Tara TMT Saria price details for today 2023 are available here. Tara TMT is the famous brand in cities of Uttar Pradesh like Varanasi, Jaunpur and Allahabad.
Tara TMT Saria price is Rs. 84/- per Kg for 8mm size and Rs. 82/- per Kg for 25mm size bar.
In this post I have full rate list of Tara TMT Saria as per Kg and you will get to know more about steel and related materials.
Tara TMT Saria Price Today Varanasi, Jaunpur, Allahabad
Below is the price list chart of Tara TMT Saria.
| Tara TMT Saria Size | Price Per Kg |
| 8mm | Rs. 84/- |
| 10mm | Rs. 83/- |
| 12mm | Rs. 81/- |
| 16mm | Rs. 82/- |
| 20mm | Rs. 82/- |
| 25mm | Rs. 82/- |
Heat Treatment – The Science of Forging
These notes are taken from metals experts like steel and aluminium.
Steel is the most important material to human society.
It has been the skeleton of human industry for centuries, and the advent of the methods to mass produce it from iron ore was the impetus to transform human society from a mostly agricultural lifestyle to Urban Industrialisation.
It forms the backbone of our skyscrapers, it paves the way for our railways, it shapes the engines that powers our society, and the very tools that forge these objects are made from steel.
We have spoken before about how the refining processes of iron determines whether the resulting material will be steel or iron and how the exact percentage of carbon present in the material has dramatic results on the final material properties, and how the production methods through time has taken steel from an expensive material reserved for swords, armour and toolmaking, to one that has permeated into nearly every technology we use in ourlives.
But I failed to tell why that simple addition of carbon has such a huge effect on the iron, turning it from a relatively weak material to one capable of launching an Industrial Revolution, which is what we are going to learn about today.
Much of our knowledge in crafting steel was passed down over the centuries from blacksmith to blacksmith, creating tools for their communities, so to learn more about this amazing material and how blacksmiths carefully tailor it’s material properties.
I visited Alec Steele’s workshop to create my own knife from scratch.
We started our forging process with round stock 1055 steel with 0.55% carbon content, placed it in the forge and gradually shaped it with a power hammer to a rectangular bar that could be more precisely shaped into the shape of our blade using a 3 pound hammer that my wee arms struggled to swing after an hour.
Once we had roughed out the shape we began to grind and refine our blade.
Eventually producing our blade blank that would later be grinded to it’s final shape, but before that could happen we needed to perform some metallurgy wizardry through the heat treatment process.
To drive home how important this step is, we tested 4 samples of the same material at different stages of the heat treatment process.
This was our sample before the heat treatment process, which you will quickly see was the weakest of the bunch.
This is the normalised sample, which was ductile with a low yield stress.
It took several hammer blows, which it absorbed through plastic deformation, not ideal characteristics for a sword or knife.
Next we tested our quench hardened sample, which is stupid and dangerous and should not be tried at home.
This fractured explosively and tore a hole through Alec’s reflector.
Finally we tested the tempered material, which absorbed every hammer blow with minimal plastic deformation and only broke when we cut a notch into the material to create a stress concentration point.
This material is tough, capable of absorbing energy without deforming permanently, and hard allowing it to resist damage to the cutting edge.
It is the ideal material for a blade.
If any of these terms confused you, I created a video called Material Properties 101 that you can check out to get a better understanding of material property terminology.
So how can the same steel alloy change so radically by simply applying heat?
Well this is the magic of the iron carbon alloy.
We can careful control how the internal metallic crystal structure forms with heating and cooling cycles.
First let’s see how adding carbon to iron affects it’s crystalline structure.
With no carbon present pure iron will form a crystal structure called body centred cubic with an iron atom at each of the eight corners and another in the centre.
Each crystal structure has a direction it most easily wants to deform, called a slip plane.
For body centred cubic the slip plane occurs along this planes.
Metals with Body centred cubic crystals like iron and tungsten tend to be harder and less malleable than metals with face centred cubic crystals like aluminium, lead and gold.
When a metal is cooling, these crystals grow from individual nucleation points and form grains where each grain has the same orientation of slip plane but neighbouring grains may not have the same slip plane.
Let’s think about this 2 dimensionally, when a force is applied, the grain wants to slip in a particular direction, and passes the force onto the next grain in that direction too, but this grains slip plane is at a different angle, so that force needs to be greater in order to cause deformation.
It’s like trying to push a train down a railway track, by pushing on its side.
It’s not going to go anywhere easily.
So smaller and more numerous grains results in a stronger material.
Pure iron tends to always has the same crystal structure as it cools and it’s crystal structure doesn’t change meaningfully with heat treatment.
This is where alloying with carbon comes in.
To explore this let’s look at our phase diagram for carbon steel.
On this diagram we have our carbon content percentage on the x-axis and the temperature of the metal on the y-axis.
This tells us the crystalline structure of the metal at various temperatures and carbon contents.
On the left hand side we have pure iron, which as we explained earlier forms only one crystal structure, called ferrite.
As we move across the diagram to the right hand side, less and less of the crystal structure forms ferrite, and more forms an iron carbide alloy, commonly called cementire.
Now if we move up in temperature we start to see these lines that represent transitional temperatures, where the crystal structures of the steel begin to transform into a new crystal structure called Austenite.
Moving further up again we see lines representing the transition of the material to a liquid state.
Austenites primary difference to ferrite is that it forms that face centred cubic crystal structure that we saw early, while ferrite is body centred cubic.
And while this packing pattern is denser than body centred cubic, it does open up spaces in the crystal structure that interstitial carbon atoms, which are smaller than iron, can snuggly fit.
Allowing austenite to have a higher solubility to carbon over ferrite.
Using all of this information, let’s take our 1055 steel with 0.55% carbon content and see how it transforms from the start of our heat treatment cycle to the end.
I will explain you more details in ana other upcoming steel related post.
This post was about Tara TMT Saria details and its price in Varanasi, Jaunpur, Allahabad and many other cities in Uttar Pradesh.
Check other posts like Ultratech Cement and Gallant TMT Saria.
