ACI/CAST
GRADE
CAST ASTM CAST EN/DIN CAST UNS WROUGHT
UNS
WROUGHT
GRADE
HD A297 1.4823 GX40CrNiSi27-4 J93005
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C Cr Ni Si Other
0.42 26.5 4.5 1.8
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] Rm [MPa] A % Hardness [HB] Impact [J]
240 515 8
CREEP LIMIT
Creep limit 1% 10.000 hours MPa at °C Creep strength for 100.000 hours MPa at °C
600 700 800 900 1000 1100 600 700 800 900 1000 1100
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]
Ferrite, Austenite, Carbides 7.58 11 22 500 1430 (L)
WORKING CONDITIONS / FABRICATION
Heat Treatment Max working T in air [°C] Machinability [100 = CF8M] Patternmaker’s Shrinkage [%]
As Cast 1050 2
Categoria: Fe-Cr-Ni
ACI/CAST
GRADE
HD
CAST ASTM A297
CAST EN/DIN 1.4823 GX40CrNiSi27-4
CAST UNS J93005
WROUGHT
UNS
WROUGHT
GRADE
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C 0.42
Cr 26.5
Ni 4.5
Si 1.8
Other
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] 240
Rm [MPa] 515
A % 8
Hardness [HB]
Impact [J]
CREEP LIMIT
Creep limit 1% 10.000 hours MPa at °C
600
700
800
900
1000
1100
Creep strength for 100.000 hours MPa at °C
600
700
800
900
1000
1100
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure Ferrite, Austenite, Carbides
ρ [kg/dm3] 7.58
α [μm/m∙K] (20 – 100 °C) 11
K [W/m∙K] 22
Cp [J/kg∙K] 500
Melting ΔT [°C] 1430 (L)
WORKING CONDITIONS / FABRICATION
Heat Treatment As Cast
Max working T in air [°C] 1050
Machining
Patternmaker’s Shrinkage [%] 2

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