Materials have different properties with regard to hardness and toughness. Therefore it is necessary for the bond of the abrasive wheel to break down at a rate a suitable to expose the abrasive at the correct time. Failure to address these issues will cause burning and or even greater damage.
Hard and tough materials require a wheel which has a bond which breaks down more quickly than one that would be needed for a softer material. The harder the material the softer the bond of the wheel and the shorter the life. If the material is softer in nature then a harder bonded wheel can be used which also gives a greater life.
The General Purpose Wheel Abrasive Wheels have been designed to cover a range of materials of different properties. For the ferrous based materials an Alumina abrasive wheel is preferred but for non ferrous materials and Titanium alloys a Silicon Carbide wheel is provided.
Type 3H For very hard ferrous materials in the range Rc 60+
Type 2HA For tough materials such as Case Hardened Steels, Nickel based Superalloys Rc 40 – 55
Type 33H For medium hard ductile steels
Type 2H For general purpose ferrous materials Rc 25 – 40
Type H For sectioning of ferrous tube
Type T2 For titanium, aluminium and copper alloys
Wheels are available in sizes of 250 mm – 300 mm – 350 mm in packs of 10.
Bore size 32 mm