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HU

ACI/CAST
GRADE
CAST ASTM CAST EN/DIN CAST UNS WROUGHT
UNS
WROUGHT
GRADE
HU A297 1.4865 GX40NiCrSi38-18 N08004 - -
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C Cr Ni Si Other
0.40 18.0 37.5 1.8 -
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] Rm [MPa] A % Hardness [HB] Impact [J]
- 450 4 - -
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
- 52 34 20 6 - - 50 32 19 6 -
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, Carbides 8.04 15.8 12.1 460 1340
WORKING CONDITIONS / FABRICATION
Heat Treatment Max working T in air [°C] Machinability [100 = CF8M] Patternmaker’s Shrinkage [%]
As Cast 1050 - 2.3
Categoria: Fe-Ni-Cr
ACI/CAST
GRADE
HU
CAST ASTM A297
CAST EN/DIN 1.4865 GX40NiCrSi38-18
CAST UNS N08004
WROUGHT
UNS
-
WROUGHT
GRADE
-
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C 0.40
Cr 18.0
Ni 37.5
Si 1.8
Other -
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] -
Rm [MPa] 450
A % 4
Hardness [HB] -
Impact [J] -
CREEP LIMIT
Creep limit 1% 10.000 hours MPa at °C
600 -
700 52
800 34
900 20
1000 6
1100 -
Creep strength for 100.000 hours MPa at °C
600 -
700 50
800 32
900 19
1000 6
1100 -
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure Austenitic, Carbides
ρ [kg/dm3] 8.04
α [μm/m∙K] (20 - 100 °C) 15.8
K [W/m∙K] 12.1
Cp [J/kg∙K] 460
Melting ΔT [°C] 1340
WORKING CONDITIONS / FABRICATION
Heat Treatment As Cast
Max working T in air [°C] 1050
Machining -
Patternmaker’s Shrinkage [%] 2.3

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