Mechanical properties:
– Excellent high-temperature strength and resistance to thermal fatigue
– Good toughness and formability
– Superior creep and stress rupture properties
– High corrosion resistance in various environments
Technical properties:
– Suitable for high-temperature applications such as aircraft exhausts, collector rings, and jet engine parts
– Weldable and easily fabricated
– Good machinability and grindability
Chemical composition:
– Carbon (C): 0.08% max
– Manganese (Mn): 2.00% max
– Phosphorus (P): 0.045% max
– Sulfur (S): 0.03% max
– Silicon (Si): 0.75% max
– Chromium (Cr): 17.0-20.0%
– Nickel (Ni): 9.0-13.0%
– Columbium (Nb): 10xC min, 1.10 max
– Nitrogen (N): 0.10% max
The 347S17 steel grade offers a balance of mechanical strength, corrosion resistance, and versatility, making it suitable for a wide range of industrial applications including chemical processing, food production, and power generation. Its unique combination of properties makes it a preferred material in industries where high-temperature and corrosion resistance are essential.
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