Creating metal sculptures that can endure extreme temperatures requires careful material selection and specialized techniques. Start by choosing metals with high melting points, such as stainless steel, titanium, or Inconel alloys, which offer superior heat resistance. For added durability, consider ceramic coatings or refractory materials to shield the sculpture from thermal stress.

Welding and fabrication methods also play a crucial role. Use TIG or MIG welding for precision and strength, ensuring joints can expand and contract under temperature fluctuations without cracking. Pre-heating and post-weld heat treatments further enhance structural integrity.

Design considerations include avoiding sharp edges and thin sections that may warp under heat. Instead, opt for robust, evenly distributed forms that dissipate thermal energy efficiently. Finally, regular maintenance, such as applying heat-resistant sealants, can prolong the sculpture's lifespan in harsh environments.

By combining the right materials, techniques, and design principles, artists can craft stunning metal sculptures capable of withstanding extreme temperatures while maintaining their aesthetic appeal.