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431

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)
Rp0.2[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
Categoria: Martensitic
ACI/CAST
GRADE
431
CAST ASTM -
CAST EN/DIN 1.4059 GX22CrNi17
CAST UNS J91651
WROUGHT
UNS
S43100
WROUGHT
GRADE
AISI 431
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C 0.22
Cr 17.0
Ni 1.5
Mo -
Other -
PREn
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[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

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