Annealing is a process that softens and strengthens metals, such as copper, by applying heat and then allowing it to cool. This process aligns the crystalline structure of the metal, resulting in improved malleability and ductility. Here, we outline 13 steps on how to anneal copper.

1. Gather necessary tools and materials: To anneal copper, you will need a copper piece, a propane torch or similar heat source, a fireproof surface or container, heavy-duty gloves, safety goggles, tongs or pliers, a quenching container filled with water, and a clean cloth.

2. Clean the copper: Remove any dirt, grease, or debris from the copper piece using soap and water or an appropriate cleaning solution. Rinse thoroughly and dry with a clean cloth.

3. Safety first: Before beginning, put on your heavy-duty gloves and safety goggles to protect yourself from the heat.

4. Set up workspace: Place your fireproof surface or container in a well-ventilated area away from any flammable materials. This will be where you heat the copper.

5. Position the copper: Place the cleaned copper piece on the fireproof surface or inside the fireproof container.

6. Light your torch: Following manufacturer instructions, light your propane torch or other heat source.

7. Begin heating: Hold the torch at least 2-3 inches away from the copper surface, moving it along the entire piece evenly. Make sure that no part of the copper remains unheated.

8. Observe color changes: As you heat the copper piece, its color will change from its typical reddish-brown hue to shades of red, orange, pale pink, and ultimately dark cherry red.

9. Heat until glowing: Continue heating until the entire piece of copper has reached a uniform dark cherry red color and glows slightly in dim light.

10. Turn off the torch: Once the copper piece reaches this state, turn off the torch and remove the heat source.

11. Cool naturally: Allow the copper to cool for a few seconds in the open air.

12. Quench: Using tongs or pliers, quickly dunk the copper piece into the quenching container filled with water. This abrupt cooling process will lock in the desirable annealing effects.

13. Dry your annealed copper: Retrieve the piece from the water using tongs or pliers, and gently pat it dry with a clean cloth.

Following these 13 steps, you’ll have successfully annealed your copper piece, making it more ductile and malleable while maintaining its strength. The softened metal can now be easily shaped or formed as needed for various projects and applications. Make sure to always follow safety guidelines when working with heat and metals.