• Slitting HSS rolls provides high abrasion resistance, making them highly durable under thermal load.
• With a roll barrel surface hardness of HSD78-83 and hardness drop ≤3HSD/10mm, slitting high-speed steel rolls support 8-10 cycles with a small single regrinding value.
• A single group of grooves in slitting HSS rolls can reach 4-5 times the steel pass amount of nodular cast iron rolls, and above 2 times higher than high boron rolls.
• Slitting high-speed steel rolls allow continuous use for 22-24 hours before changing grooves, reducing malfunction and energy consumption.
• There is no spall phenomenon, and slitting HSS rolls are easy to be processed, making them suitable for the pre-slitting stand of bar multi-strand slitting rolling lines.

Product Introduction of  Pre Slitting HSS Rolls:

Slitting high-speed steel rolls are made from patented high-speed steel containing high-alloy elements such as tungsten (W), molybdenum (Mo), vanadium (V), and chromium (Cr). Key characteristics include:
•    High Hardness and Red Hardness: Maintains surface hardness of HSD73-78 or above even under high-temperature conditions.
•    Excellent Wear Resistance: The hard particles and refined grain structure of high-speed steel significantly enhance wear resistance.
•    Thermal Fatigue Resistance: Adapts to high-temperature and thermal cycling environments, reducing the risk of surface cracking and spalling.
•    Good Toughness: Sufficient strength and toughness to withstand high loads and impacts during rolling.

Product Advantages of Slitting HSS Rolls

•    Wear Resistance: Performs well under high-speed and heavy-load conditions, ensuring a long service life.
•    Thermal Stability: Maintains dimensional stability and efficient performance even at temperatures of 900-1050°C.
•    High Precision: High machining accuracy ensures consistent dimensions during multi-line slitting rolling.
•    Low Replacement Frequency: Reduces downtime and increases production efficiency.

Applications of Slitting HSS Rolls

Slitting HSS rolls are widely used in the following scenarios:
•    Bar Split Rolling: Used for multi-line rolling of high-strength bars to enhance production efficiency.
•    Wire Rod Split Rolling: Ensures consistent product surface quality and dimensional accuracy in high-speed wire rod production.
•    Special Steel Rolling: Suitable for processing challenging materials like high-alloy steel and stainless steel.

Physical Properties

Chemical Analysis (Proportion differert based on HSS Grade)