What is the composition of cast iron?

Cast iron, an alloy of iron that contains 2 to 4 percent carbon, along with varying amounts of silicon and manganese and traces of impurities such as sulfur and phosphorus. It is made by reducing iron ore in a blast furnace.

What is grade grey cast iron?

Gray iron, or grey cast iron, is a type of cast iron that has a graphitic microstructure. It is named after the gray color of the fracture it forms, which is due to the presence of graphite. It is the most common cast iron and the most widely used cast material based on weight.

What is the chemical composition of grey cast iron?

Grey Cast Iron (Gray iron) is so called because of the colour of the fracture face. It contains 1.5-4.3% carbon and 0.3-5% silicon plus manganese, sulphur and phosphorus. It is brittle with low tensile strength, but is easy to cast.

Which is the lowest grade of grey cast iron?

Grade 25 is the ASTM designation for this material. F11701 is the UNS number. It has the second lowest strength compared to the other variants of grey cast iron. The graph bars on the material properties cards below compare grade 25 cast iron to: cast irons (top), all iron alloys (middle), and the entire database (bottom).

What is the ASTM number for grey cast iron?

Grade 25 cast iron is grey cast iron in the as-fabricated (no temper or treatment) condition. Grade 25 is the ASTM designation for this material. F11701 is the UNS number.

What makes up 10% of a cast iron?

A 1% phosphorus in iron results in steadite which accounts for 10% by volume of the casting; the embrittling effect of steadite is evident. 2. Cooling Rate of Cast Irons:

What are the chemical requirements for cast steel?

A comprehensive chart of the chemical and tensile requirements of all major cast steel grades. Keywords cast steel, cast steel grades, ASTM, chemical requirements, tensile requirements Created Date