Chlorine Resistance Hastelloy C Forgings in Seals

Model NO.: NS3303


Specification: Dia. 8-350mm




Trademark: Precision Alloy


Origin: Jiangsu Danyang



Hastelloy C™


WHAT IS HASTELLOY C™?


Hastelloy C is an alloy composed of nickel, molybdenum, chromium and iron, Hastelloy™ Alloy-C maintains its outstanding properties in extreme heat, holding its strength and resisting oxidation. Hastelloy C is also resists chlorine and compounds with chlorine, as well as strong oxidizing acids, acid mixes and salts. One of the most corrosion-resistant alloys, it's exceptional in high-stress applications and in environments prone to repeated thermal shock.


HASTELLOY C FORGINGS


Hastelloy has become popular because of its staggering list of achievements, but corrosion resistance remains at the top of the list. With nickel, molybdenum and chromium in the mix, Hastelloy C is highly weldable and offers tremendous heat resistance that makes it perfect for applications in seals, springs and other pieces of mechanical structures such as aerospace parts.


CHEMICAL COMPOSITION OF HASTELLOY C™



Carbon 0.15 max


Tungsten 3.75-5.25


Iron 4.5-7.0


Chromium 15.5-17.5


Molybdenum 16.0-18.0


Vanadium 0.20-0.40


Manganese 1.0 max


Silicon 1.0 max


Phosphorus 0.04 max


Sulfur 0.03 max


Nickel remainder



HEAT TREATMENT OF HASTELLOY C™





Anneal: Heat at 2235=20 deg F for a length of time dedicated by the mass and cross section. Air cool generally to 1 to 2 hours.


Age hardening after annealing:


Hold at 1575°-1600°F (857°-871°C) for 8-10 hours


Air-cool to Rockwell C 35-40


Hold castings for 16 hours at aging temperature to achieve hardness and high yield strength (not required or suggested to resist corrosion on for strength at high temperatures).







APPLICATIONS OF HASTELLOY C™



Combustion chambers


Heat-treating equipment


Collector rings, combustion chambers and exhaust stacks for high-heat applications in for conventional aircraft and jets


Pipe connections, pumps and valves for oil refinery, chemical and petrochemical applications



MACHINABILITY OF HASTELLOY C™



Can be machined at low cutting speeds


Use sintered carbide cutting tools and grind to 6-7 degree side clearance and 10-15 degree side rake angle for facing or turning operations


Use short drill and grind with minimum clearance to clear the work generally about 140 degrees total when drilling


Use sulfur-based oil coolant when drilling, or when turning, facing, or boring at higher speeds



WORKABILITY OF HASTELLOY C™



Preheat to temperatures to 2200°-2250° F (1204°-1232°C)


Forge with hot working procedures:


Hammering


Pressing


Rolling

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Product Categories : Hastelloy Forgings