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HIGH SPEED STEEL MATERIALS |
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| High Speed Steel | | | Vanadium High Speed Steel | |
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| A medium-alloyed high speed steel that has good machinability and good performance. HSS exhibits hardness, toughness and wear resistance characteristics that make it attractive in a wide range of applications, for example in drills and taps. | | A vanadium-based grade that offers excellent wear resistance and hardness and good performance. This makes it especially good for use in tapping applications. |
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| Cobalt High Speed Steel | | | Non Cobalt Powder Metallurgy Steel | |
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This high speed steel contains cobalt for increased hot hardness. The composition of HSCo is a good combination of toughness and hardness. It has good machinability and good wear resistance, which makes it usable for drills, taps, milling cutters and reamers.
| | Has a fi ner and more consistent grain structure than HSCo resulting in a tougher product. Tool life and wear resistance is normally higher than HSCo and this grade has superior edge strength and rigidity. Mainly used for milling cutters and taps. |
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| Sintered Cobalt High Speed Steel | | | Chromium Steel | |
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HSCo-XP is a Cobalt high speed steel which has been produced using powder metallurgy technology. High speed steel produced by this method exhibits superior toughness and grindability. Taps and milling cutters fi nd particular advantage when manufactured from XP grade steel.
| | Chromium steel is a tool steel in which the principal alloying element is Chromium. It is used only for the manufacture of taps and dies. This steel has lower hot hardness properties in comparison with high speed steels. Suited for hand tap applications. |
| Grade | Hardness
(HV10) | C% | W% | Mo% | Cr% | V% | Co% | ISO Standard |
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| M2 | 810-850 | 0,9 | 6,4 | 5,0 | 4,2 | 1,8 | - | HSS |
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| M9V | 830-870 | 1,25 | 3,5 | 8,5 | 4,2 | 2,7 | - | HSS-E |
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| M35 | 830-870 | 0,93 | 6,4 | 5,0 | 4,2 | 1,8 | 4,8 | HSS-E |
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M42 | 860-960 | 1,08 | 1,5 | 9,4 | 3,9 | 1,2 | 8,0 | HSS-E |
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| - | 830-870 | 0,9 | 6,25 | 5,0 | 4,2 | 1,9 | - | HSS-PM |
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| ASP 2017 | 860-900 | 0,8 | 3,0 | 3,0 | 4,0 | 1,0 | 8,0 | HSS-E-PM |
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ASP 2030 | 870-910 | 1,28 | 6,4 | 5,0 | 4,2 | 3,1 | 8,5 | HSS-E-PM |
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ASP 2052 | 870-910 | 1,6 | 10,5 | 2,0 | 4,8 | 5,0 | 8,0 | HSS-E-PM |
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| - | 775-825 | 1,03 | - | - | 1,5 | - | - | - |
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CARBIDE MATERIALS |
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| Carbide Material | | | | |
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A sintered powder metallurgy steel, consisting of a metallic carbide composite with binder metal. The most central raw material is tungsten carbide (WC). Tungsten carbide contributes to the hardness of the material. Tantalum carbide (TaC), titanium carbide
(TiC) and niobium carbide (NbC) complements WC and adjusts the properties to what is desired. These three materials are called cubic carbides. Cobalt (Co) acts as a binder and keeps the material together. Carbide materials are often characterised by high compression strength, high hardness and therefore high wear resistance, but also by limited fl exural strength and toughness.
Carbide is used in taps, reamers, milling cutters, drills and thread milling cutters. |
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| Properties | HSS materials | Carbide materials | K10/30F
(often used for solid tools) |
| Hardness (HV30) | 800-950 | 1300-1800 | 1600 |
| Density (g/cm3) | 8,0-9,0 | 7,2-15 | 14,45 |
| Compressive strength (N/mm2) | 3000-4000 | 3000-8000 | 6250 |
| Flexural strength (bending) (N/mm2) | 2500-4000 | 1000-4700 | 4300 |
| Heat resistance (°C) | 550 | 1000 | 900 |
| E-module (KN/mm2) | 260-300 | 460-630 | 580 |
| Grain size (ìm) | - | 0,2-10 | 0,8 |
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