Forged Rolls

Forged rolls are manufactured through controlled open-die or closed-die forging from high-quality ingots, resulting in a refined, uniform grain structure that provides superior toughness, fatigue resistance, and reliability under cyclic loading. VSAG partners with Changzhou COMPS Metallurgical Equipment Technology Co., Ltd. to supply forged rolls for the most demanding backup, work roll, and intermediate roll positions.

• Backup rolls (all mill types)
• Work rolls for cold mills
• Intermediate rolls
• Mandrel bars
• Table rolls and guide rolls
• Straightener rolls

• Superior grain structure versus cast alternatives
• Higher toughness and fatigue resistance under cyclic load
• Consistent mechanical properties through full section
• Reduced risk of subsurface spalling and roll breakage
• Multiple reconditioning cycles over long service life

1. 01

   Vacuum degassed ingot production with low sulphur and phosphorus

2. 02

   Open-die forging with controlled reduction ratio (minimum 4:1)

3. 03

   Normalising and pre-heat treatment to prepare microstructure

4. 04

   Quench and temper to achieve hardness and toughness targets

5. 05

   Precision grinding and surface finish to drawing

6. 06

   Full mechanical testing, UT, and magnetic particle inspection

Documents available upon enquiry. Contact us to request technical documentation.

What forging ratio do you guarantee?

A minimum 4:1 forging ratio is documented for all forged rolls, ensuring a fully refined grain structure free of ingot segregation.

Can you supply test coupons for mechanical testing at the customer lab?

Yes. We can supply end-grain or side-grain coupons machined from the same heat and forging as the roll.