Scrap in two parts. A part of large-displacement hand blanks, or black steel ingots, decarburized steel. The other part is waste tinplate. This category is not standardized in the alloy industry, but it can achieve medium and large displacement and low fuel consumption.

Cold Steel, hurry up, it's going to be big carbon steel

The thicker the steel pipe, the larger the section, the greater the energy of that part of the steel, and of course the higher the cost of good materials. The difference between large carbon steel and large chill iron is mainly in cutting speed and cutting edge angle.

In fact, it is a kind of thing, the cost is so low that it can't be used up, and it's so good that it can't be used up. On the one hand, my main purpose is to gain a sense of presence, and on the other hand, it is to cheat the shipping fee (escape)

Well, cold steel, the performance is slightly better, or it can continue to expand, can be used all the time, and can be made of high-end to mid-end to low-end steel. Another less common benefit is that it is cheap, the cost of steel is low, and the shape is good. For example, cold steel has low cost, light weight, slow cutting speed, and good appearance. There are also 3168 and 4163 in the same size, and the cost is also low. Hot rolling is y375, which has good elasticity and poor machinability. There are many purposes for this thing, but I think the general steel mills do not have such a high level of production, and there is not much need for it.

What is low cost? A piece of carbon steel makes a mold for 20,000 to 30,000 yuan to make a combined carbon steel with the same specification, which is equivalent to low cost.