Haynes 230 is a nickel-chromium-tungsten-molybdenum Ni-Cr-W-Mo alloy with excellent high temperature strength, yangation resistance (up to 2100°F), nitriding resistance and long-term stability.
Alloy 230 is a solid solution strengthened material with excellent high temperature strength and good machinability at room temperature.
Hot working properties are similar to those of Inconel 617 and 625. The alloy can be processed with large deformation in the temperature range of 1010-1230 °C, and can be processed with small deformation at 954 °C.
Although the alloy is easily cold worked by conventional processes, the alloy has a high rate of work hardening.
To achieve good results, the alloy should be cold worked under fine-grained conditions and multiple intermediate anneals should be used.
The annealing temperature before processing should be 1066-1149°C to avoid coarse grain structure. Common corresponding grades
Alloy 230, Haynes 230, INCONEL 230 AMS 5878, UNS N06230, W. NR./EN 2.4733, Nickel Alloy 230, PWA 1163, GH3230, GH230, Inconel230
Standard: Rod - ASTMB572, AMS5891, Plate - ASTMB435, AMS5878, Pipe - ASTMB622, ASTMB619, ASTMB626, Forging - ASTMB564, AMS5891, etc.
The chemical composition is as follows:
Nickel: 47.00-65.00
Iron: ≤3.00
Chrome: 20.00 - 24.00
Cobalt: ≤5.00
Molybdenum: 1.00 - 3.00
Tungsten: 13.00 - 15.00
Carbon: 0.05-0.15
Manganese: 0.30-1.00
Silicon: 0.25-0.75
Aluminum: 0.20-0.50
Lanthanum: 0.005-0.05
Phosphorus: ≤0.03
Sulfur: ≤0.015
Boron: ≤0.015
Titanium: ≤0.10
Copper: ≤0.50
UNS N06230 Physical Properties
Density: 0.327 lbs/in3, 9.05 g/cm3
Specific Heat: BTU/lb/°F (J/kg?K): 70°F (21°C): .0095 (397)
Average Coefficient of Thermal Expansion: in/inl°F (mm/ml°C):
70 - 212°F (20 - 100°C): 7.0 x 10-5 (12.7)
Thermal Conductivity: BTU-in/h-ft-°F (W/m)-°K):
Elastic Modulus:
Tension is ksi (MPa) 30.6×103 (21 Ox 103)
Melting Point: 2375 - 2500°F (°C)
form
Coil - Ribbon, Foil, Ribbon Wire - Profile, Round, Flat, Square
Mechanical properties of UNS N06230 at room temperature
Attribute: Annealed
Tensile Strength: 110 KSI min (760 MPa min)
Yield Strength (0.2% Offset): 45 KSI min (31 O MPa min)
Elongation: 40%min
Attribute: Hardened
UNS N06230 can be cold rolled into various states.
heat treatment
UNS N06230 is not heat treatable for hardening.
feature
Excellent oxidation resistance at 2100°F
Superior high temperature strength
High temperature resistant grain coarsening
Good resistance to nitriding and carburizing
application
It combines the strength, thermal stability, oxidation resistance, thermal cycle resistance and machinability of most superalloys. Burners for gas turbines and the same
His key non-moving parts. Also used in thermal and industrial heating and chemical, petroleum industry and thermal power plants. The reason for the new HAYNES230 alloy
The combination of high temperature strength and oxidation resistance and the improvement of thermal stability have become more and more widely used.
Transition duct on turbine engine
Combustion liners for turbine engines
stove still
flame hood
Vacuum heat treatment fixture
70°F (21°C): 62 (8.9)
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