Imprint Contact 868 Videos
900.000 Callings


Wheel change
Save Energy

Video Work Materials

Video Chemistry 1
Video Chemistry 2
Video Chemistry 3
Video Chemistry 4
Video Chemistry 5
Video Chemistry 6
Video Chemistry 7
Video Chemistry 8

Video Physics 1
Video Physics 2
Video Physics 3
Video Physics 4

Video Production car parts
Video 3D printer
Video 3D printer 2
Video Fuel
Video Petrol Trap
Video Knock Resistance
Video Air
Video Water

Video Steel Production
Video Steel 1
Video Steel 2
Video Steel 3

Video Copper Production
Video Titanium
Video Aluminum
Video Aluminum Body
Video Magnesium Alloys
Video Corrosion
Video Sandblasting
Video Plastics
Video Carbon Fiber
Video Glass Fibre Plastic
Video Glass Fibre
Video Fleece production
Video Graphene
Video Adhesive bonding
Video Adhesive bonding 2
Video Welded Joint
Video Metal Casting 1
Video Metal Casting 2
Video Metal Casting 3
Video Forging 1
Video Forging 2
Video Cold Stamped
Video Var. Metal Plate Depth
Video Clutch Housing

Video Glass 1
Video Glass 2
Video Glass 3
Video Glass 4
Video Glass 5
Video Glass 6

Video Grey Iron
Video Hardening
Video Rubber Suspension
Video Old Cars
Video Workshop
Video Waste Oil
Video Scrap Reusability
Video Environmental Protection
Video Waste

          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Grey Iron


Grey cast-iron - perhaps with a small amount of alloy components - is inexpensive to produce because it (still) belongs to the most widely used metals.

How it works

Grey cast-iron has, like all cast-irons, a carbon content of more than 2% and is easy to cast. Because the carbon in it is stored in rib form, it is also called cast iron with 'flake' graphite. Due to it being easily machined and its (e.g., in comparison to pure aluminium) excellent surface qualities it is especially suitable for the manufacturing of cylinder blocks or cylinder sleeve surfaces. Whereas aluminium has a high, slightly brash sound, cast-iron cylinder blocks produce far less vibrations and are better sound absorbers.

Nevertheless, the material aluminium, because of its considerably lower weight, successfully challenges the position of grey cast-iron. The manufacturers of grey cast-iron defend themselves by continually lowering the wall thicknesses. In the meantime, grey cast-iron is being processed as CGI (vermicular-> with worm-shaped graphite extension) in wall thicknesses of less than 3 mm. The full name is: Compacted Graphite Iron. Especially in highly stressed Diesel motors there is a reluctance towards the conversion to aluminium cylinder blocks, and use, at the moment, approx. 10% CGI.


Cast iron is also weld able under certain conditions, e.g., a very irregular heat development must be avoided. 08/08               Top of page               Index
2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email:

Our E-Book advertising