D6M Dozer Track Link Assembly CR5465 Fit For Caterpillar

D6M Dozer Track Link Assembly CR5465 Fit For Caterpillar also can be matched with the following models: 

CATERPILLAR

D5H LGP 2SD-5552-UP D5H LGP 4KD-5589-UP  D6M LGP 4GS-1-UP

D6M LGP 4JN-1-UP D6N L

LIEBHERR

PR724LGP 1UP PR724XL 1UP

Material Comparison of Dozer Track Link Assembly

The material of the dozer track link assembly is typically 40Mn and 35MnB, and these two materials have some differences in performance and applications.

40Mn is a medium-carbon alloy steel that offers high strength, hardness, and wear resistance while also possessing good toughness. This material can achieve better performance through appropriate heat treatment processes, such as quenching and tempering.

35MnB is a slightly lower carbon content alloy steel, with manganese (Mn) as its primary alloying element, which helps enhance the steel's hardenability and lowers the critical cooling rate. As a result, 35MnB can still achieve a uniform hardened layer under unstable cooling conditions. After quenching and tempering, the core hardness of 35MnB can reach HRC 32-36, while surface hardness after medium-frequency quenching can reach HRC 50-54, with a hardened layer depth of 6-12 mm. This ensures its strength and wear resistance.

In summary, the main differences between 40Mn and 35MnB as materials for dozer tracks lie in their carbon content and alloying elements. 40Mn has higher strength and hardness, making it suitable for manufacturing parts subjected to heavy loads, while 35MnB is favored for applications requiring wear resistance and a certain level of toughness due to its good hardenability and uniform hardened layer.

Limitations of 40Mn:

• Brittleness: Although 40Mn has high strength, it may experience direct fracture in certain situations, potentially affecting the stability and safety of the track.

Advantages of 35MnB:

• Wear Resistance and Tensile Strength: 35MnB offers high wear resistance and tensile strength, enabling it to maintain good performance in harsh working environments.
• Less Brittle: Compared to 40Mn, 35MnB is less prone to breaking, maintaining good integrity even under heavy loads.

To fully enhance the working efficiency of bulldozers, our dozer track chains typically use 35MnB material, taking into account the working conditions of the bulldozer.