Liu Yu said with a smile: "If the 100-refining steel knife really becomes a finger-twisting soft, wouldn't it have the toughness of 100 steel, and the softness of wrought iron, but it can be soft and hard, and the world is invincible?" ”

Kong Jing smiled slightly, and a trace of intriguing light flashed in his eyes: "This is exactly the lifelong pursuit of every swordsmith, perhaps, we can make such a divine weapon!" ”

Liu Yu nodded: "Then this armor piece doesn't need to be made of 100 steel." ”

Kong Jing said: "Yes, although it is an exaggeration to say that 100 steel, at least it has to be hammered repeatedly sixty or seventy times until the weight is not reduced, whether it is the consumption of materials or labor, it is extremely expensive. Fifty catties of iron ore, iron fine powder, and charcoal powder can probably produce one catty of 100 steel, and if even the armor of ordinary soldiers needs to be equipped with 100 steel, then the country can probably only raise a few thousand troops. ”

Liu Yu laughed: "So, you can only get a few pieces of this thing and equip it for the generals, and the other sergeants can only wear ordinary iron armor?" ”

Kong Jing shook his head: "In the general army, it is good to have leather armor to wear, according to the military system of the Great Jin Dynasty, only sixty percent of the combat sergeants wear leather armor, and the elephant archers can only wear cloth armor, or even no armor, only coarse cloth clothes." The Beifu Army is already sharp, so we will ensure that all front-line combat troops have armor to wear, and the Tiger Army will be equipped with stainless steel armor. ”

Liu Yu's brows furrowed: "Stainless steel armor? How is this steel defined? ”

Kong Jing walked to the side of a red, looking particularly eye-catching small basket, in which there were dense nail pieces, he took out one of them and handed it to Liu Yu: "Look, what is the difference between this piece of nail leaf and what you just saw?" ”

Liu Yu took this piece of armor, carefully put it in his hand while rubbing, while observing, only to feel that this piece of nail leaf tentacles are smooth, not like the piece just now, it is still a little rough to the touch, and this weight is slightly lighter than the piece of armor just now, about eight baht. (124 baht, each plant weighs 10 grains, about 0.65 grams)

Liu Yu weighed this piece of armor and said: "It seems that this piece of armor is lighter and smoother than just now, and it should be ............" He said, with two fingers and a force, he folded this piece of armor, the piece of iron armor just now, he used three points of force in his hand like this, and after folding, he could bend the piece of armor at once, but this piece of armor, he used the strength just now, but it was not moved at all, until he added fifty percent of his hand strength for the second time, and this piece of armor began to bend slightly.

Liu Yu smiled: "It's a lot harder than the previous one." It seems that not only can it be protected against arrows, but also ordinary sergeants' close-range slashing and stabbing can also be prevented. Is this steel? ”

Kong Jing nodded, took this piece of nail leaf, threw it back into the red basket, and said, "Yes, this is stainless steel, which is the final product obtained after being forged fifteen times repeatedly." Although it is not as good as 100 steel, it is also an extremely good steel, and the armor and combat equipment made are generally equipped with the elite of the Chinese army, or the children and nephews of the generals, especially for the cavalry used as the assault force of the whole army. ”

Liu Yu's mind suddenly appeared Murong Nan's appearance, and he asked: "The Xianbei people in the north have armor and cavalry, are these armored war horses wearing these stainless steel armor?" ”

Kong Jing's brows furrowed: "The Murong family has been in Liaodong for a long time, and the technology of iron smelting is very high, and the armor-making methods they use are not exactly the same as ours, and I don't know how to define the things they create, but in my opinion, their strength is even higher than that of a hundred steels!" ”

Liu Yu's eyes widened: "Is it so powerful?" ”

Kong Jing sighed: "The armor and war horses of the Murong family are invincible in the world, but they are not blown, of course, only their own clan headquarters will have secret methods to create fine armor, and the servant tribe has no right to equip fine armor, only ordinary iron armor, speaking of which, he Murong clan has 100,000 iron horses, but the really powerful ones are only 3,000 headquarters armor horses." ”

Liu Yu nodded: "But if these three thousand iron horsemen are invulnerable to swords and guns, and they wear armor that is more powerful than a hundred steels, it will be troublesome." I really have to think of a good way to deal with it. ”

Kong Jing smiled slightly: "If you know how the Murong clan's iron armor is built, you may have a chance to crack it." Still, for now, let's figure out how to make steel armor for our troops. Liu Yu, these steels are prepared by the slaves, you have a lot of strength, all you have to do is to forge the armor. ”

Liu Yu's brows furrowed: "Forging armor? What do you mean? ”

The hairball on one side said: "The nail piece is made of cold forging of steel blocks, which is different from the hot calcining that is to be burned red, deformed, and then reshaped into the shape we want. Therefore, it is entirely up to force to hit these already formed pieces of iron and turn them into armor. ”

As he spoke, he pointed to a large basket beside him, which was full of these small pieces of stainless steel, and said, "These are the original blocks of the nail pieces, and what you have to do is to make this kind of rough pieces into the kind of steel pieces you just saw." ”

Liu Yu nodded: "I understand, I see that the surface of these armor pieces is very smooth, this is not something that can be smashed with a hammer alone, it needs to be polished, right?" ”

Kong Jing Zhengse said: "Yes, these small pieces of fine steel, are in the state of molten steel, craftsmen rely on experience, little by little poured out, the shape is varied, the need for strong people, with a hammer smashed, smashed to this kind of nail piece, and then there is a special person to deal with the surface, polish smooth, drill hollow and so on." Team Liu, you just need to hammer it. ”

As he spoke, he picked up a sledgehammer weighing thirty or forty pounds on the side and handed it to Liu Yu: "Team Liu, it's up to you." ”

Liu Yu nodded, suddenly thought of something, and said: "When I look at the creation of these armor pieces, they all need a little arc, not a complete flat plate, so they need a special anvil to build?" ”

Kong Jing was slightly stunned, and then smiled: "No, that one is slowly hammered with a small hammer, of course, you don't need to do it, it's still for the craftsman who polishes and drills." All you have to do is smash these pieces of steel into this roughly rectangular shape. It's a lot of work. ”

Liu Yu shook his head suddenly: "Master Kong, perhaps, we have a better way to directly shape the nail piece!" ”

Kong Jingqi said: "A better way? Do you have any ancestral secrets? ”

Liu Yu smiled "hehe": "I know a fat man, he has read many books, when it comes to striking iron, he once said that instead of cold forging, it is better to let it form when it is in the state of molten iron, and you only need to have a good enough mold to do it!" ”