Mr. Desai,
The elements like C Mn and other has its own value and task in making an alloy.
Carbon (C) Carbon is an essential element in steel, it is added in specific amounts to control
the hardness and strength of the material. In general, increased carbon content reduces
ductility but increases tensile strength and the ability of the steel to harden when cooled
rapidly from elevated temperatures. With an increase in the amount of carbon, the hardness
and tensile strength of the steel also increase (which slows as the level of carbon rises). An
increase in carbon causes a decrease in both ductility and weld-ability.
Manganese (Mn) Fulfilling a number of important functions, Manganese is on of the most
important constituents of alloy steel. It acts as a mild DE-oxidizing agent. It combines with
the sulfur present to form globular inclusions of Manganese sulfides that are beneficial to
machining. It increases tensile strength and the harden-ability of steel. Will also increase
hardness, but not to the same degree as carbon. Ductility and weld-ability are decreased but,
again, to a lesser degree than caused by carbon.
Chromium (Cr) Increases the steel's harden-ability, corrosion resistance, and provides wear
and abrasion resistance in the presence of carbon. It is largely present in stainless steels,
usually ranging from 12 to 20%.
and like wise.
Sridhar.
From: hardik desai <hvdesai1284@gmail.com>
To: materials-welding@googlegroups.com
Sent: Monday, 18 February 2013 9:52 AM
Subject: Re: [MW:16797] Effect of High amount of manganese in chemical composition
can any one tell me the practical relation between carbon and Mn? why increase or decrease in one will effect the other. is it due to the balance of carbon equivalent or something?
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The elements like C Mn and other has its own value and task in making an alloy.
Carbon (C) Carbon is an essential element in steel, it is added in specific amounts to control
the hardness and strength of the material. In general, increased carbon content reduces
ductility but increases tensile strength and the ability of the steel to harden when cooled
rapidly from elevated temperatures. With an increase in the amount of carbon, the hardness
and tensile strength of the steel also increase (which slows as the level of carbon rises). An
increase in carbon causes a decrease in both ductility and weld-ability.
Manganese (Mn) Fulfilling a number of important functions, Manganese is on of the most
important constituents of alloy steel. It acts as a mild DE-oxidizing agent. It combines with
the sulfur present to form globular inclusions of Manganese sulfides that are beneficial to
machining. It increases tensile strength and the harden-ability of steel. Will also increase
hardness, but not to the same degree as carbon. Ductility and weld-ability are decreased but,
again, to a lesser degree than caused by carbon.
Chromium (Cr) Increases the steel's harden-ability, corrosion resistance, and provides wear
and abrasion resistance in the presence of carbon. It is largely present in stainless steels,
usually ranging from 12 to 20%.
and like wise.
Sridhar.
From: hardik desai <hvdesai1284@gmail.com>
To: materials-welding@googlegroups.com
Sent: Monday, 18 February 2013 9:52 AM
Subject: Re: [MW:16797] Effect of High amount of manganese in chemical composition
can any one tell me the practical relation between carbon and Mn? why increase or decrease in one will effect the other. is it due to the balance of carbon equivalent or something?
Regards,
Hardik...........
-- To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
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http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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