CK20 - Fondinox

ACI/CAST GRADE	CAST ASTM	CAST EN/DIN	CAST UNS	WROUGHT UNS	WROUGHT GRADE
CK20	A351, A743	–	J94202	S31008	AISI 310S

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C	Cr	Ni	Mo	Other	PREn
<0.20	25.0	20.5	<0.5	–

CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	Rm [MPa]	A %	Hardness [HB]	Impact [J]
195	450	30	150-220	80

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	7.75	–	–	–	–

WORKING CONDITIONS / FABRICATION
Heat Treatment	Weldability	Machinability [100 = CF8M]	Patternmaker’s Shrinkage [%]
Solution Annealing	Satisfactory		2.7

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
Categoria:	Austenitic
ACI/CAST GRADE	CK20
CAST ASTM	A351, A743
CAST EN/DIN	–
CAST UNS	J94202
WROUGHT UNS	S31008
WROUGHT GRADE	AISI 310S
C	<0.20
Cr	25.0
Ni	20.5
Mo	<0.5
Other	–
PREn
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	195
Rm [MPa]	450
A %	30
Hardness [HB]	150-220
Impact [J]	80
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure	Austenitic
ρ [kg/dm³]	7.75
α [μm/m∙K] (20 – 100 °C)	–
K [W/m∙K]	–
Cp [J/kg∙K]	–
Melting ΔT [°C]	–
WORKING CONDITIONS / FABRICATION
Heat Treatment	Solution Annealing
Weldability	Satisfactory
Machining
Patternmaker’s Shrinkage [%]	2.7