Metallized Hastelloy C
A&A Coatings material is a nickel-molybdenum-chromium super-alloy with an addition of tungsten designed to have excellent corrosion resistance in a wide range of severe environments. The high nickel and molybdenum contents make the nickel steel alloy especially resistant to pitting and crevice corrosion in reducing environments while chromium conveys resistance to oxidizing media. The low carbon content minimizes carbide precipitation during spraying to maintain corrosion resistance in as-sprayed structures.
Although there are several variations of the Hastelloy nickel alloy, Hastelloy C is by far the most widely used.
This alloy is widely used in the most severe environments such as chemical processing, pollution control, pulp and paper production, industrial and municipal waste treatment, and recovery of sour natural gas.
Some characteristics of Hastelloy C material:
- Excellent corrosion resistance in reducing environments
- Exceptional resistance to strong solutions of oxidizing salts, such as ferric andcupric chlorides
- High nickel and molybdenum contents providing good corrosion resistance inreducing environments
- Resistance to localized corrosion such as pitting and stress-corrosion cracking
- One of few materials to withstand the corrosive effects of wet chlorine gas,
Material Wire Characteristics
| Typical Composition: | Molybdemum 15%Chrome 15% Iron 5% Tungsten 4% Cobalt 2.5% max Manganese 1% max Carbon 0.01% max Vanadium 0.35% max Phosphorous 0.04% max Sulfur 0.03% max Si 0.08% max Nickel BALANCE |
| Melting Point: | 2500°F |
Physical Properties of Coating
| Surface Finish: Ground | 32 |
| Coating Weight (lb/ft2/.001″): | .045 |
| Thickness Limitation: | High |
Finishing
A&A Coatings combustion wire sprayed Hastelloy C may be ground, or machined to finish requirements.