Excavator Teeth Types 205-70-74190 For PC200 4HOLES Replacement Parts

Analysis of Physical Properties and Wear Characteristics of Granite and Shale

Granite Characteristics

‌Physical Parameters‌: Density 2.6–2.8 g/cm³, Mohs hardness 6–7, compressive strength 160–300 MPa

Wear Characteristics: High abrasion resistance; causes severe wear on ripper teeth, prone to causing tip chipping

Special Phenomena: Under humid climates (e.g., South China), chemical weathering occurs, softening the surface while maintaining high internal hardness

Shale Characteristics

‌Physical Parameters‌: Density 2.0–2.5 g/cm³, Mohs hardness 3–4, compressive strength 50–150 MPa

‌Abrasion Characteristics‌: Moderate wear resistance, but prone to flaking, potentially causing uneven tooth surface wear

‌Special Phenomena‌: Hardness significantly decreases after water absorption, but may contain hard interlayers when dry