vermicular cast iron      ASTM A842-97

Graphite vermicular cast iron, excellent machining, mainly used to replace grey cast iron, with greater mechanical properties: good thermal conductibility and vibrations dampening.



STANDARD TENSILE
STRENGHT Rt [N/mmq]
YIELD
STRENGHT
Rp0.2
[N/mmq]
ELONGATION
%
HARDNESS
BRINELL HB
GGV-250 250 175 3 179 max
GGV-300 300 210 1,5 143-207
GGV-350 350 245 1 163-229
GGV-400 400 280 1 197-255
GGV-450 450 315 1 207-269
         
         
         
         


grey cast iron      UNI EN 156

Lamellar graphite cast iron: excellent machining recommended for little stressed components excellent thermal conductibility and vibrations dampening.



 
STANDARD TENSILE
STRENGHT Rt [N/mmq]
YIELD
STRENGHT
Rp0.2
[N/mmq]
ELONGATION
%
HARDNESS
BRINELL HB
GJL-100 100-200 - 0.3-0.8 <180
GJL-150 150-250 - 0.3-0.8 135-215
GJL-200 200-300 - 0.3-0.8 155-235
GJL-250 250-350 - 0.3-0.8 175-245
GJL-300 300-400 - 0.3-0.8 185-255
GJL-350 350-450 - 0.3-0.8 195-265