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.
Manufacturing Process:
Manufacturing request various technologies, which include metallurgical technologies, heat treatment techniques and mechanical techniques. We
have production lines for both cast iron rolls and cast iron rings. The Cast Iron Roll production line has various of medium-frequency furnace (15t, 10t, 5t, 1.5t, and 1.0t). We also have the centrifugal casting machines with max capacity 15 tons. The diameter of our cast rings and sleeves can reach 1500mm and maximum length is 800mm with unit weight up to 6 tons.
SGA Material Composition and Performance 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, wire rod and medium section mills.
Forming, sizing, reducing and straightening rolls for pipe and tube mills.
Sleeves for Universal finishing stands (Horizontal & Vertical).
Audited Supplier 
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