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HP35MA

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)
Rp0.2[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.

Categoria: Fe-Ni-Cr
ACI/CAST
GRADE
HP35MA
CAST ASTM -
CAST EN/DIN GX40NiCrNbTi 35-25
CAST UNS -
WROUGHT
UNS
-
WROUGHT
GRADE
-
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
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)
Rp0.2[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

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