Description: AFM ER309 is used to weld alloy 309. Occasionally, it is used to weld Type 304
and similar base metals where severe corrosion conditions exist requiring higher
alloy weld metal. It is also used in dissimilar metal welds, such as joining
Type 304 to carbon steel, welding the clad side of Type 304 clad steels, and
applying stainless steel sheet linings to carbon steel shells.
Chemical Composition Requirements for Undiluted Weld Metal: |
(C) |
Carbon |
0.12 |
| (Cr) |
Chromium |
23.0 to 25.0 |
| (Cu) |
Copper |
0.75 |
| (Mn) |
Manganese |
1.0 to 2.5 |
| (Mo) |
Molybtenum |
0.75 |
| (Ni) |
Nickel |
12.0 to 14.0 |
(P) |
Phosphorus |
0.03 |
(S) |
Sulfer |
0.03 |
| (Si) |
Silicon |
0.30 to 0.65 |
All values are considered maximum, unless other-wise noted.
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