HP35MA - Fondinox

ACI/CAST GRADE	CAST ASTM	CAST EN/DIN	CAST UNS	WROUGHT UNS	WROUGHT GRADE
HP35MA	–	GX40NiCrNbTi 35-25	–	–	–

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C	Cr	Ni	Si	Other
0.4	25.0	30.0	2.5	1.2 Nb+Ti

CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	Rm [MPa]	A %	Hardness [HB]	Impact [J]
235	435	5	–	–

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
–	64	45	29	15	3	–	70	50	28	14	4

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	8.0	–	–	–	1329

WORKING CONDITIONS / FABRICATION
Heat Treatment	Max working T in air [°C]	Machinability [100 = CF8M]	Patternmaker’s Shrinkage [%]
As Cast	1150	–	2.3

APPLICATIONS/ENVIRONMENTS/DESIGN CONSIDERATIONS
HP35MA (Micro Alloyed) is a modified version of the traditional A297 HP alloy, where the addition of MC formers carbides such as Nb, Ti and Zr gives higher strength at higher temperatures, enhancing the creep properties of the material. The alloy is suitable for petrochemical insustry.

APPLICATIONS/ENVIRONMENTS/DESIGN CONSIDERATIONS

HP35MA (Micro Alloyed) is a modified version of the traditional A297 HP alloy, where the addition of MC formers carbides such as Nb, Ti and Zr gives higher strength at higher temperatures, enhancing the creep properties of the material. The alloy is suitable for petrochemical insustry.

CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
Categoria:	Fe-Ni-Cr
ACI/CAST GRADE	HP35MA
CAST ASTM	–
CAST EN/DIN	GX40NiCrNbTi 35-25
CAST UNS	–
WROUGHT UNS	–
WROUGHT GRADE	–
C	0.4
Cr	25.0
Ni	30.0
Si	2.5
Other	1.2 Nb+Ti
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp_0.2[MPa]	235
Rm [MPa]	435
A %	5
Hardness [HB]	–
Impact [J]	–
CREEP LIMIT
Creep limit 1% 10.000 hours MPa at °C
600	–
700	64
800	45
900	29
1000	15
1100	3
Creep strength for 100.000 hours MPa at °C
600	–
700	70
800	50
900	28
1000	14
1100	4
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure	Austenitic, Carbides
ρ [kg/dm³]	8.0
α [μm/m∙K] (20 – 100 °C)	–
K [W/m∙K]	–
Cp [J/kg∙K]	–
Melting ΔT [°C]	1329
WORKING CONDITIONS / FABRICATION
Heat Treatment	As Cast
Max working T in air [°C]	1150
Machining	–
Patternmaker’s Shrinkage [%]	2.3