Understanding the core parameters and functional differences between new and old products is crucial when selecting alloy rolls. The following comparison highlights several key aspects: In terms of hardness, the new product utilizes more advanced processing technology, enhancing hardness and wear resistance. Its Rockwell hardness reaches HRA89-92, while the old product typically has HRA87-90. During long-term rolling, the new product maintains a smoother surface and reduces wear. Regarding strength, the new product optimizes the alloy composition ratio, improving its bending strength and enabling it to withstand greater rolling pressure.
The old product has slightly lower bending strength and is more prone to cracking under high-load rolling. In terms of toughness, the new product features improved microstructure, significantly enhancing toughness and providing superior impact resistance compared to the old product, reducing the risk of breakage during rolling. Regarding rolling precision, advancements in precision control technology result in more accurate dimensional precision in the new product, including inner and outer diameter tolerances, meeting higher rolling precision requirements. Overall, the new product demonstrates significant advantages in hardness, strength, toughness, and rolling precision. When selecting a product, if the rolling requirements are not high, older products can meet the basic needs; however, for high-precision, high-load rolling, newer products are a better choice.
