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C 4

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Description

Medium calibrated construction carbon steel that can be used in the natural state or subjected to heat treatment.

Main applications

  • Machinery components
  • shafts and pins
  • nuts and bolts
  • parts for cars
  • knives
  • hammers
  • pruning shears

Delivery status

Calibrated

Hardness of the supply

  • Min: -
  • Med: -
  • Max: -
  • Composition
  • Services
  • Heat Treatments
  • Download

Profiles available

Thickness Tolerance
Round 8 - 120 mm EN 10278

Chemical composition (%) 1

Min Med Max
C
0,42 0,50
Si
0,40
Mn
0,50 0,80
P
0,030
S
0,035
Cr
0,40
Mo
0,10
Ni
0,40

Chemical composition (%) 1

Min Med Max
C
0,42 0,50
Si
0,40
Mn
0,50 0,80
P
0,030
S
0,035
Cr
0,40
Mo
0,10
Ni
0,40

Chemical composition (%) 1

Min Med Max
C
0,42 0,50
Si
0,40
Mn
0,50 0,80
P
0,030
S
0,02 0,040
Cr
0,40
Mo
0,10
Ni
0,40

Physical properties

Density : 7,84
10ˉ⁶m/mK
20 a 100 ⁰C 20 a 200 ⁰C 20 a 300 ⁰C 20 a 400 ⁰C 20 a 500 ⁰C 20 a 600 ⁰C 20 a 700 ⁰C
11,6 12,3 13,1 13,7 14,2 14,7 ---
Thermal Conductivity W/mk
20 ⁰C 200 ⁰C 300 ⁰C 350 ⁰C 400 ⁰C 600⁰C 700 ⁰C
15,1 --- --- --- --- --- ---
GPa
-100 ⁰C 0 ⁰C 20 ⁰C 100 ⁰C 200 ⁰C 300 ⁰C 400 ⁰C 500 ⁰C 600 ⁰C
--- --- 200 --- --- --- --- --- ---

Mechanical properties

Condition Ø Thickness Mechanical properties
Hardness Rm Rp0,2 ReH A Z RC
Hardened and tempered ≥ 5 - ≤ 10 - - - - - - - -
Drawn (+C) ≥ 5 - ≤ 10 - - - - - - - -
Ground (+SH) ≥ 5 - ≤ 10 - - - - - - - -
N/A ≥ 5 - ≤ 10 - - - - - - - -
Hardened and tempered ≤ 16 - - - - - - - -
Drawn (+C) ≤ 16 - - - - - - - -
Ground (+SH) ≤ 16 - - - - - - - -
N/A ≤ 16 - - - - - - - -
Hardened and tempered ≤ 40 - - - - - - - -
Drawn (+C) ≤ 40 - - - - - - - -
Ground (+SH) ≤ 40 - - - - - - - -
N/A ≤ 40 - - - - - - - -
Hardened and tempered ≤ 63 - - - - - - - -
Drawn (+C) ≤ 63 - - - - - - - -
Ground (+SH) ≤ 63 - - - - - - - -
N/A ≤ 63 - - - - - - - -
Hardened and tempered ≤ 100 - - - - - - - -
Drawn (+C) ≤ 100 - - - - - - - -
Ground (+SH) ≤ 100 - - - - - - - -
N/A ≤ 100 - - - - - - - -
Hardened and tempered - - - - - - - - -
Drawn (+C) - - - - - - - - -
Ground (+SH) - - - - - - - - -
N/A - - - - - - - - -
You can print this information
Updated on: 09.05.2022
  • Composition

    Profiles available

      • Round
      • 8 - 120 mm
      • EN 10278

    Chemical composition (%) 1

    Min Med Max
    C
    0,42 0,50
    Si
    0,40
    Mn
    0,50 0,80
    P
    0,030
    S
    0,035
    Cr
    0,40
    Mo
    0,10
    Ni
    0,40

    Chemical composition (%) 2

    Min Med Max
    C
    0,42 0,50
    Si
    0,40
    Mn
    0,50 0,80
    P
    0,030
    S
    0,035
    Cr
    0,40
    Mo
    0,10
    Ni
    0,40

    Chemical composition (%) 3

    Min Med Max
    C
    0,42 0,50
    Si
    0,40
    Mn
    0,50 0,80
    P
    0,030
    S
    0,02 0,040
    Cr
    0,40
    Mo
    0,10
    Ni
    0,40

    Physical properties

    Density : 7,84
    10ˉ⁶m/mK
    20 a 100 ⁰C 11,6
    20 a 200 ⁰C 12,3
    20 a 300 ⁰C 13,1
    20 a 400 ⁰C 13,7
    20 a 500 ⁰C 14,2
    20 a 600 ⁰C 14,7
    20 a 700 ⁰C ---
    Thermal Conductivity W/mk
    20 ⁰C 15,1
    200 ⁰C ---
    300 ⁰C ---
    350 ⁰C ---
    400 ⁰C ---
    600⁰C ---
    700 ⁰C ---
    GPa
    -100 ⁰C ---
    0 ⁰C ---
    20 ⁰C 200
    100 ⁰C ---
    200 ⁰C ---
    300 ⁰C ---
    400 ⁰C ---
    500 ⁰C ---
    600 ⁰C ---

    Mechanical properties

    Please refer to the table in the downloads section.

  • Services
  • Heat Treatments
  • Download

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Hardness HB

Hardness HRC

Resistance to abrasive wear

Resistance to adhesive wear

Resistance to tempering

Resistance to heat wear

Resistance to fatigue

Compressive strength

Toughness

Ductility

Corrosion resistance

Machinability

Suitability for welding

Suitability for polishing

Thermal fatigue

Suitability for nitriding

Suitability for texture

Number of cycles (Durability)

Creep resistance

Hardenability

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