Description: AFM 62 is used for welding nickel-chromium-iron alloy (600) to itself using the
GTAW, GMAW, SAW, and PAW processes. The higher niobium content of AFM 62 is
intended to minimize cracking where high welding stresses are encountered, as in
thick-section base metal up to 2Ħħ.
Chemical Composition Requirements for Undiluted Weld Metal: |
(C) |
Carbon |
0.08 |
| (Co) |
Cobalt |
(a) |
| (Cr) |
Chromium |
14.0 to 17.0 |
| (Cu) |
Copper |
0.50 |
| (Fe) |
Iron |
6.0 to 10.0 |
| (Mn) |
Manganese |
1.0 |
| (Ni) |
Nickel |
70.0 min* |
| (Nb + Ta) |
Niobium & Tantalum |
1.5 to 3.0 |
(P) |
Phosphorus |
0.03 |
(S) |
Sulfer |
0.015 |
| (Si) |
Silicon |
0.35 |
|
All Other |
0.50 |
* Includes incidental cobalt
a. Co is 0.12 maximum when specified by the purchaser.
All values are considered maximum, unless other-wise noted.
Typical As-Welded Tensile Strengths (min.):
- Tensile Strength, psi - 80,000
- MPa - 550
- Elongation, (%) 30
Standard Sizes: 36Ħħ TIG-1/16 (1.6), 3/32 (2.4), 1/8 (3.2), & 5/32 (4.0) 30# spools-.035 (1.0), .045 (1.2), & 1/16 (1.6) |
