50Cr/50NiNb - Fondinox

ACI/CAST GRADE	CAST ASTM	CAST EN/DIN	CAST UNS	WROUGHT UNS	WROUGHT GRADE
50Cr/50NiNb	–	2.4813 GNiCr50Nb	–	–	IN657

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C	Cr	Ni	Si	Other
<0.1	50.0	Bal.	0.4	1.5Nb

CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	Rm [MPa]	A %	Hardness [HB]	Impact [J]
270	540	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
–	62	35	20	9	3	–	58	34	19	8	2.5

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	7.95	–	–	–	–

WORKING CONDITIONS / FABRICATION
Heat Treatment	Max working T in air [°C]	Machinability [100 = CF8M]	Patternmaker’s Shrinkage [%]
As Cast	1100	–	2.2

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
Categoria:	Nickel and Cobalt Base
ACI/CAST GRADE	50Cr/50NiNb
CAST ASTM	–
CAST EN/DIN	2.4813 GNiCr50Nb
CAST UNS	–
WROUGHT UNS	–
WROUGHT GRADE	IN657
C	<0.1
Cr	50.0
Ni	Bal.
Si	0.4
Other	1.5Nb
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	270
Rm [MPa]	540
A %	8
Hardness [HB]	–
Impact [J]	–
CREEP LIMIT
Creep limit 1% 10.000 hours MPa at °C
600	–
700	62
800	35
900	20
1000	9
1100	3
Creep strength for 100.000 hours MPa at °C
600	–
700	58
800	34
900	19
1000	8
1100	2.5
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure	Austenitic, Carbides
ρ [kg/dm³]	7.95
α [μm/m∙K] (20 – 100 °C)	–
K [W/m∙K]	–
Cp [J/kg∙K]	–
Melting ΔT [°C]	–
WORKING CONDITIONS / FABRICATION
Heat Treatment	As Cast
Max working T in air [°C]	1100
Machining	–
Patternmaker’s Shrinkage [%]	2.2