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Known as Zr702, the commercially pure zirconium (UNS R60702) is a hafnium-containing commercial grade of zirconium which is widely used in industrial applications such as chemical processing equipment. Due to the exceptional corrosion resistance of zirconium to an extensive range of …

The standard specification ASTM B523 (ASME SB-523) specified zirconium and zirconium alloy tubes for industrial applications. Distinguished from nuclear reactor applications, the industrial commercial grades of zirconium tubes are all hafnium-containing and are typically used for nonnuclear applications such as …

Zirconium has a hexagonal close-packed (hcp) crystal structure at room temperature, and it undergoes allotropic transformation to a body-centered cubic (bcc) structure at about 870°C (1600°F). The two microstructure characteristics result in strong anisotropy of zirconium and its alloys. Generally, …

Zirconium was discovered by Klaproth in 1789 and it is usually extracted from zircon ores together with hafnium. The properties of zirconium indicate that it is ductile and has useful mechanical properties similar to those of austenitic stainless steel and …

The paper-making processes generate a variety of corrosive media which have significant effects on the equipment. Before titanium was introduced to the pulp and paper industry, a plurality of materials such as glasses, leads, polyesters, ceramics, rubbers and stainless steels …

Seamless and welded titanium tubes are widely used in a variety of heat exchanger applications worldwide. These applications cover many industries such as steam turbine power plant, refineries, chemical plants, air conditioning systems, multi-stage flash distillation, desalination and vapor compression …

The sulfur-containing flue gases are typical pollutants which play a major role in the damage of lakes and forests by acid rain fallout. In the worldwide view, there are several industrial emission sources of sulfur dioxide containing flue gases: fossil …

The acetaldehyde is an important intermediate in petrochemical industry. It can be produced by the direct oxidation of ethylene in the presence of catalyst. The catalyst is corrosive hydrochloric acid solution with the addition of palladium chloride and copper chloride. …

The acetone is a very important organic compound and solvent in chemical industry. It is usually produced from propylene through the oxidation process. The reaction relies on a catalyst combination composed of copper chloride, palladium chloride, cupric acetate, and hydrochloric …

What Is Seawater Desalination? The drought and shortage of potable water issue has been affecting the whole world for many years. A lot of countries, such as China, South Africa, Egypt, India, Saudi Arabia, UAE, Singapore, etc, have turned their …

The thin-wall titanium tube is ideal for power station heat exchangers, mainly classified as thickness of 0.5mm and 0.7mm. Both seamless and welded tubes shall be made to ASTM B338/ ASME SB-338.  As titanium tubes may be subject to defects such as pores and …

Titanium tubes, either welded or seamless, made to ASME SB-338/ ASTM B338, are widely used for heat exchanger and condenser applications. These tubes are generally furnished in small diameter and thin wall. In spite of great advances in manufacturing processes, …

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