Description
FILLER METAL Alloy 99 is used for TIG and MIG welding of cast iron. This wire is extensively employed to repair gray iron castings. It can also be used for overlay and buildup. However, dilution from the casting influences the mechanical properties of the metal. The welds are easily machinable. A preheat and interpass temperature of 350ºF (175ºC) minimum is recommended during welding.
| Cu | C | Si | Fe | Mn | Ni | S | Others |
| .75 max | 1.0 max | .75 max | 4.0 max | 2.5 max | 90.0 min | .03 max | 1.0 max |
- Specifications: AWS 5.15
- Classification: ERNi-CI
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