Kajiya de Hajimeru Isekai Slow Life - Vol. 1 Ch. 2

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@GH12QS
the medium for quenching and cooling heavily depends on your wishes for the finished product
its all about the heat absoprtion rate
basicly how fast the medium cools the metal (water has usualy a higher one than oil)
usualy and especialy for iron a faster cooling process means the metal becomes stiffer, harder and less flexible
a good blacksmith knows when to use which medium and from which temperature to produce a product that has the desired stiffness and elasticity

also different metal alloys require different colling agents and different temperatures to work with
and today most metals are alu or carbon alloys, pure iron isnt realy that common anymore its actualy pretty rare
and for optimal use water as a quenching medium needs special additives which is why water doesnt necessaryly mean pure h2o thus its more expensive much more troublesome than using the right manufactured oil
 
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oil doesnt degrade as fast and requires less prep
oil=> cheaper, easier and more reliable
though thats mostly because of science making is easy to produce it just the way you need it
in the past the formula for their specific quenching water was something blacksmiths passed down for generations
(roman steel and the red headed boy urine would be a example)
 
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the 3rd (technically 4th) knife what Samia used was the same like the universe collpsed xD and the face was like when she messed up something important xD
 
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This, ladies and gentlemen, is why all Isekai protagonists should be adults. So that they are capable of being rational and not having panic attacks at the slightest sight of cleavage.
 
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We don't need magic to create very sharp knife. Very sharp knife has sharpened edge down to molecular level, but very thin steel is very brittle. We just don't have the material for it. Why the table survived if the knife very sharp?
 
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Very realistic depiction of what a cat girl would like in a fantasy setting. 🙋

Looks like I'm hooked on the story already. The WN is over 400 chapters long. I won't have to wait for the manga.
 
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did he just created steel out of nowhere?

he didn't create by melting iron and mixing right amount of carbon. also not sure if its a translation mistake of author suddenly change from steel to iron. iron is not really that great since its softer without carbon mix in it, but mixing too much carbon can ruin the steel. but it can be fix by hammering the excess carbon. like how katana are made from high carbon steel because japanese don't have the tech to melt iron.
 

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