CF9SMnPb36 is a low carbon free cutting steel grade that offers excellent machinability and good mechanical properties. It is commonly used in the manufacturing of machine components and parts that require high precision and efficient cutting.

The chemical composition of CF9SMnPb36 steel grade is as follows:

– Carbon (C): 0.08% – 0.15%
– Silicon (Si): max 0.05%
– Manganese (Mn): 0.80% – 1.20%
– Phosphorus (P): max 0.045%
– Sulfur (S): max 0.35%
– Chromium (Cr): 0.10% – 0.40%
– Nickel (Ni): 0.30% – 0.60%
– Lead (Pb): 0.15% – 0.35%

The mechanical properties of CF9SMnPb36 steel grade include:

– Hardness: HB max 192
– Tensile strength: 550 MPa – 850 MPa
– Yield strength: 400 MPa – 800 MPa
– Elongation: 10% – 20%
– Reduction of area: 50% – 60%
– Impact resistance: 16 J

The combination of low carbon content and lead addition in CF9SMnPb36 steel grade enhances its machinability by providing good chip control, reduced tool wear, and improved surface finish. The lead also acts as a solid lubricant, reducing friction and heat during machining operations.

This steel grade is suitable for various applications such as shafts, bolts, nuts, screws, gears, and other precision components that require excellent machinability. CF9SMnPb36 is commonly used in automotive, aerospace, and general engineering industries.

It is important to note that due to the lead content, special safety precautions need to be taken during the machining of CF9SMnPb36 steel grade to prevent lead exposure.
CF9SMnPb36 Steel grade