Unit price will be decided by engineering drawing.
Introduction:
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.
Compared with spheroid graphite pearlite roll (SGP), the acicular spheroid graphite roll (ASG) has better strength, toughness, and wear resistance. The acicular microstructure provides a higher strength and wear resistance than the pearlitic microstructure in SGP rolls. Additionally, the acicular graphite has a unique shape that helps to improve the toughness of the roll.
Manufacturing Process:
Material and Properties:
Grade |
C |
Si |
Mn |
Cr |
Ni |
Mo |
Nb |
Hardness (HS) |
Tensile Strength (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 |
Microstructure:
Applications:
Intermediate and finishing stands of bar, rebar, wire rod and medium section mills.
Forming, sizing, reducing and straightening rolls for pipe and tube mills.
Sleeves for Universal finishing stands (Horizontal & Vertical).
Photograph: