What is the recommended cutting speed for 5-inch thick steel?

What is the recommended cutting speed for 5-inch thick steel?

• A. 1 to 3 inches per minute
• B. 3 to 5 inches per minute
• C. 5 to 10 inches per minute
• D. 10 to 15 inches per minute

Answer: (C)

The recommended cutting speed for 5-inch thick steel falls within the range of 5 to 10 inches per minute. This speed is appropriate for maintaining effective heat transfer and ensuring that the metal is cut efficiently without excessive slag formation or burning of the material. At this rate, the cutting process will provide a balance between effective penetration of the heat into the steel and the removal of molten metal, which is essential for achieving a clean cut. Cutting too slowly can lead to overheating and excessive slag, while cutting too quickly can result in insufficient penetration and an incomplete cut. The selection of 5 to 10 inches per minute aligns with practices that have been established for oxyfuel cutting of thicker materials, ensuring quality results while optimizing operational efficiency.

The recommended cutting speed for 5-inch thick steel falls within the range of 5 to 10 inches per minute. This speed is appropriate for maintaining effective heat transfer and ensuring that the metal is cut efficiently without excessive slag formation or burning of the material. At this rate, the cutting process will provide a balance between effective penetration of the heat into the steel and the removal of molten metal, which is essential for achieving a clean cut.

Cutting too slowly can lead to overheating and excessive slag, while cutting too quickly can result in insufficient penetration and an incomplete cut. The selection of 5 to 10 inches per minute aligns with practices that have been established for oxyfuel cutting of thicker materials, ensuring quality results while optimizing operational efficiency.