Mac Nicro E218
AWS E385-16
Descriptions & Applications:
Designed to weld a number of proprietary alloys of the 20Cr, 25Ni, 4.5Mo, Cu types which provide excellent resistance to corrosion by both organic and inorganic acids excluding attack by concentrated nitric acid. Such steels normally used in the form of plate, pipe and tubing include Uddelholm 904L, Sandvik 2RK65, Avesta 254SLX, Uranus B6 and B6M and APV Paralloy 5NLC. This electrode is also suited for welding copper free versions of these steels. Most of these steels are used in the manufacture of plant manufacturing fertilisers and resistance to crevice corrosion and chloride initiated stress corrosion cracking.
Typical All Weld Metal Chemical Analysis:
|
C
|
Mn
|
P
|
S
|
Si
|
Ni
|
Cr
|
Mo
|
Cu
|
Nb
|
N
|
|
0.03
|
2.0
|
0.018
|
0.020
|
0.35
|
25.0
|
21.0
|
4.5
|
1.8
|
0.4
|
0.10
|
Typical All Weld Metal Mechanical Properties: As Welded
|
Ultimate Tensile Strength
|
630 N/mm²
|
|
0.2% Proof Stress
|
410 N/mm²
|
| Elongation |
40% |
| Reduction of Area |
50% |
| Hardness |
190 HV |
Current:
AC (Min 70 OCV) DC (+/-)
Sizes Available and Recommended Amperages:
|
2.5mm
|
3.2mm
|
4.0mm
|
| 60-90 |
80-110 |
130-160 |
Storage:
If allowed to become damp the electrodes should be re-dried for one hour at 150°C before use.
|
|
