R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Materials And Construction Q. Duriron is (A) Acid resistant, brittle and very hard (B) High silicon iron (C) Prone to breakage due to thermal expansion because of its very high co-efficient of thermal expansion (D) All of the above 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (D) All of the above