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What corrosion resistence of steel is improved by adding what alloying element?
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Why do you inject oxygen scavenger in boiler feed water?
Oxygen is a highly reactive gaseous element. In the presence of steel, the corrosion rate of oxygen doubles for each 30°F rise in temperature. For example, in a boiler system operating at 400 psig and 444°F, the corrosion rate for oxygen is 256 times more reactive than at room temperature. Sodium sulfite is a highly effective oxygen scavenger Erythorbate, Diethyl hydroxylamine, Methyl Ethyl Ketoxime, Carbohydrazide and Hydroquinone are other alternatives.
What was the last element discovered?
Francium (Atomic Number 87), the Last Discovered Natural Element
A pure substance carbon for example?
element
What does Hg mean?
Hg means "hydrargyrum". Basically it is the symbol of Mercury element naturally occurs. Mercury is one of Five Metallic element which are liquid at room temperature & pressure.
What is the chemical symbol for stainless steel?
Stainless steel is not an element, but an alloy formed by the combining of carbon, iron, manganese, chromium, vanadium, tungsten, and other various elements.
Does carbon steel rust?
Carbon steel is a type of steel in which the main alloying element is carbon. It is prone to rusting but treating it can offer a small amount of protection against corrosion.
Is iron used for making steel?
yes. steel is an alloy in which major alloying element are iron and carbon along with other minor alloying element such as zinc, chromium etc .
Is a foil a element?
It is quite pure but does have traces of alloying metal in
How is chromium used commercially?
It is THE key alloying element of stainless steel.
Is chromium an element or an alloy?
It is the 24th element. The confusion arises because it is the key alloying element added to steel to make it stainless.
What was arsenic used for in the 1600s?
- alloying element for bronze - poison used by murderers
Is carbon an alloyed steel?
No. An alloy is an intimate mixture of 2 or more metals. Steels are actually regarded as being of 2 basic types - carbon and alloy. Carbon is an alloying element in carbon steels; there are other examples, such as: oxygen is regarded as an alloying element in zircaloy, silicon is an alloying element in aluminum and ferro-silicon, phosphorus in some types of bronze, etc. (not important if it is a metal or a non- metal).
Is stainless steel a nonalloy steel?
Stainless steel is an Alloy steel because it contains chromium as an alloying element - steels without alloying elements are called carbon steels.
What element is resistant to corrosion in seawater?
Titanium and zirconium, for example, are resistant to corrosion in seawater.
How can corrosion be reduced?
The corrosion on iron can be reduced by suitable thin layer of element to be electroplated.
What does maganese make?
Manganese is a key alloying element in many types of steel and stainless steels.
Is manganese metallic or non metallic?
Manganese is a metal. It is also used as an alloying element in steel.
