Showing posts with label Chromium Iron. Show all posts
Showing posts with label Chromium Iron. Show all posts

Add properties to the alloy steel

Add properties to the alloy steel

I want to know if it is possible to make regular steel "stainless". From what I understand stainless consist of chromium about 10 percent I think. Any way I'm wondering if properties can be added in a process or can this only be possible during actual manufacturing of the steel. And I'm not talking about chrome like stainless steel that's not to shiny.
I was figuring that ghost rider so you really can't add properties to the alloy steel. But I assume if some somehow there can be a conducting process like how people dip it to chrome.im not sure


Best answer:
Answer by Ghost Rider
no an alloy essentiallly does not exibit its constituent properties
if you want to add anymore the thing should be molten and hot and homogenous homogenous being the key word
and no ss essentiallly mean that thing only


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The primary metallic element that's added to steel to make stainless steel is?

The primary metallic element that's added to steel to make stainless steel is?






Best answer:
Answer by Steve O
chromium

http://en.wikipedia.org/wiki/Stainless_steel
"Stainless steel differs from carbon steel by the amount of chromium present."
..."stainless steel... is defined as a steel alloy with a minimum of ... 11% chromium content by mass."




Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard and brittle metal[2] which takes a high polish, resists tarnishing, and has a high melting point. The name of the element is derived from the Greek word "chrōma" (χρώμα), meaning colour,[3] because many of its compounds are intensely coloured.


Chromium oxide was used by the Chinese in the Qin dynasty over 2,000 years ago to coat metal weapons found with the Terracotta Army. Chromium was discovered as an element after it came to the attention of the western world in the red crystalline mineral crocoite (lead(II) chromate), discovered in 1761 and initially used as a pigment. Louis Nicolas Vauquelin first isolated chromium metal from this mineral in 1797. Since Vauquelin's first production of metallic chromium, small amounts of native (free) chromium metal have been discovered in rare minerals, but these are not used commercially. Instead, nearly all chromium is commercially extracted from the single commercially viable ore chromite, which is iron chromium oxide (FeCr2O4). Chromite is also now the chief source of chromium for chromium pigments.


Chromium metal and ferrochromium alloy are commercially produced from chromite by silicothermic or aluminothermic reactions, or by roasting and leaching processes. Chromium metal has proven of high value due to its high corrosion resistance and hardness. A major development was the discovery that steel could be made highly resistant to corrosion and discoloration by adding metallic chromium to form stainless steel. This application, along with chrome plating (electroplating with chromium) currently comprise 85% of the commercial use for the element, with applications for chromium compounds forming the remainder.
Trivalent chromium (Cr(III)) ion is possibly required in trace amounts for sugar and lipid metabolism, although the issue remains in debate.[4] In larger amounts and in different forms, chromium can be toxic and carcinogenic. The most prominent example of toxic chromium is hexavalent chromium (Cr(VI)). Abandoned chromium production sites often require environmental cleanup.


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How much % of chromium is needed to make iron corrosion protected ?

Question by Mira S: how much % of chromium is needed to make iron corrosion protected ?
a question about metallurgy of stainless steel



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