Material: Continuous Cast Grey Iron Hollow Bar GG25/GG30
Size:OD60-320mm
Cross-section: Round, Square, Hexagon...
Advantages:
Zero casting defect, free machining,superior wear resistance, widely used in cylinder sleeve, bearing, bushing,spacer etc.
Material Grade | Chemical Composition (%) | Tensile Strength(Mpa) | Hardness(HB) | ||||
C | Si | Mn | P | S | |||
GG25 | 2.6-3.5 | 2.2-3.0 | 0.5-0.8 | ≤0.07 | ≤0.03 | 230-300 | 170-230 |
GG30 | 2.6-3.5 | 2.2-3.2 | 0.6-1.2 | ≤0.07 | ≤0.03 | 280-350 | 200-240 |