Why do cast iron abstract sculptures require thicker walls compared to other metals?
Cast iron abstract sculptures often require thicker walls compared to those made from other metals due to the material's unique properties. Cast iron is more brittle and prone to cracking under stress, so thicker walls provide the necessary structural integrity to withstand handling and environmental factors. Additionally, the casting process for iron involves higher shrinkage rates, requiring extra material to compensate for potential defects. The weight and density of cast iron also demand thicker walls to maintain balance and stability in abstract designs. Finally, thicker walls enhance durability, ensuring the sculpture's longevity despite iron's susceptibility to rust and wear over time.
