Nickel Alloy 230 /Haynes 230®

Technical Data Sheet

Alloy 230 is a nickel-chromium-tungsten-molybdenum alloy that combines excellent high temperature strength, outstanding resistance to nitriding environments and excellent long term thermal stability. Alloy 230 is easily fabricated and has very good forming and welding characteristics. Due to Alloy 230 combined properties it is very well suited to a wide variety of component applications in the aerospace and power industries. Alloy 230 is used for combustion cans, transition ducts, flame holders, thermocouple sheaths and other important gas turbine components. Haynes alloy 230 is solution treated at 2150 to 2275°F followed by rapid cooling, and is supplied in this condition (as per AMS 5891 and AMS 5878). Alloy 230 can be both hot worked and cold worked and all parts should be annealed and rapidly cooled in order to restore the best balance of properties.

Chemical Composition Limits
Weight% C Mn Si P S Cr Co Fe Al Ti B Cu La W Mo Ni
Haynes 230 0.05-0.15 0.30-1.0 0.25-0.75 0.03 0.015 20.0-24.0 5.0 3.0 0.20-0.50 0.10 0.015 0.50 0.005-0.05 13.0-15.0 1.0-3.0 Rem

Typical Mechanical Properties


Material Test Temp °F Ultimate Tensile Strength 0.2 % Yield Strength Elongation in % Hardness HB
Haynes Alloy 230 Extruded Bar
Solution Treated (AMS 5891)
RT 758 Mpa
110 ksi
310 Mpa
45 ksi
35 241 max


Material Test Temp °F Ultimate Tensile Strength 0.2 % Yield Strength Elongation in % Hardness HB
Haynes Alloy 230 Sheet
Solution Treated (AMS 5878)
RT 793 Mpa
115 ksi
345 Mpa
50 ksi
40 25 max
Haynes Alloy 230 Sheet
Solution Treated (AMS 5878)
1000 699 Mpa
101.5 ksi
303 Mpa
44 ksi
53.7 -
Haynes Alloy 230 Sheet
Solution Treated (AMS 5878)
1400 539 Mpa
78.3 ksi
323 Mpa
46.9 ksi
61.2 -
Haynes Alloy 230 Sheet
Solution Treated (AMS 5878)
2000 90 Mpa
13.1 ksi
69 Mpa
10 ksi
37 -
(Non-room temperature figures are typical only)

A lloy 230 is available in Plate, Sheet, Strip, Foil, Billet, Bar, Wire, Forging Stock, Welding Products, Pipe and Tubing. For stock availability contact Sales

UNS N06230
AMS 5878 - Sheet, Strip and Plate
AMS 5891 - Bar and Forging
GE B50TF246
DIN 17744 No 2.4733
ASME SB 435 Sheet, Strip and Plate
ASME SB 572 Bar and Rod
ASME SB 564 Forgings
ASME SB 619 Welding Pipe
ASME SB 622 Seamless Tube and Pipe
ASME SB 626 Welded Tube
ASME SB 366 Fittings
ASTM B435 Sheet, Strip and Plate
ASTM B572 Bar and Rod
ASTM B564 Forgings
ASTM B619 Welded Pipe
ASTM B 622 Seamless Tube and Pipe
ASTM B626 Welded Tube
ASTM B366 Fittings
Haynes 230 (trademark)

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Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.