How to Select the Appropriate Cutting Method for Mild Steel Angle Cutting

How to Select the Appropriate Cutting Method for Mild Steel Angle Cutting?
Thin-Walled Angle Steel (≤6mm)
Recommended Tools:
Angle Grinder + Ultra-Thin Cutting Disc: Lightweight and flexible, suitable for small-batch or on-site cutting.
Manual Angle Steel Shears: Such as shears made of 65 manganese steel, which manually cut through lever principles, suitable for environments without power supply, but with lower efficiency.
Note: Avoid using ordinary grinding wheels to cut thin steel, as they can easily cause deformation or burrs.
Medium-Thick Angle Steel (6-20mm)
Recommended Tools:
Metal Cutting Circular Saw: Equipped with an 8-1/4-inch (210mm) carbon steel cutting disc, capable of cutting through 12mm angle steel in one pass.
Plasma Cutter: Suitable for outdoor or thick steel cutting, with an efficiency 2-3 times higher than flame cutting, but windproof measures are required.
Cost Comparison: The cost per cut for a plasma cutter is approximately ￥5-10, while for flame cutting, it is around ￥2-5. However, plasma cutting is faster.
Thick Angle Steel (>20mm)
Recommended Tools:
Flame Cutting Machine: Melts steel through high-temperature combustion of oxygen-acetylene, suitable for cutting ultra-thick angle steel, but subsequent grinding is required to remove the heat-affected zone.
Large Hydraulic Shearing Machine: Suitable for factory mass production, with a single shearing force reaching hundreds of tons, but with high equipment costs.