Gcr15 structural steel plate and 1.3505 alloy steel sheet refer to the same type of material, which is a kind of high - carbon chromium bearing steel. The following is a detailed introduction:

 

Chemical Composition: It mainly contains elements such as carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), and chromium (Cr). Among them, the carbon content is 0.95% - 1.05%, and the chromium content is 1.30% - 1.65%. Silicon, manganese and other elements can improve the strength and hardenability of steel, while phosphorus and sulfur are harmful elements, and their content is required to be low.

Mechanical Properties: The tensile strength is ≥861.3MPa, the yield strength is ≥518.42MPa, and the elongation after fracture is ≥27.95%. The hardness in the as - supplied state is 25.8HRC, and the hardness can reach 60 - 66HRC after heat treatment.

Material Characteristics: It has high hardness and wear resistance, and can maintain good dimensional stability and surface quality under high - friction and high - load working conditions. It also has good hardenability, high contact fatigue strength, good dimensional stability and good corrosion resistance.

 

 

 

 

 

 

Application Fields: It is mainly used in bearing manufacturing, and is a common material for manufacturing rolling elements and inner and outer rings of rolling bearings. It can also be used to manufacture precision mechanical parts, measuring tools, molds, cutting tools and other parts that require high wear resistance, high elastic limit and high contact fatigue strength.

Equivalent Standards in Other Countries: 1.3505 is the European standard, which is equivalent to 100Cr6 in German DIN/EN standard, SUJ2 in Japanese JIS standard, and E52100 or 52100 in American AISI/SAE standard.

 

 

 

 

 

 

 

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