Carbon Steel G10450 is a specific type of carbon steel material that is commonly used in industrial manufacturing and machining fields.

1. Overview of G10450 Carbon Steel

G10450 is a medium-carbon steel grade under the American standard (ASTM or SAE) with high strength and hardness, as well as moderate toughness and machinability. It is widely used for manufacturing parts or structural components requiring high mechanical performance.

2. Chemical Composition

The chemical composition of G10450 typically includes the following main elements (actual content may vary slightly depending on standards and manufacturers):

Carbon(C) :0.43 - 0.50 %

Manganese(Mn) :0.60 - 0.90 %

Phosphorus(P) :≤0.040 %  

Sulfur(S) :≤0.050 %

Silicon(Si) :0.15 - 0.35 %

Iron(Fe) :Balance

3. Mechanical Properties

The mechanical properties of G10450 carbon steel typically include:

Tensile Strength:620 - 850 MPa

Yield Strength:380 - 550 MPa

Elongation:15 - 25%

Hardness:170 - 220 HB

Impact Toughness:Medium

Strength and Hardness: G10450 exhibits high strength and hardness, making it suitable for load-bearing components.

Toughness: Proper heat treatment, such as quenching and tempering, enhances its toughness and impact resistance.

4. Heat Treatment Processes

To optimize mechanical properties, G10450 carbon steel undergoes various heat treatment processes:

• Quenching: Heating the steel above its critical temperature (800°C - 850°C) and rapidly cooling it (via water or oil quenching) to increase hardness and strength.

• Tempering: Following quenching, tempering (at 400°C - 600°C) is applied to reduce brittleness and enhance toughness.

• Normalizing: Used to refine the microstructure and improve machinability.

5. Applications

• Mechanical Manufacturing: Gears, shafts, connecting rods, bolts, and other high-strength components.

• Automotive Industry: Transmission parts, chassis components, and structural elements.

• Tool Manufacturing: Cutting tools, molds, and dies.

• Construction and Engineering: Structural components and fasteners.

6.Related Standards

• SAE/AISI Standards: G10450 is a grade under the standards set by the Society of Automotive Engineers (SAE) and the American Iron and Steel Institute (AISI).

• ASTM Standards: In some cases, G10450 may conform to ASTM specifications, such as ASTM A29.

• International Standards: Equivalent grades in other countries include China's 45# steel (GB/T 699), which has similar composition and properties.

7. Comparison with Other Carbon Steels

• G10450

--Carbon Content (%):0.43 - 0.50    --Tensile Strength (MPa):620 - 850     --Typical Applications:Gears, shafts, connecting rods

• 1045

--Carbon Content (%):0.43 - 0.50    --Tensile Strength (MPa):620 - 850   --Typical Applications:Mechanical parts, tools

• 1020

--Carbon Content (%):0.18 - 0.23    --Tensile Strength (MPa):410 - 790   --Typical Applications:Low-strength structural components, bolts

• 1095

--Carbon Content (%):0.90 - 1.03    --Tensile Strength (MPa):850 - 1200  -Typical Applications:High-hardness tools, springs

8. Machining and Welding Performance

• Machining: G10450 has good machinability, but in high-hardness conditions, carbide cutting tools may be required.

• Welding: Due to its higher carbon content, G10450 has moderate weldability. Preheating and post-weld heat treatment are recommended to prevent cracking.

9.Conclusion

G10450 is a medium-carbon steel that offers high strength, hardness, and good machinability, making it widely applicable in mechanical manufacturing, the automotive industry, and tool production. Proper heat treatment further optimizes its mechanical performance.

We can process this alloy into round bars, plates, round pipes/square pipes, and coils according to your requirements.If you have any inquiries, please feel free to contact us. Our email address is: sale@bolaibao1.com. We look forward to your inquiry!