ACI/CAST
GRADE		 CAST ASTM CAST EN/DIN CAST UNS WROUGHT
UNS		 WROUGHT
GRADE
CG8M A351, A743, A744 – J93000 – AISI 317
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C Cr Ni Mo Other PREn
<0.08 19.5 10.0 3.3 –
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] Rm [MPa] A % Hardness [HB] Impact [J]
240 515 25 150-200 100
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, (δ ferrite) 7.75 16 16 500 1400
WORKING CONDITIONS / FABRICATION
Heat Treatment Weldability Machinability [100 = CF8M] Patternmaker’s Shrinkage [%]
Solution Annealing Excellent 2.6
Categoria: Austenitic
ACI/CAST
GRADE		 CG8M
CAST ASTM A351, A743, A744
CAST EN/DIN –
CAST UNS J93000
WROUGHT
UNS		 –
WROUGHT
GRADE		 AISI 317
CHEMICAL COMPOSITION (wt%, TYPICAL VALUES)
C <0.08
Cr 19.5
Ni 10.0
Mo 3.3
Other –
PREn
CASTINGS MINIMUM MECHANICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Rp0.2[MPa] 240
Rm [MPa] 515
A % 25
Hardness [HB] 150-200
Impact [J] 100
PHYSICAL PROPERTIES (AT 20°C, UNLESS OTHERWISE SPECIFIED)
Microstructure Austenitic, (δ ferrite)
ρ [kg/dm3] 7.75
α [μm/m∙K] (20 – 100 °C) 16
K [W/m∙K] 16
Cp [J/kg∙K] 500
Melting ΔT [°C] 1400
WORKING CONDITIONS / FABRICATION
Heat Treatment Solution Annealing
Weldability Excellent
Machining
Patternmaker’s Shrinkage [%] 2.6

Fondinox S.p.A © – All rights reserved