Acicular spheroid graphite cast iron roll is added with Ni, Cr, Mo to change the matrix into the acicular micro structure. Compared with Spheroid Graphite Pearlite Roll, SGA has better strength, toughness and wear resistance.
Grade
C
Si
Mn
Cr
Ni
Mo
Nb
Hardness
Tensile Strength
(HS)
(Mpa)
SGA I
2.90/3.60
1.20/2.20
0.20/0.80
0.20/1.00
2.50/3.00
0.50/1.00
-
60/80
﹥230
SGA II
2.90/3.60
1.00/2.00
0.20/0.80
0.30/1.50
2.50/4.50
0.50/1.00
-
70/82
﹥230
SGA III
2.90/3.60
1.00/2.00
0.20/0.80
0.30/1.50
2.50/4.50
0.50/1.00
0.40/1.20
72/85
﹥230
SGA
Material Composition and Performance Properties