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01020304
Haynes Alloys Bar Haynes 214
Haynes Alloys Bar Haynes 214
Haynes Alloys Bar Haynes 214

Haynes Alloys Bar Haynes 214

  • Place of Origin Jiangsu,China
  • Model Number Haynes Alloys Bar Haynes 214
  • Trade Names UNS N07214/ISO 9724
  • Dimensions Customized Size
  • Delivery Conditions Grinding. Polished. Bright.
  • Avaliable Shapes Wire.Customized
  • MOQ 50~200 (KG)
  • Production Standards AMS 5875/ASTM B344 or MIL Standards
  • Packaging Details Wooden Case, or as per Client's request
  • Payment Terms L/C, T/T, Western Union, MoneyGram
  • Trade Terms FOB, CIF, DDP, DAP, EXW
  • Delivery Time 20~60 days
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product details

Overview


Haynes 214 is a nickel-chromium-aluminum-iron alloy with additions of yttrium, optimized for extreme high-temperature stability.



Limiting Chemical Composition, %


Nickel...........................................................................................................................................75.0-80.0

Chromium............................................................................................................................................16.0

Aluminum..............................................................................................................................................4.5

Iron.........................................................................................................................................................3.0

Yttrium (Y): Trace amounts (enhances oxide layer adhesion and spallation resistance).



Key Properties


● Ultra-High Temperature Resistance:

Retains strength and oxidation resistance up to 1200°C (2200°F).

Stable Al₂O₃ scale resists spalling due to yttrium’s “anchor” effect.


● Mechanical Performance:

Excellent creep resistance under prolonged stress at high temperatures.

Good thermal fatigue resistance for cyclic heating/cooling applications.


● Corrosion Resistance:

Performs well in oxidizing, carburizing, and nitriding atmospheres (e.g., industrial furnaces).



Fabrication and Processing


● Forming:

Bars are typically produced via hot working (forging, rolling) and supplied in annealed condition (AMS 5877).


● Machining:

Challenging due to high work-hardening rates; use rigid setups, sharp carbide tools, and low-speed/high-feed techniques.

Coolants are recommended to manage heat generation.


● Heat Treatment:

Solution annealing at 1120–1175°C (2050–2150°F) followed by rapid cooling to optimize microstructure.


● Welding:

Compatible with TIG (GTAW) and resistance welding. Post-weld annealing reduces residual stresses.



Applications:


● Aerospace:

Turbine engine components (combustors, seals), structural parts in high-heat zones.


● Industrial:

Furnace fixtures (racks, rails, radiant tubes).

Heat exchangers, burner nozzles, and pyrolysis equipment.


● Energy:

Components in gas turbines and nuclear reactors.



Comparisons:


● vs. Inconel 601/625: Superior oxidation resistance above 1000°C due to Al/Y-enhanced oxide layer.

● vs. Haynes 230: Better resistance to carburization but lower intermediate-temperature strength.

● vs. Nickel 201: Far higher temperature capability but less ductility at room temperature.



Standards and Specifications


● AMS 5877: Aerospace Material Specification for Haynes 214 bar stock.

● ASTM B408: Standard for nickel-alloy bars and forgings (general guidance).



Key Considerations


● Cost: High due to nickel and yttrium content; justified in mission-critical applications.

● Thermal Stability: Avoid prolonged exposure to 650–870°C (1200–1600°F), where sigma phase formation could embrittle the alloy.

● Surface Finish: Grinding or pickling may be required post-machining to remove surface oxides.



Conclusion:


Haynes 214 alloy bar is engineered for extreme environments demanding unmatched oxidation resistance, thermal stability, and mechanical integrity. Its niche lies in aerospace and industrial systems operating at ultra-high temperatures, where most alloys degrade rapidly. While challenging to machine, its performance in harsh conditions makes it a premium choice for critical high-heat applications.



Available Forms


We provide you with a variety of product forms, including but not limited to


● Strip & Foil

● Round Wire &Flat Wire

● Bar & Rod

● Electrothermal Strip

● Flange & Ring

● Wire & Welding

● Reststance Wire

● Electric Alloy Wire

● Electric Furnace Bar

● Customize

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