Weld Metal Chemical Analysis:
|
C
|
Mn
|
Si
|
S
|
P
|
Cr
|
Ni
|
Mo
|
Nb
|
|
0.1
|
4.5
|
0.3
|
0.01
|
0.009
|
21
|
32
|
0.2
|
1.2
|
Typical All Weld Metal Mechanical Properties: As Welded
|
Min |
Typical |
|
Ultimate Tensile Strength
|
550 N/mm²
|
620 N/mm² |
| 0.2% Proof Stress |
220 N/mm² |
410 N/mm² |
|
Elongation on 4d
|
30% |
35% |
| Reduction of Area |
|
50% |
| Impact energy +20°C |
|
55 joules |
Current:
DC (+)
Sizes Available and Recommended Amperages:
|
2.5mm
|
3.2mm
|
4.0mm
|
|
60-85
|
85-120
|
110-165
|
Storage:
If allowed to become damp the electrodes should be re-dried for one hour at 250°C before use.
|
|
