The chain's superior performance does not stem from the steel itself, but rather from its core process—heat treatment. This process directly determines the chain's load-bearing capacity, wear resistance, and reliability.
Chains must withstand enormous tensile forces, severe wear, and repeated impacts during operation. Heat treatment, through a precise "quenching + tempering" process, cleverly resolves the inherent contradiction between the hardness and toughness of steel.
Quenching hardens the steel, creating a wear-resistant "armor." However, this alone makes the metal brittle. Subsequently, tempering acts as a crucial balancing act. It carefully reduces internal stresses and dramatically increases toughness and ductility, preventing sudden catastrophic failure under impact, without significantly compromising the necessary hardness.
Chains that are not properly heat-treated will either wear and elongate rapidly due to insufficient hardness, or break suddenly under impact due to insufficient toughness, both of which pose serious safety hazards.
Therefore, heat treatment is the key to giving the chain its soul. Through scientific tempering, it forges ordinary steel into an "industrial backbone" that can bear heavy loads and last a long time, which is the fundamental guarantee of its quality and safety.