Perfecting Precision with 9SMn28 Steel: Machining Characteristics and Tolerances

The chemical composition of 9SMn28 steel includes carbon (C), manganese (Mn), sulfur (S), and phosphorus (P). It typically contains 0.16-0.24% carbon, 1.00-1.30% manganese, a maximum of 0.35% sulfur, and a maximum of 0.40% phosphorus. These elements contribute to the overall properties and characteristics of the steel.

In terms of mechanical properties, 9SMn28 steel exhibits a tensile strength ranging from 500 to 700 MPa, a yield strength of 350 MPa, and a minimum elongation of 10%. It has a hardness of approximately 150-200 HB.

The technical properties of 9SMn28 steel include its machinability and tolerances. It is known for its excellent machinability, making it suitable for high-speed machining operations. The steel has good chip breaking properties and produces short and easily manageable chips. It also has good surface finish capabilities.

When it comes to tolerances, 9SMn28 steel can achieve tight dimensional tolerances and fine surface finishes. It offers precision and accuracy in machining operations, making it suitable for applications that require high precision and tight tolerances.

Overall, 9SMn28 steel is a versatile material that combines good machinability with desirable mechanical properties and technical characteristics. It is commonly used in precision machining applications where precision, accuracy, and tight tolerances are required.