Bulldozer Track Links CR4455 2396875 6Y1141 Fit For Caterpillar D7H

Bulldozer Track Links CR4455 2396875 6Y1141 Fit For Caterpillar D7H Part Number: 

BERCO CR4455/40, CR5069/40

CATERPILLAR 239-6875, 6Y1141, 9G2423

ITM G01070H2M00040, G01070H2S00040

KOMATSU ALL MAKES ZZYU0019

Why do we use 35MnBN as the raw material for our bulldozer track links? What are the specific applications and advantages of high-strength low-alloy steel and 35MnBN material in bulldozer track links?

The specific applications and advantages of high-strength low-alloy steel and 35MnBN material in bulldozer track links are mainly reflected in the following aspects:

Material Characteristics:

35MnBN: This material significantly enhances its hardness and wear resistance through quenching and tempering treatment, as well as medium-frequency quenching. Specifically, the core hardness after tempering can reach HRC32-36, while the surface hardness can achieve HRC50-54, with a hardening layer depth of 6-12mm. The chemical composition of this material includes C, Si, Mn, Cr, Mo, Ni, Al, P, S, Cu, B, and Ti, among others; these elements work together to improve the material's hardenability and mechanical properties.

High-strength Low-alloy Steel: This type of steel typically contains a proper amount of alloying elements (such as Mn, Si, Cr, etc.), which can significantly enhance its strength and wear resistance. For instance, the Mn element in 35MnB steel can effectively improve the hardenability of the steel and reduce the critical cooling rate, enabling a more uniform quench hardness even under unstable cooling conditions.

Application Fields:

Bulldozer track links: 35MnBN material is widely used in bulldozer chains, especially in high-load working environments such as mining, stone yards, and construction projects. Chains made from this material exhibit excellent wear resistance and tensile strength, extending the lifespan of the equipment.

Construction Machinery Components: 35MnBN material is also used to manufacture key components of construction machinery, such as bucket teeth, tools, blades, and wear parts for excavators and crushers, enhancing their wear resistance and service life.

Advantages:

High Strength and Wear Resistance: 35MnBN material significantly increases its hardness and wear resistance through quenching and tempering treatment, making it perform exceptionally well in high-load working environments.

Uniform Quench Hardness: Due to its excellent hardenability, 35MnBN material can achieve a more uniform quench hardness even under unstable cooling conditions, thereby improving the mechanical properties and service life of the product.