431 - Fondinox

ACI/CAST GRADE	CAST ASTM	CAST EN/DIN	CAST UNS	WROUGHT UNS	WROUGHT GRADE
431	–	1.4059 GX22CrNi17	J91651	S43100	AISI 431

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C	Cr	Ni	Mo	Other	PREn
0.22	17.0	1.5	–	–

CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	Rm [MPa]	A %	Hardness [HB]	Impact [J]
590	780	4	230-300	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]
Martensitic	7.61	11.2	25	460

WORKING CONDITIONS / FABRICATION
Heat Treatment	Weldability	Machinability [100 = CF8M]	Patternmaker’s Shrinkage [%]
	Usually unsatisfactory		2

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
Categoria:	Martensitic
ACI/CAST GRADE	431
CAST ASTM	–
CAST EN/DIN	1.4059 GX22CrNi17
CAST UNS	J91651
WROUGHT UNS	S43100
WROUGHT GRADE	AISI 431
C	0.22
Cr	17.0
Ni	1.5
Mo	–
Other	–
PREn
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	590
Rm [MPa]	780
A %	4
Hardness [HB]	230-300
Impact [J]	5
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure	Martensitic
ρ [kg/dm³]	7.61
α [μm/m∙K] (20 – 100 °C)	11.2
K [W/m∙K]	25
Cp [J/kg∙K]	460
Melting ΔT [°C]
WORKING CONDITIONS / FABRICATION
Heat Treatment
Weldability	Usually unsatisfactory
Machining
Patternmaker’s Shrinkage [%]	2