GG25 is a type of gray cast iron that is commonly used in various industrial applications due to its specific properties and characteristics. Here are some of the key features of GG25 gray cast iron:

1. Composition:

GG25 gray cast iron typically contains around 2.5% carbon and 1.5% silicon, along with small amounts of other elements like manganese, phosphorus, and sulfur.

The graphite flakes in the microstructure give it its characteristic gray color and provide certain properties.

2. Good Machinability:

GG25 gray cast iron is known for its excellent machinability, making it relatively easy to work with using conventional machining processes such as turning, milling, and drilling.

3. Good Wear Resistance:

Due to its graphite structure, GG25 offers good wear resistance, making it suitable for components subjected to abrasive wear in various applications.

4. Damping Capacity:

Gray cast iron, including GG25, has good damping capacity, which means it can absorb vibrations and reduce noise in applications where noise reduction is important.

5. Thermal Conductivity:

GG25 gray cast iron has moderate thermal conductivity, making it suitable for applications where heat dissipation is important.

6. Low Melting Point:

GG25 gray cast iron has a relatively low melting point compared to other metals, making it easy to cast into complex shapes.

7. Machinability:

GG25 gray cast iron is easy to machine, making it suitable for applications where intricate shapes and fine details are required.

8. Corrosion Resistance:

While gray cast iron is not as corrosion-resistant as some other materials, proper coatings or surface treatments can be applied to enhance its resistance to corrosion in specific environments.

9. Cost-Effectiveness:

GG25 gray cast iron is a cost-effective material for many applications, offering a balance between performance and affordability.

10. Applications:

GG25 gray cast iron is commonly used in the production of components such as machine frames, engine blocks, pump housings, valve bodies, and other industrial parts where its specific properties are beneficial.

11. Shock Absorption:

GG25 gray cast iron exhibits good shock absorption properties, making it suitable for components subjected to sudden impact or dynamic loading.

12. Dimensional Stability:

Gray cast iron, including GG25, maintains its shape and dimensions well under varying temperatures and loads, providing stability in applications where dimensional accuracy is crucial.

13. Fluidity:

GG25 gray cast iron has good fluidity during the casting process, allowing it to fill intricate mold cavities effectively and produce detailed castings.

14. Density:

GG25 has a relatively high density, which can be advantageous for applications where weight or mass is a critical factor.

15. Tensile Strength:

GG25 gray cast iron typically has moderate tensile strength, offering sufficient structural integrity for many applications.

16. Thermal Expansion:

Gray cast iron has a relatively low coefficient of thermal expansion, which can be beneficial in applications where dimensional stability under temperature variations is important.

17. Magnetic Properties:

GG25 gray cast iron is ferromagnetic, meaning it exhibits magnetic properties, which can be advantageous in certain applications.

18. Surface Finish:

GG25 gray cast iron can achieve a smooth surface finish, making it suitable for applications where aesthetics or reduced friction are important.

19. Recyclability:

Gray cast iron, including GG25, is recyclable and can be melted down and reused to produce new components, contributing to sustainability and environmental considerations.

20. Standards and Specifications:

GG25 gray cast iron is often produced and specified according to industry standards such as DIN EN 1561 (European standard) or ASTM A48 (American standard), ensuring consistency and quality in manufacturing and application.

GG25 gray cast iron's combination of properties makes it a versatile material used in a wide range of industrial sectors, including automotive, machinery, construction, and more. When selecting GG25 for a specific application, factors such as mechanical properties, wear resistance, thermal conductivity, and corrosion resistance should be considered to ensure optimal performance and longevity of the components.

Price range of GG25 gray cast iron

Keep in mind that actual prices may vary significantly based on market conditions, location, supplier, quantity ordered, and other factors. These examples are for illustrative purposes only:

1. Small Quantities:

For small quantities of GG25 gray cast iron, such as a few pieces or components, the price could range from $1 to $5 per kilogram, depending on the supplier and specific requirements.

2. Medium Quantities:

Ordering medium quantities of GG25 gray cast iron, such as a few hundred kilograms to a ton, may lower the price to around $0.8 to $2.5 per kilogram, again subject to market conditions and supplier pricing.

3. Large Quantities:

Purchasing larger quantities, such as several tons or more, could further reduce the price to approximately $0.5 to $1.5 per kilogram. Bulk orders typically command lower prices due to economies of scale.

4. Custom Orders:

Prices for custom orders, which may involve specific dimensions, shapes, or additional processing requirements, can vary significantly. Customized GG25 cast iron components may cost more per kilogram compared to standard stock materials.

5. Scrap or Recycled Material:

Recycled GG25 gray cast iron, obtained from scrap or reclaimed sources, may be available at a lower price point, ranging from $0.3 to $0.8 per kilogram, depending on the quality and source of the material.

Price range of GG25 gray cast iron in China

1. Small Quantities:

For small quantities of GG25 gray cast iron in China, such as a few pieces or components, the price may range from 4 to 10 Chinese Yuan per kilogram.

2. Medium Quantities:

Ordering medium quantities of GG25 gray cast iron, such as a few hundred kilograms to a ton, could cost around 3 to 8 Chinese Yuan per kilogram.

3. Large Quantities:

Purchasing larger quantities, such as several tons or more, might lower the price to approximately 2 to 6 Chinese Yuan per kilogram.

4. Custom Orders:

Prices for custom orders of GG25 gray cast iron in China, which involve specific dimensions or additional processing, could vary widely. Customized components may cost more per kilogram compared to standard stock materials.

5. Scrap or Recycled Material:

Recycled GG25 gray cast iron sourced from scrap or reclaimed sources in China may be available at a lower price point, ranging from 1 to 4 Chinese Yuan per kilogram, depending on the quality and availability of the material.

These examples are provided to give you a general idea of the price range for GG25 gray cast iron in China. For precise and current pricing information, it is advisable to contact local suppliers, foundries, or metal distributors in China for quotes tailored to your specific requirements and order quantities. Prices can fluctuate due to market dynamics, so obtaining multiple quotes and comparing offers can help you secure the best deal for GG25 gray cast iron in China.