Tube mold powder is a silicon-iron based composite material. Its core components include silicon, calcium, barium, aluminum, manganese, zirconium, bismuth, and rare earth elements. Different grades adjust the alloy element ratios to meet specific industrial applications.
1. Basic Composition: Tube mold powder uses silicon (Si) as the main base material (typically accounting for 60-75%), combined with elements such as calcium (Ca), barium (Ba), aluminum (Al), manganese (Mn), and zirconium (Zr). Some grades contain bismuth (Bi) or rare earth elements (RE) to enhance material properties.
2. Grade Differences and Characteristics: Different grades have significant differences in the alloy element ratios and applicable scenarios:
• RY-ZG1: Emphasizes the ratio of manganese (2.8-4.5%) and zirconium (3.0-5.0%), suitable for high-strength and wear-resistant applications.
• RY-ZG2: Highest silicon content (68-75%), with precise control of calcium (1.2-2.0%) and zirconium (0.4-0.7%), suitable for precision casting.
•RY-ZG3/4: Barium content is significantly increased (RY-ZG4 reaches 5-8%), used in high-temperature antioxidant environments.
