ACI/CAST
GRADE		 CAST ASTM CAST EN/DIN CAST UNS WROUGHT
UNS		 WROUGHT
GRADE
CU5MCuC A494 2.4858 NiCr21Mo N08826 N08825 INCOLOY 825
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C Cr Ni Mo Other PREn
<0.05 21.5 39.5 3.0 0.8Nb, 3.0Cu –
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] Rm [MPa] A % Hardness [HB] Impact [J]
240 520 20 120-180 100
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure ρ [kg/dm3] α [μm/m∙K] (20 – 100 °C) K [W/m∙K] Cp [J/kg∙K] Melting ΔT [°C]
Austenitic 8.14 11.1 14.1 440 1370-1400
WORKING CONDITIONS / FABRICATION
Heat Treatment Weldability Machinability [100 = CF8M] Patternmaker’s Shrinkage [%]
Solution Annealed, Stabilized Satisfactory 67 2.0
Categoria: Nickel Base
ACI/CAST
GRADE		 CU5MCuC
CAST ASTM A494
CAST EN/DIN 2.4858 NiCr21Mo
CAST UNS N08826
WROUGHT
UNS		 N08825
WROUGHT
GRADE		 INCOLOY 825
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C <0.05
Cr 21.5
Ni 39.5
Mo 3.0
Other 0.8Nb, 3.0Cu
PREn –
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] 240
Rm [MPa] 520
A % 20
Hardness [HB] 120-180
Impact [J] 100
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure Austenitic
ρ [kg/dm3] 8.14
α [μm/m∙K] (20 – 100 °C) 11.1
K [W/m∙K] 14.1
Cp [J/kg∙K] 440
Melting ΔT [°C] 1370-1400
WORKING CONDITIONS / FABRICATION
Heat Treatment Solution Annealed, Stabilized
Weldability Satisfactory
Machining 67
Patternmaker’s Shrinkage [%] 2.0

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