The LP7 ring material is characterized by a predominatly lamellar and uniformly distributed graphite structure in a pearlitic matrix and has good conformability due to a relatively low modulus of elasticity.

• Non heat-treated grey cast iron
• Main applications: compression rings
• High break resistance
• DIN 34 109
• Minimum bending strength: 420 MPa
• Modulus of elasticity: 90 - 120 GPa
• Ring diameter range: ≤ 700 mm