Yes, angle steel can be used in marine engineering, but it requires proper surface treatment due to the harsh marine environment with high salt content and humidity. Hot - dip galvanized or stainless - steel angle steel is often preferred. In shipbuilding, it can be used for the internal structure of ships, such as bulkhead frames and support structures for equipment. For offshore platforms, angle steel is used in the construction of walkways, handrails, and some secondary support components. However, regular inspection and maintenance are necessary to ensure its integrity in the corrosive marine environment.