Fondinox > HK

HK

ACI/CAST
GRADE
CAST ASTM CAST EN/DIN CAST UNS WROUGHT
UNS
WROUGHT
GRADE
HK A297 1.4848 GX40CrNiSi25-20 J94224 S31000 AISI 310
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C Cr Ni Si Other
0.40 25.0 20.0 1.75
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] Rm [MPa] A % Hardness [HB] Impact [J]
240 450 10 - -
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
57 35 18 8 2.5 - 45 32 17 6.5 -
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 7.75 18.4 22 451 1425-1455
WORKING CONDITIONS / FABRICATION
Heat Treatment Max working T in air [°C] Machinability [100 = CF8M] Patternmaker’s Shrinkage [%]
As Cast 1050 2.3
Categoria: Fe-Cr-Ni
ACI/CAST
GRADE
HK
CAST ASTM A297
CAST EN/DIN 1.4848 GX40CrNiSi25-20
CAST UNS J94224
WROUGHT
UNS
S31000
WROUGHT
GRADE
AISI 310
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C 0.40
Cr 25.0
Ni 20.0
Si 1.75
Other
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] 240
Rm [MPa] 450
A % 10
Hardness [HB] -
Impact [J] -
CREEP LIMIT
Creep limit 1% 10.000 hours MPa at °C
600
700 57
800 35
900 18
1000 8
1100 2.5
Creep strength for 100.000 hours MPa at °C
600 -
700 45
800 32
900 17
1000 6.5
1100 -
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure Austenitic, Carbides
ρ [kg/dm3] 7.75
α [μm/m∙K] (20 - 100 °C) 18.4
K [W/m∙K] 22
Cp [J/kg∙K] 451
Melting ΔT [°C] 1425-1455
WORKING CONDITIONS / FABRICATION
Heat Treatment As Cast
Max working T in air [°C] 1050
Machining
Patternmaker’s Shrinkage [%] 2.3

Fondinox S.p.A © - All rights reserved