Material: Continuous Cast Ductile Iron Hollow Bar GGG40/GGG50/GGG70

Size:OD60-320mm

Cross-section: Round, Square, Hexagon...

Advantages:

Zero casting defect, high density,superior wear resistance, widely used in cylinder sleeve, piston ring, bushing,hydraulic cylinder gland etc.

Material Grade Chemical Composition (%) Tensile Strength(Mpa) Hardness(HB) Elongation(%)
C Si Mn P S
GGG40 3.0-3.9 2.2-2.8 0.2-0.4 ≤0.07 ≤0.03 450-500 160-210 10-15
GGG50 3.0-3.9 2.2-2.6 0.4-0.8 ≤0.07 ≤0.03 500-550 180-230 5-7
GGG70 3.0-3.6 2.2-2.6 0.3-0.6 ≤0.07 ≤0.03 600-700 225-310 2-3