309 Welding Electrodes

309 Welding Electrodes

Diamter MM
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Descriptions

  • Material Type: E309 electrodes are designed for welding stainless steels to carbon steels, or for joining dissimilar stainless steels.

  • Composition: They have a high content of chromium (around 23–25%) and nickel (12–14%), which provides excellent oxidation and corrosion resistance.

  • Applications:

    • Welding stainless steel (like 304) to mild steel or low-alloy steel.

    • Surfacing or overlay welding on carbon steel to provide a corrosion-resistant layer.

    • Repairing stainless steel equipment exposed to high temperatures.

  • Properties:

    • Good resistance to scaling and oxidation up to about 1000°C (1830°F).

    • Maintains ductility and toughness even after repeated thermal cycling.

    • Produces welds that are crack-resistant when joining dissimilar metals.

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