Cast iron LR1

  • L1 cast iron
  • L2 cast iron
  • Cast iron L3
  • Cast iron L4
  • Cast iron L5
  • Cast iron L6
  • Cast iron LR1
  • LR2 cast iron
  • Cast iron LR3
  • Cast iron LR4
  • Cast iron LR5
  • Cast iron LR6
  • Cast iron LR7

    • Designation

    Name The value
    Designation GOST Cyrillic ЛР1
    Designation GOST Latin LP1
    Transliteration LR1
    By chemical elements BeB1

    Description

    Cast iron LR1 applies: for further melting in iron shops in the production of iron castings.

    Note

    Foundry pig iron, refined magnesium.

    Standards

    Name Code Standards
    Cast iron В11 GOST 4832-95

    Chemical composition

    Standard C S P Mn Cr Si Fe Al V Ti Pb Mg
    GOST 4832-95 3.4-4.5 ≤0.01 ≤0.12 ≤1 ≤0.04 3.2-3.6 Rest ≤0.005 ≤0.05 ≤0.06 ≤0.005 ≤0.019
    Fe is the basis.
    According to GOST 4832-95, cast iron is divided into 3 groups according to the manganese content: I group ≤0.30%, II group 0.30-0.50%, III group 0.50-1.00%; by the content of phosphorus is divided into 2 classes: class A ≤0,080%, class B ≤0,12%; on the content of sulfur is divided into 2 categories: 1 category ≤0.0050%, 2 category ≤0.010%. Cast iron may be produced with a mass fraction of silicon of more than 3.60%.