Why is cold-rolled round bar preferred for precision parts?
High dimensional accuracy and a smooth surface reduce machining allowances, improving production efficiency and part precision.
What material is suitable for cold-rolled round bar used in medical devices?
304 and 316 austenitic stainless steels are commonly used due to their corrosion resistance and good biocompatibility.
Which material is suitable for high-strength applications?
Alloy structural steels such as 40Cr and 42CrMo, or work-hardened high-carbon steel, are available.
How should cold-rolled round bar be selected based on the application?
For structural parts, consider strength (alloy steel is recommended). For corrosion resistance, choose stainless steel. For precision parts, prioritize high dimensional accuracy.
How should cold-rolled round bar be stored?
To prevent moisture and rust: Avoid outdoor storage. Store on elevated surfaces for ventilation. Apply anti-rust oil to the surface and control humidity.
What is the machining performance of cold-rolled round bar?
Low-carbon steel grades (such as 1018) offer good machinability and extend tool life. High-hardness grades require annealing before machining.