Mac Stain E120Cu
25.6.2.Cu.L.R.
Descriptions & Applications:
Designed on a highly alloyed core wire with a high purity lime/rutile flux coating that deposits high chromium duplex weld metal with excellent resistance to corrosion and erosion.
Mac Stain E120Cu is designed to weld alloys in cast condition such as ASTM A351, A744, CD4MCu, UNS J93370, ASTM A240, BS3146 ANE 21.
Propriety alloys include Uranus 55 and Ferralium. After welding the weldment is water or air quenched from 1100°C and this solution heat treatment ensures both weld and casting have similar microstructures e.g. austenite with 30% to 40% delta ferrite.
Typical All Weld Metal Chemical Analysis:
|
C
|
Mn
|
Si
|
S
|
P
|
Cr
|
Ni
|
Mo
|
Cu
|
N²
|
| 0.03 |
1.2 |
0.4 |
0.02 |
0.02 |
26.0 |
7.5
|
3.5 |
2.0 |
0.16 |
Typical All Weld Metal Mechanical Properties: As Welded
|
Min |
Typical |
Solution H/T 1100°C |
|
Ultimate Tensile Strength
|
700
|
960
|
780 N/mm²
|
|
0.2% Proof Stress
|
|
750
|
590 N/mm²
|
|
Elongation
|
15%
|
22%
|
|
| Reduction of Area |
28%
|
48%
|
|
|
Impact energy -50°C
|
48J
|
50J
|
|
Current:
AC/DC (AC OCV 70 min)
Sizes Available and Recommended Amperages:
| 2.5mm |
3.2mm |
4.0mm |
5.0mm |
| 45-70 |
70-110 |
110-140 |
140-180 |
Storage:
If allowed to become damp the electrodes should be re-dried for one hour at 250°C before use. 
|
|
