ACI/CAST
GRADE		 CAST ASTM CAST EN/DIN CAST UNS WROUGHT
UNS		 WROUGHT
GRADE
CE3MN, 4A A890, A995 1.4470 GX2CrNiMoN22-5-3 J92205 S31803 F51
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C Cr Ni Mo Other PREn
<0.03 22.0 5.5 2.8 0.18N –
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] Rm [MPa] A % Hardness [HB] Impact [J]
415 620 25 200-260 140
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]
Austenoferritic 7.75 13 15 500 1385-1455
WORKING CONDITIONS / FABRICATION
Heat Treatment Weldability Machinability [100 = CF8M] Patternmaker’s Shrinkage [%]
Solution Annealing Excellent 2.3
Categoria: Sandvik
ACI/CAST
GRADE		 CE3MN, 4A
CAST ASTM A890, A995
CAST EN/DIN 1.4470 GX2CrNiMoN22-5-3
CAST UNS J92205
WROUGHT
UNS		 S31803
WROUGHT
GRADE		 F51
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C <0.03
Cr 22.0
Ni 5.5
Mo 2.8
Other 0.18N
PREn –
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] 415
Rm [MPa] 620
A % 25
Hardness [HB] 200-260
Impact [J] 140
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure Austenoferritic
ρ [kg/dm3] 7.75
α [μm/m∙K] (20 – 100 °C) 13
K [W/m∙K] 15
Cp [J/kg∙K] 500
Melting ΔT [°C] 1385-1455
WORKING CONDITIONS / FABRICATION
Heat Treatment Solution Annealing
Weldability Excellent
Machining
Patternmaker’s Shrinkage [%] 2.3

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