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SG Acicular Chill
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SG Acicular rolls are stronger and more wear resistant than SG Pearlitic Chill rolls and are capable of a higher hardness, especially in depth.
These enhanced properties are produced by increasing the alloy content - mainly nickel, chromium and molybdenum - which modifies the matrix structure from a pearlitic to an acicular form.
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Applications
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| Product |
Type of Mill |
Position |
| Plate |
2, 3 & 4 High |
Roughing & Finishing |
| Wide Strip |
2 & 4 High |
Roughing |
| Sheet & Coil |
Temper |
Backup Rolls |
| Sheet & Coil |
Double Reduction |
Backup Rolls |
| Sheet & Coil |
2 High Skin Pass |
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| Medium Section |
2 & 3 High |
Intermediate & Finishing |
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Typical Mechanical Properties
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Typical Hardness Gradient
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Micrograph Shell x 500
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Typical Analysis
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| Code |
Leeb E |
Shore C |
C |
Si |
Mn |
Ni |
Cr |
Mo |
| SGAC |
555-680 |
45-65 |
3.2/3.6 |
1.0/1.8 |
0.4/0.9 |
2.5/3.5 |
0.1/0.6 |
0.4/1.0 |
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