What is the hardest that grey cast iron can be?

What is the hardest that grey cast iron can be?

Because of their austenitic matrix and with flake graphite, the high-nickel cast irons are the toughest of all cast irons.

What is difference between cast iron and grey cast iron?

Like gray cast iron, white cast iron features many small fractures. The difference is that white cast iron features cementite below its surface, whereas gray cast iron features graphite below its surface. The graphite creates the appearance of a gray color, while the cementite creates the appearance of a white color.

What Gjs 400?

EN-GJS-400 ductile iron, also called as nodular iron, is a very good and common cast iron. It has good tensile strength and yield strength, and the largest elongation compared with other ductile iron grades. Moreover, it has the best impact property, casting and machining functions.

What causes grey cast iron?

Grey cast iron (a.k.a. gray iron castings) is a type of iron found in castings known for its grey color and appearance caused by graphite fractures in the material. In a grey iron casting, you can see little black flakes of graphite. These flakes cause fractures and cause the material to have a grey appearance.

What is the difference between GGG40 and GGG50?

GGG50 is easily machinable and can be used up to about 450 °C. In comparison to GGG40, this material is the ideal choice for applications where the level of wear and tear is higher, such as running wheels and wheel hubs (e.g. sweepers).

What is raw iron called?

Wrought iron
Wrought iron, one of the two forms in which iron is obtained by smelting; the other is cast iron (q.v.).

Which is the highest grade of grey cast iron?

Grade 60 cast iron is grey cast iron in the as-fabricated (no temper or treatment) condition. Grade 60 is the ASTM designation for this material. F14101 is the UNS number. It has the highest strength compared to the other variants of grey cast iron.

What kind of iron is 400-15 grade?

Sometimes referenced as a ductile iron BS2789 Grade 400-15 is a spheroidal graphite iron that possesses strength, impact and ductile properties of a different type to that of grey cast iron specifications, though with similar machining characteristics. We welcome export enquiries for sg iron bar.

Who are the suppliers of 400-15 SG iron?

BS2789 Grade 400-15 SG iron stockholders and suppliers, delivering to the whole of the UK. West Yorkshire Steel are suppliers of continuously cast bar, available in diameters and a limited range of flat sections.

What are the grade requirements for iron casting?

The followings are the grade requirement to the chemical components and physical properties, and also grade comparison chart. At the same time, we listed the main content of material standards using in USA, China, Germany, Europe and International.