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HT

ACI/CAST
GRADE
CAST ASTM CAST EN/DIN CAST UNS WROUGHT
UNS
WROUGHT
GRADE
HT A297 - N08002 - AISI 330
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C Cr Ni Si Other
0.55 17.0 35.0 1.8 -
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] Rm [MPa] A % Hardness [HB] Impact [J]
220 450 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
- 50 32 20 2.5 - - 48 30 18 5 -
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 7.92 14.2 12.1 460 1368 (L)
WORKING CONDITIONS / FABRICATION
Heat Treatment Max working T in air [°C] Machinability [100 = CF8M] Patternmaker’s Shrinkage [%]
As Cast 1020 - 2.3
Categoria: Fe-Ni-Cr
ACI/CAST
GRADE
HT
CAST ASTM A297
CAST EN/DIN -
CAST UNS N08002
WROUGHT
UNS
-
WROUGHT
GRADE
AISI 330
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C 0.55
Cr 17.0
Ni 35.0
Si 1.8
Other -
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] 220
Rm [MPa] 450
A % 4
Hardness [HB] -
Impact [J] -
CREEP LIMIT
Creep limit 1% 10.000 hours MPa at °C
600 -
700 50
800 32
900 20
1000 2.5
1100 -
Creep strength for 100.000 hours MPa at °C
600 -
700 48
800 30
900 18
1000 5
1100 -
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure Austenitic, Carbides
ρ [kg/dm3] 7.92
α [μm/m∙K] (20 - 100 °C) 14.2
K [W/m∙K] 12.1
Cp [J/kg∙K] 460
Melting ΔT [°C] 1368 (L)
WORKING CONDITIONS / FABRICATION
Heat Treatment As Cast
Max working T in air [°C] 1020
Machining -
Patternmaker’s Shrinkage [%] 2.3

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