Product Introduction

Tube cracking furnace is the main technology for ethylene production today. The cracking tube is used in the radiant section, also known as the radiant section furnace tube. The cracking tube is arranged in the radiation chamber, and a certain number of burner cracks are installed on the furnace side wall and furnace top or furnace bottom of the radiation chamber. The working temperature of the cracking tube is 1000°C-1150°C, and it is an important equipment for ethylene cracking furnace. The furnace tube components of the radiant section of the ethylene cracking furnace mainly include centrifugal casting tubes, centrifugal casting tube bends, static casting tube fittings, forgings and other components. Using the metal centrifugal casting process, the conversion tube and the ethylene cracking tube are formed by boring the inner hole, machining the welding groove on a lathe, and assembling and welding.
Our production and technical team has nearly 30 years of experience in this industry, and has the ability to produce a furnace tube for an ethylene cracking furnace with an annual output of 1 million tons per month. To manufacture these components, we strictly follow the following international standards for centrifugal casting and static casting:
Centrifugal casting: HG/T 2601, ASTM A608, DIN 10295, JIS G5122
Static casting: HG/T 3673, ASTM A351
The material grades are strictly in accordance with the standards of customers in different countries. The commonly used material grades are:
ZG40Cr25Ni35Nb, ZG40Cr35Ni45Nb, HP-Nb, HT50, GX40NiCrSiNb35-26, GX40NiCrNb45-35, SCH24XNb, etc.
Centrifugal casting tube supply specifications:
Cracking furnace tube: outer diameter 50mm-200mm, wall thickness 5mm-20mm;
Air collecting pipe: outer diameter 100mm-400mm, wall thickness 10mm-40mm;
Static casting supply specifications:
90° elbow, 180° elbow, tee pipe, palm pipe, special-shaped three-dimensional elbow, hanging parts, etc.