HE - Fondinox

ACI/CAST GRADE	CAST ASTM	CAST EN/DIN	CAST UNS	WROUGHT UNS	WROUGHT GRADE
HE	A297	–	J93403	–	AISI 312

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C	Cr	Ni	Si	Other
0.35	28.0	9.0	1.8	–

CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	Rm [MPa]	A %	Hardness [HB]	Impact [J]
275	585	9	–	–

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]
Austenite, Ferrite, Carbides	7.67	17.3	14.7	580	1454

WORKING CONDITIONS / FABRICATION
Heat Treatment	Max working T in air [°C]	Machinability [100 = CF8M]	Patternmaker’s Shrinkage [%]
As Cast	1050		2.3

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
Categoria:	Fe-Cr-Ni
ACI/CAST GRADE	HE
CAST ASTM	A297
CAST EN/DIN	–
CAST UNS	J93403
WROUGHT UNS	–
WROUGHT GRADE	AISI 312
C	0.35
Cr	28.0
Ni	9.0
Si	1.8
Other	–
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	275
Rm [MPa]	585
A %	9
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	Austenite, Ferrite, Carbides
ρ [kg/dm³]	7.67
α [μm/m∙K] (20 – 100 °C)	17.3
K [W/m∙K]	14.7
Cp [J/kg∙K]	580
Melting ΔT [°C]	1454
WORKING CONDITIONS / FABRICATION
Heat Treatment	As Cast
Max working T in air [°C]	1050
Machining
Patternmaker’s Shrinkage [%]	2.3