Ductile Iron

Guides for EN-GJS/ASTM A536: strength–ductility windows (400–700 MPa; 5–14% El), pressure-tight design and fatigue. Minimum walls by process, shrinkage allowance (≈1.0–1.2%), and PPAP checks (nodule count, tensile, hardness).
• Use for pump/valve bodies, brackets, hubs.
• Add leak test & NDT where critical.