For each specific material grade, such as 25CrMo4 or 30CrNiMo8, they have clear definitions and requirements under the EN 10083-3 standard. Steel under the EN 10083-3 standard covers multiple material grades, and the chemical composition of each material grade varies depending on its properties and applications. The following are examples of chemical compositions of some material grades:
C45: This is a type of carbon steel whose main chemical components include carbon, with a content of approximately 0.42%~0.50%, and sulfur, with a content of up to 0.045%.
42CrMo4 (1.7225): The chemical composition of this alloy steel includes carbon (C) about 0.38%~0.45%, chromium (Cr) about 0.90%~1.20%, molybdenum (Mo) about 0.15%~0.30%, sulfur The content of (S) and phosphorus (P) is maximum 0.035%.
34CrNiMo6 (1.6582): This is an alloy structural steel whose chemical composition includes carbon (C) about 0.30%~0.38%, chromium (Cr) about 1.30%~1.70%, and nickel (Ni) about 1.30%~ 1.70%, molybdenum (Mo) is about 0.15%~0.30%, and the contents of sulfur (S) and phosphorus (P) are both up to 0.035%.
30CrNiMo8 (1.6580): Its chemical composition is usually as follows: carbon (C) is 0.26%~0.34%, silicon (Si) is up to 0.40%, manganese (Mn) is 0.50%~0.80%, and phosphorus (P) is up to 0.025% , sulfur (S) is at most 0.035%, chromium (Cr) is 1.80%~2.20%, nickel (Ni) is 1.80%~2.20%, molybdenum (Mo) is 0.30%~0.50%, and boron (B) is 0.001% ~0.005%.
The main characteristics of EN10083-3 steel are reflected in its excellent mechanical properties. Specifically, this steel has high strength, high toughness and good hardenability. In addition, EN10083-3 steel also has good hot processing properties and can perform well in various heat treatment processes. This enables it to meet a variety of complex processing requirements during the manufacturing process, such as quenching, tempering, welding, etc.
EN10083-3 has a very wide range of applications. It is mainly used to manufacture engineering and mechanical components, such as pidges, buildings, ships, vehicles, heavy equipment, etc. This kind of steel meets the needs of various complex and harsh working environments with its excellent mechanical properties, such as high strength, high toughness and good hardenability.
In addition, due to its good thermal processing properties and welding properties, EN10083-3 steel is also suitable for manufacturing components that require complex processing and assembly, such as precision mechanical parts, welding parts with complex structures, etc.
It should be noted that the specific application range may vary depending on factors such as the specific grade and specification of the steel and the working environment. Therefore, in practical applications, it is necessary to select the appropriate EN10083-3 steel according to specific needs and conditions, and follow the corresponding processing and usage specifications to ensure that its performance is fully utilized.