Material Specifications The standard materials used by IHL for the manufacture of our hydraulic manifolds are: • Ductile Iron Bar, grade 65-45-12 – Tensile strength (minimum) : 448MPa – Yield strength (minimum) : 310MPa – Elongation (minimum) : 12% – Hardness (minimum) : 130 BHN – Hardness (maximum) : 207 BHN – Manifolds manufactured from ductile … Continue reading Material Specifications