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1.2436 high wear-resistant chromium steel, high carbon, high chromium ledeburite steel, cold work die steel.. Used to make cold work die with large cross-section, complex shape, high impact force and high wear resistance. Cold work molds include cold punching dies, wire drawing dies, drawing dies, stamping dies, thread rolling dies, thread rolling plates, cold heading dies and cold extrusion dies. The cold work die is made of steel, which should have high hardness, strength, wear resistance, sufficient toughness, and high hardenability, hardenability and other process properties according to the working conditions of its manufacture. Alloy tool steels used for this kind of purposes generally belong to high-carbon alloy steels, with a carbon mass fraction above 0.80%. Chromium is an important alloying element of this type of steel, and its mass fraction is usually not more than 5%. However, for some steels with high wear resistance and small deformation after quenching, the highest chromium mass fraction can reach 13%, and in order to form a large amount of carbides, the carbon mass fraction in the steel is also very high, up to 2.0%~ 2.3%. Cold work die steel has a high carbon content, and most of its structure is hypereutectoid steel or ledeburite steel. Commonly used steels include high carbon low alloy steel, high carbon high chromium steel, chromium molybdenum steel, medium carbon chromium tungsten steel, etc.

1.2601 steel is in the family of chilling tool steels, which has high chromium, has high hardness and abrasion resistance against scratches and adhesions, and also has high dimensional stability during heat treatment. The Bohler standard for this steel is K105. The chemical composition of this steel is similar to 1.2080, with the difference that 1.2601 steel has more desirable abrasion resistance due to its tungsten and vanadium.

Forgings need to be consistent in each piece, without any porosity, inclusions or other defects. The components produced by this method have a high ratio of strength to weight. These elements are commonly used in aircraft structures.

The advantages of forgings include stretchable length and shrinkable cross-section; shrinkable length and stretchable cross-section; changeable length and changeable cross-section. The types of forgings are: free forging/hand forging, hot die forging/precision forging, upsetting, roll forging and die forging.

1. The hardness of the working part of the rolling wheel is 59.5-62.5HRC

2. Rolling wheel for ring rolling,is pair for one set.