Hastelloy C-276 has a higher molybdenum content.
Hastelloy C-276 alloy excellent resistance to a wide variety of chemical process environments, including strong oxidizers such as ferric and cupric chlorides, and hot contaminated media (organic and inorganic).
Hastelloy C-276 alloy excellent resistance to a wide variety of chemical process environments such as chlorine, formic and acetic acids, acetic anhydride, and seawater and brine solutions.
It is used in flue gas desulfurizations systems because of its excellent resistance to sulfur compounds and chloride ions encountered in most scrubbers. C-276 alloy has excellent resistance to pitting and to stress- corrosion cracking.
It is also one of the few materials that withstands the corrosive effects of wet chlorine gas, hypochlorite, and chlorine dioxide.
Hastelloy C-276 alloy can be forged, hot-upset, and impact extruded. Although the alloy tends to work-harden, it can be successfully deep-drawn, spun, press formed or punched.
All of the common methods of welding can be used to weld Hastelloy C-276 alloy, although the oxyacetylene process is not recommended. Special precautions should be taken to avoid excessive heat input.
Hastelloy C-276 is available in the form of plate, sheet, strip, billet, bar, wire, covered electrodes, pipe, tubing, pipe fittings, flanges, fittings.
Thermodynamically, titanium is a very reactive metal due to its negative redox potential, and it burns in the atmosphere at a temperature lower than its melting point. It can react with chlorine at 550 ?C and can also combine with other halogen gases although it absorbs hydrogen.
The melting of titanium can only occur in a chemically inert atmosphere such as a vacuum.
Titanium’s thermodynamic properties do not allow it to melt in normal conditions, because it becomes more reactive at elevated temperatures and can catch fire if the oxygen molecules are present in its environment.
Titanium is a transition metal that also exhibits similarities in its chemical behavior, especially in lower oxidation states, to that of chrome and vanadium.
Titanium is also a ductile metal, especially in an oxygen-free environment.
Titanium behaves as an inert element in the presence of oxygen and water, which means it does not react with oxygen and water at ambient temperature conditions.
Its glossy off-white appearance also makes it useful for metal coating or display.
This protective layer enables titanium to become an excellent corrosion-resistant element¡ªalmost as effective as platinum. This property makes it resistant to even strong liquids such as sulfuric acid, moist chlorine gas, chloride solutions, hydrochloric acid, and most organic acids.
Titanium has rather low thermal and electrical conductivity compared to other metals, although it exhibits superconducting properties when cooled below the 0.49 K temperature (its critical temperature).
Pure titanium is almost 99.2% pure and is a lustrous metal with low density and high corrosion resistance.
It is even resistant to strong liquids such as sulfuric acid, wet chlorine gas, chloride solutions, hydrochloric acid and most organic acids. However, it can burn in air and is the only element that will burn in the presence of nitrogen.
Titanium is considered to be a strong metal with an ultimate tensile strength of 434 MPa that makes 63,000 psi which is roughly equal to the strength of a low-grade steel alloy.
This means titanium can be used as a replacement for steel¡ªa major benefit, as it is 45% lighter than steel. It is twice as strong as aluminum and 60% denser.
When titanium is mixed with other metals, the alloys can reach a tensile strength of more than 1,400 MPa, which makes 200,000 psi.
However, titanium can lose its strength at temperatures greater than 430?C because it is not as hard as high grades of steel.
Titanium is a dimorphic element with a hexagonal form that slowly converts into a body-centered cube at an elevated temperature of 880 ?C.
This happens because the specific heat starts to increase dramatically as the transition temperature of 880 ?C is reached.
The chemical behavior of titanium metal has remarkable similarities with zirconium and silica.
Titanium, zirconium, and silica all belong to the first transition group in the periodic table.
Titanium resides in group 4 (IVB) of the periodic table, which means it is in the middle.
Titanium is a lustrous grey metal with low corrosion rates and high strength; it is used in a variety of applications.
The arrangement of elements in the periodic chart shows how the elements are related to one another chemically. As it is in the middle of the table, we know titanium exhibits properties between those of metals and non-metals.
