Successful Project Completion at Jiangsu Changbao Steeltube Ltd.

 

We are proud to share the successful completion of a major induction heating project for our customer Jiangsu Changbao Steeltube Ltd.,Co. Jintan, China - one of the world's leading producers of seamless stainless steel tubes.

Our team at extrutec group delivered a fully inductive billet heating line for a 30 MN extrusion press, designed to process demanding materials including austenitic, duplex and super duplex stainless steels, as well as nickel-based alloys such as Inconel.

Key project highlights:
⚡ 8 MW installed power
⚡ Fully inductive heating concept:

  • Horizontal preheating up to 800°C
  • Vertical intermediate heating up to 1150°C
  • Vertical final heating up to 1300°C

⚡ First industrial implementation of a new switchgear architecture based on
IGBT Direct Converter technology in this application field
⚡ Processing billets from Ø145–220 mm and lengths up to 1000 mm

The project was engineered, manufactured, installed, commissioned, and optimized within just 14 months, representing approximately 18,000 project hours.

The new heating system delivers:
✔ Precise and reproducible temperature control
✔ Excellent temperature uniformity
✔ High flexibility across billet sizes and alloy grades
✔ Improved process stability
✔ Optimized conditions for demanding extrusion processes
✔ Enhanced energy efficiency

Most importantly, the system provides our customer with a future-oriented technology platform that combines operational flexibility, process reliability, and consistent product quality.