Limiting Chemical Composition, %

Ni - Remainder
Cr - 20.5-23.0
Fe - 17.0-20.0
Mo - 8.0-10.0
Co - 0.5-2.5
W - 0.2-1.0
C - 0.05-0.15
Si - 1.0 max.
Mn - 1.0 max.
P - 0.04 max.
S - 0.03 max.

Typical Mechanical Properties
(Solution Annealed)

Rupture Strength (1000 h)

Physical Constants and Thermal Properties

Density, Ib/in3 •••••• 0.297
g/cm3 •••••• 8.22
Melting Range, °F •••••• 2300 – 2470
°C •••••• 1260 – 1355
Specific Heat, Btu/lb •°F •••••• 0.110
J/kg • °C •••••• 461
Permeability at 200 Oersted (15.9 kA/m) •••••• 1.0110
Coefficient of Expansion, 70 – 200°F, 10-6 in/in • °F •••••• 7.4
20 – 100°C, μm/m • °C •••••• 13.3
Thermal Conductivity, Btu • in/ft2•h•°F •••••• 80.4
W/m• °C •••••• 11.6
Electrical Resistivity, ohm• circ mil/ft •••••• 698
μΩ•m •••••• 1.16

Specifications and Designation

UNS N06002
BS HR6, HR204
ASTM B435, B572, B619, B622, B626, B 751 SB-435, SB-572, SB-619, SB-622, SB-626,
Boiler Code Sections III, VIII, IX
SAE AMS 5536, 5587, 5588,
5754, 5798, 7237
WL Nr. 2.4665
AFNOR NC 22 Fe D
NACE MR-01-75
AECMA Pr EN 2182-2185
Werkstoff Nr. 2.4665

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