High Speed Rolls
1.Centrifugal casting
2. ISO9000-2008
3. Casting spare part for rolling mill
4. For finishing stand
5. Good performance
1)Feature
The shell of centrifugal casting high speed steel roll is a high carbon alloy steel containing Cr, Mo, W, V and Nb. The microstructure consists of complex carbides embedded in a tempered martensitic martrix. Control of the carbon and a complex heat treatement allows the optimization of wear resistance, thermal fatigue resistance and oxide film formation, whilst maintaining low residual stress values.
2) Chemical composition
Material: HSS --- C:1.60-2.30, Si:0.30-0.90, Mn:0.20-1.80, W:1.00-4.00, V:2.00-6.00, Ni:0.30-1.50, Cr: 3.0-6.0, Mo: 3.00-6.00
3)Physical performance
Material: HSS Barrel hardness:75-90 HSD Tensile strength: ≥450Mpa
4)Application scope
HSS rolls are mainly used as the work rolls in the hot strip mills and the finishing stands of bar mills, rings of the universal section mills and finishing stands of the high speed bar mills and so on.
5)Hardness
Serial No. Surface hardness of barrel roll Recommended for
1 ≥95HSD work roll for pinch pass mill and finishing mill
2 90-98HSD cold work roll of metal plate and strip
3 75-90HSD cold work roll of metal plate and strip
| barrel roll diameter |
surface hardness of barrel roll |
hardening layer hardness/mm |
| |
|
2% Cr |
3% Cr |
5% Cr |
| ≤300 |
≥95 |
6 |
15 |
15 |
| ≤300 |
90-96 |
8 |
20 |
20 |
| ≤300 |
75-90 |
10 |
- |
- |
| 301-500 |
≥95 |
7 |
20 |
25 |
| 301-500 |
90-96 |
12 |
25 |
30 |
| 301-500 |
75-90 |
14 |
- |
- |
| >500 |
≥95 |
8 |
20 |
25 |
| >500 |
90-96 |
13 |
25 |
35 |
| >500 |
75-90 |
15 |
- |
- |
We specialize in exporting different kinds of mill rolls, such as follows:
1)CAST IRON ROLLS
Alloy Chilled Cast Iron Rolls
Alloy Indefinite Chilled Cast Iron Rolls
Pearlitic Nodular Cast Iron Rolls(Centrifugal)
Spiculate Bainitic Nodular Cast Iron Rolls(Centrifugal)
Alloy Nodular Cast Iron Rolls(Centrifugal)
2)CAST STEEL ROLLS
Alloy Cast Steel Rolls
Adamite Steel Rolls
Graphite Steel Rolls
High Speed Steel Rolls
Centrigugal Casting Hi-Carbon Steel Adamite Rings
They are mainly applied to finishing mill, hot&cold rolling mill work rolls, back-up rolls. Adamite roll or high speed steel roll used in the early finishing stands of a lot strip mill.
Description:
1)Material: Alloy Steel, Alloy Iron, Ductile Iron and so on
2)Size: According to clients' drawing
3)Standard: GB, AISI, SAE, ASTM/ASME
4)Hardness: According to clients' demand
5)Chemical Composition: According to Clients'demand.
6)Inspection: Ultrasonic Inspection, Microstructure Test
7)Packaging: Steel Frame
8)Payment: T/T or L/C
Our products are high in quality and reasonable in price. We can guarantee their quality
We can supply all kinds of Work Roll.
We hope to establish longtime cooperate relationship.
If you are interesred in our produccts,
Plese contact me without hesitate.
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