Mac Nicro E225Nb
35.45.Nb
Descriptions & Applications:
Extruded flux coated MMA electrode manufactured on a nickel, chromium alloyed core wire. The chemically basic, medium alloyed flux coating provides a metal recovery of some 137% with respect to the core wire but still permits positional welding characteristics. The electrode is designed to weld cast alloys such as Paralloy H46M, Lloyds T75 MA, T80 and ET 45. The design emphasis of these materials and the matching electrode is to ensure optimum resistance to carbonisation and oxidation and temperature up to 1150°C typical hardness HV 260/280.
Additional information:
Fully Austenitic microstructure reinforced with primary eutectic and secondary precipitated carbides.
Typical All Weld Metal Chemical Analysis:
|
C
|
Mn
|
Si
|
S
|
P
|
Cr
|
Ni
|
Mo
|
Nb
|
Ti
|
|
0.44
|
0.9
|
1.2
|
0.011
|
0.011
|
36.0
|
48.0
|
0.10
|
0.90
|
0.02
|
Typical All Weld Metal Mechanical Properties: As Welded
|
Min |
Typical |
|
Ultimate Tensile Strength
|
450 N/mm²
|
740 N/mm² |
| 0.2% Proof Stress |
220 N/mm² |
560 N/mm² |
|
Elongation on 4d
|
3% |
6% |
Current:
DC (+) only
Sizes Available and Recommended Amperages:
|
2.5mm
|
3.2mm
|
4.0mm
|
|
60-85
|
75-120
|
110-160
|
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.
|
|
|
