Quality carbon structural steel plate 1.1148

Implementation of the standards: EN 10083/2-1991

Features and application:

C30 (1.0528) strength and hardenability of steel is higher than 30, moderate weldability, cold deformation, the plastic medium, good machinability, usually used in normalizing the state, for the manufacture of bolts, nuts, leverage, and high stress work of small parts.

Chemical composition:

    Carbon C: 0.27 ~ 0.34

    Si Si: ≤ 0.40

    Manganese Mn: 0.50 ~ 0.80

  Sulfur S: ≤ 0.045

    Phosphorus P: ≤ 0.045

    Chromium Cr: ≤ 0.40

    Ni-Ni: ≤ 0.40

    Mo Mo: ≤ 0.10

Mechanical properties:

    Tensile strength σb (MPa): ≥ 540 (55)

    Yield strength σs (MPa): ≥ 315 (32)

    Elongation δ5 (%): ≥ 20

    Reduction of area ψ (%): ≥ 45

    Impact energy Akv (J): ≥ 63

    Impact toughness αkv (J/cm2): ≥ 78 (8)

Hardness: no heat treatment, ≤ 217HB; annealed steel, ≤ 187HB