Haynes® 230 UNS N06230

Haynes® 230® (Alloy 230) alloy is a nickel-chromium-tungsten-molybdenum alloy exhibiting excellent high-temperature strength, outstanding resistance to oxidizing environments and nitriding environments. Haynes 230 has good formability and offers excellent long-term thermal stability. It also has lower thermal expansion characteristics than most high-temperature alloys, and resists grain coarsening with prolonged exposure to high temperatures.
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Haynes 230 (Nickel Alloy 230) Strip, Coil, Foil, Wire, ASTM B435, AMS 5878, PWA 1163

Applications

Alloy 230 Description

Haynes® 230 is a nickel-chromium-tungsten-molybdenum alloy, designed to combine excellent high temperature strength, oxidation resistance (up to 2100 °F), nitriding resistance and long term stability. Alloy 230 is a solid-solution-strengthened material which combines excellent high-temperature strength with good fabricability at room temperature. It is particularly effective for very long-term applications at temperatures of 1200 °F (649 °C) or more, and is capable of outlasting stainless steels and nickel alloys by as much as 100 to 1 depending upon the temperature.

Chemistry Typical

Nickel: 47.00-65.00
Iron: 3.00 max
Chromium: 20.00 - 24.00
Cobalt: 5.00 max
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 max
Sulfur: 0.015 max
Boron: 0.015 max
Titanium: 0.10 max
Copper: 0.50 max

Physical Properties of Haynes 230

Density: 0.327 lbs/in3, 9.05 g/cm3

Specific Heat: BTU/lb/° F (J/kg•K):
At 70 ° F (21 °C): .0095 (397)

Mean 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):
70 ° F (21 °C): 62 (8.9)

Modulus of Elasticity: ksi (MPa)
30.6 x 103 (21 Ox 103) in tension

Melting Point: 2375 - 2500 ° F (1300 - 1374 °C)

Forms

Coil
  • Strip
  • Foil
  • Ribbon
Wire
  • Profile Wire (Shaped Wire)
  • Round Wire
  • Flat Wire
  • Square Wire

Mechanical Properties of Haynes 230 at Room Temperature

Properties: Annealed

Ultimate Tensile Strength: 110 KSI min (760 MPa min)
Yield Strength (0.2% offset): 45 KSI min (31 O MPa min)
Elongation: 40% min

Properties: Tempered

Haynes® 230 can be cold rolled to various tempers. Contact Ulbrich Technical Service for additional information.

Additional Properties

Haynes 230 Corrosion Resistance

Refer to NACE (National Associate of Corrosion Engineers) for recommendations.

Finishes

#1 - Hot rolled annealed and descaled. It is available in strip, foil and ribbon. It is used for applications where a smooth decorative finish is not required.
#2D - Dull finish produced by cold rolling, annealing and descaling. Used for deep drawn parts and those parts that need to retain lubricants in the forming process. #2B - Smooth finish produced by cold rolling, annealing and descaling. A light cold rolling pass is added after anneal with polished rolls giving it a brighter finish than 2D.
#BA- Bright annealed cold rolled and bright annealed
#CBA- Course bright annealed cold rolled matte finish and bright anneal
#2 - Cold Rolled
#2BA- Smooth finish produced by cold rolling and bright annealing. A light pass using highly polished rolls produces a glossy finish. A 2BA finish may be used for lightly formed applications where a glossy finish is desired in the formed part. Polished - Various grit finish for specific polish finished requirements.

* Not all finishes are available for all alloys - Contact Ulbrich Sales for more information.

Wire Finishes

XC - Extra Clean Bright Annealed or Bright Annealed and Cold Rolled Grease - Ultra bright finish (for decorative applications) Soap - Soap coating on tempered wire to act as lubricant. * Contact Ulbrich Wire for custom wire finishes.

Heat Treatment

Haynes® 230 cannot be hardened heat treating.

Welding

For best results refer to: SSINA's "Welding of Stainless Steels and Other Joining Methods".




Limitation of Liability and Disclaimer of Warranty: In no event will Ulbrich Stainless Steels & Special Metals, Inc., be liable for any damages arising from the use of the information included in this document or that it is suitable for the 'applications' noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. Ulbrich assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.

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