Gray Iron Casting
Gray iron casting forms with the flake shape of the graphite molecules found in the metal. The gray color comes from the fracture in the metal. The break that comes along the graphite flakes gives off that gray color.
This type of casting has great properties to offer. It has high levels of compressive strength. It is also good in deformation resistance, tensile strength, and oxidation resistance. It also has a low melting point.
Common Applications
There are lots of applications and uses that people can get from gray iron casting. Different industries rely on it in getting the components needed for their operations. The common applications and uses of gray iron casting include:
? Machinery Bases
? Gears
? Automotive parts and equipment
? Stove parts
? Tractor parts
? Wind turbine housings
? Weights
? Counterweights
? Pumps
There are lots of industries that enjoy gray iron casting. It is able to create different components and products important for many industries. Gray iron casting has different grades to specify the properties that it will have.
Common Gray Iron Grades
? Class 25
? Class 30
? Class 35
? Class 40
Class 25 is the most used gray cast iron. It offers exceptional machinability, heat resistance, and corrosion resistance.
Choosing Class 30 is imperative when the product needs to be strong. It can also provide wear-resistant end products that can withstand high temperatures.
The other grades are rarely used but there are still some products that may need the use of these grades.
Ductile Iron Casting
Ductile iron casting shows round graphite structures found in the metal. It is also known as nodular cast iron. The ductile iron casting comes from molten iron added with carbon. The iron-carbon combination makes this casting efficient against fatigue and wear.
Ductile iron casting is a preferred type of casting because of its great properties. It has good hardness and tensile strength. Ductile iron also has high compressive strength, fatigue strength. It is corrosion-resistant and good at withstanding impact. These properties make it a popular casting as it shows reliability.
Common Applications
? Agricultural tractors
? Oil well pumps
? Diesel trucks
? Machine frames
? Automotive components
? Pump housings
? Gearboxes
? Wheels
Industries relying on ductile iron casting enjoy the different properties that it possesses. It is effective in providing industries the components they need to operate and well.
Common Ductile Iron Grades
? Grade 60-40-18
? Grade 65-45-12
? Grade 80-55-06
? Grade 100-70-03
? Grade 120-90-02
The grades of the ductile iron casting will determine the strength the material has. The choice of grade to use should depend on the properties needed by the product.
Gray Iron Casting VS Ductile Iron Casting
Gray iron casting and ductile iron casting are both useful. They are efficient materials for industries and trades. There are also properties where the two have similarities and differences.
Ductility
Ductility is the ability of the material to expand or stretch without getting broken. Ductile iron casting has a better ductility level than gray iron casting. Adding magnesium to ductile iron makes it stronger and can withstand extreme tension.
Tension Strength
Ductile iron casting has better tensile strength. It can withstand extreme tension and pressure. Gray iron casting also has the ability to endure tension. But its level is still inferior as compared to ductile iron casting.
Impact Strength
Ductile iron castings can endure a greater impact. This makes its impact stronger than the gray iron casting. It can resist at least seven-foot pounds of impact.
Vibration Reduction
Gray iron casting can reduce vibration more than ductile iron casting.
Thermal Conductivity
Gray iron casting has better thermal conductivity than ductile iron casting.
Applications
Gray iron casting focuses on more non-critical applications. This is because it is lesser in strength. With ductile iron casting, it can do engineered applications due to its strength.
ABOUT KEVA
Keva Casting is a professional casting company that focuses on Construction, Machinery, Automobile, Hardware, Pipeline and many other industries.
We provide top quality products with the best service based on our complete production chain including our own mold design, advanced production techniques, and full management of the supply chain. Keva Casting has two factories located in Zhucheng, China's Shandong province.
We use "shell molding", which is a new technique that has been developed in recent years.This new technique has simplified production procedures and reduced air pollution compared with traditional sand casting and investment casting. Shell making and core making are faster to ensure production in enormous quantities. The dimensions and surface finishing are satisfactory for all kinds of industrial requirements. Besides supplying our own formwork & scaffolding systems, our casting products also supply OEM services in various industries.