CB7Cu-1 - Fondinox

ACI/CAST GRADE	CAST ASTM	CAST EN/DIN	CAST UNS	WROUGHT UNS	WROUGHT GRADE
CB7Cu-1	A747	1.4540 GX4CrNiCuNb16-4	J92180	S17700	17-4PH®

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C	Cr	Ni	Mo	Other	PREn
<0.06	16.5	4	–	–

CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	Rm [MPa]	A %	Hardness [HB]	Impact [J]
670-1000	860-1160	5-10	269-375	30

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, (δ ferrite, Intermetallics)	7.65	14	22	460	1510

WORKING CONDITIONS / FABRICATION
Heat Treatment	Weldability	Machinability [100 = CF8M]	Patternmaker’s Shrinkage [%]
Annealed (Precipitation Hardening)	Satisfactory		2.1

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
Categoria:	Martensitic
ACI/CAST GRADE	CB7Cu-1
CAST ASTM	A747
CAST EN/DIN	1.4540 GX4CrNiCuNb16-4
CAST UNS	J92180
WROUGHT UNS	S17700
WROUGHT GRADE	17-4PH®
C	<0.06
Cr	16.5
Ni	4
Mo	–
Other	–
PREn
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	670-1000
Rm [MPa]	860-1160
A %	5-10
Hardness [HB]	269-375
Impact [J]	30
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure	Martensitic, (δ ferrite, Intermetallics)
ρ [kg/dm³]	7.65
α [μm/m∙K] (20 – 100 °C)	14
K [W/m∙K]	22
Cp [J/kg∙K]	460
Melting ΔT [°C]	1510
WORKING CONDITIONS / FABRICATION
Heat Treatment	Annealed (Precipitation Hardening)
Weldability	Satisfactory
Machining
Patternmaker’s Shrinkage [%]	2.1