To make wood look like steel, you can use a technique called "faux steel" or "faux metal" finish. Here's a general guide on how to achieve this effect:

1. Prepare the wood: Start by selecting a piece of wood and ensuring it is clean, smooth, and free from any dirt, dust, or previous finishes. Sand the wood surface to create a smooth and even base.
2. Prime the wood: Apply a coat of primer specifically designed for wood surfaces. The primer will help create a smooth and consistent base for the subsequent layers of paint.
3. Apply a base coat: Choose a dark gray or black paint as a base coat. Apply this paint evenly across the entire wood surface. Allow it to dry completely.
4. Add texture: To mimic the appearance of steel, you can create texture on the wood surface using various techniques. One option is to use a stippling brush or a sponge to lightly dab on a slightly lighter shade of gray or silver paint. This will create a mottled or speckled texture resembling the look of metal.
5. Apply metallic paint: Select a metallic paint in a color that resembles the shade of steel you desire, such as silver or gunmetal gray. Using a brush or spray paint, apply thin layers of metallic paint to the wood surface, allowing each layer to dry before applying the next. This will build up the metallic effect and create depth.
6. Add highlights and shading: Use a small brush and a slightly darker shade of metallic paint to create subtle shading and highlights on the wood surface. Apply the darker paint to recessed areas or along the edges to create depth and dimension, simulating the appearance of light reflecting off the metal.
7. Seal the finish: Once the paint has dried completely, apply a clear protective sealant or varnish to protect the faux steel finish and enhance its durability. Follow the manufacturer's instructions for proper application and drying times.

Remember, achieving a convincing faux steel finish on wood requires experimentation and practice to achieve the desired effect. It's a good idea to test the technique on a small, inconspicuous area of the wood or a scrap piece before applying it to your desired project.