Cryogenics
ArcelorMittal Tubarão currently has three air separation plants where we produce argon, nitrogen and oxygen, all in liquid stage, in order to fulfill the company's internal requirements. Whenever there is production surplus, these products are commercialized by ArcelorMittal Tubarão and are intended for several different applications that range from industrial to medical processes, for a wide range of special applications in the fields of research, analysis, environment, chemical, etc.
Liquid Argon
Purity degree (ArcelorMittal Tubarão standard): contamination = 5 ppm of N2 and = 3 ppm of O2.
Characteristics: odorless, non-reactive, inert, and compressed at high pressures.
Most common applications:
- Steel mills - Metal Degassing - after the liquid steel is taken off the converter, it undergoes a degassing process where hydrogen and other impurities present in the melting process are then removed;
- Electric Welding;
- Thermo-chemical Treatment;
- Inertization;
- Atomic Absorption;
- Fiber Optics;
- Chemical Processes.
Liquid Oxygen
Purity degree (ArcelorMittal Tubarão standard): 99.40%.
Characteristics: colorless, highly oxidizing, and compressed at high pressures. Its oxidizing feature turns it into a harmful gas, requiring great care while handling it due to its high combustibility.
Most common applications:
- Steel mills - LD Converter - In this type of converter the Liquid Oxygen is utilized to promote the oxidation reaction, thus allowing the increase of temperature, viscosity and bubbling of hot metal in order to promote the chemical reactions necessary for separating the impurities, forming the slag and making the final product, which is the steel.
- Fiber Optics;
- Laser;
- Medical.
Liquid Nitrogen
Purity degree (ArcelorMittal Tubarão standard): contamination = 100 ppm of O2.
Characteristics: colorless, odorless, relatively non-reactive, suffocating, compressed at high pressures.
Most common applications:
- Steel mills - Metal Degassing;
- Coke Dry Quenching (CDQ) - at ArcelorMittal Tubarão coke oven, inert gas is utilized for quenching the coke on a dry basis (the only company in Brazil utilizing this CDQ process);
- Thermo-chemical Treatment;
- Atomic Absorption;
- Orthopedic surgery or neurosurgery (equipment);
- Laser;
- Chemical Processes.
Contact:
Eng. Pedro Augusto de Carvalho FilhoSales Executive
Tel: (+55 27) 3348-1084 
E-mail: pedro.carvalho@arcelormittal.com
ArcelorMittal Tubarão
Av. Brigadeiro Eduardo Gomes, 930
Jardim Limoeiro, Serra,
Espírito Santo
Zip Code 29163-970. PCE 41
Siderúrgica produtora de placas de aço, aços planos, bobinas e laminados a quente.
