MAC Nicro E203B
AWS E Ni Cr Fe 3
Descriptions & Applications:
Designed on a highly alloyed core wire with a high purity chemically basic flux to facilitate all positional welding including on site applications.
A versatile electrode with superior welding characteristics for welding almost any nickel chrome alloy for service in both cryogenic and high temperature conditions, with the emphasis on the cryogenic side. For joining and overlaying Inconel 600 and 601 type alloys, Incoloy 800 and 800H, involved in temperatures up to 540° C and for dissimilar applications such as Incoloy 600 and 800H to carbon or stainless steels; Nickel 200 or Monel 400 and Nimonic 75. Also suitable for welding 3%, 5% nickel semi cryogenic steels and 9% nickel steels for full cryogenic conditions: Used extensively in the nuclear, chemical and petrochemical industries.
Typical All Weld Metal Chemical Analysis:
|
C
|
Mn
|
Fe
|
P
|
S |
Si |
Ni |
Cr |
Nb |
Mo |
Ti |
| 0.02 |
7.50 |
7.00 |
0.009 |
0.005 |
0.62 |
65 |
15 |
1.50 |
2.00 |
0.11 |
Typical All Weld Metal Mechanical Properties: As Welded
|
Ultimate Tensile Strength
|
650 N/mm²
|
| Elongation on 4d |
40% |
| 0.2% Proof Stress |
390 N/mm² |
| Reduction of Area |
45% |
| Impact Energy -20°C |
150 J |
Current:
AC (Min 70 OCV) DC (+/-)
Sizes Available and Recommended Amperages:
| 2.5mm |
3.2mm |
4.0mm |
5.0mm |
| 50-70 |
90-110 |
120-140 |
140-190 |
Storage:
If allowed to become damp the electrodes should be re-dried for one hour at 150° C before use.
|
|
