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C 424

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Description

Spring steel in the annealed state. Used in mats, cores and parts that require high resistance to wear and hardness. Its mechanical properties can be improved with a hardening treatment. Nitriding will favour wear resistance.

Main applications

  • Dies
  • Taps
  • Spiral Springs Torsion Bars
  • Screwdrivers

Delivery status

Annealed

Hardness of the supply

  • Min: -
  • Med: -
  • Max: 270 HB
  • Composition
  • Services
  • Heat Treatments
  • Download

Profiles available

Thickness Tolerance
Round On Request EN 10060

Chemical composition (%) 1

Min Med Max
C
0,47 0,55
Si
0,40
Mn
0,70 1,10
P
0,025
S
0,025
Cr
0,90 1,20
V
0,10 0,25
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
--- --- --- --- --- --- ---
Thermal Conductivity W/mk
20 ⁰C 200 ⁰C 300 ⁰C 350 ⁰C 400 ⁰C 600⁰C 700 ⁰C
--- --- --- --- --- --- ---
GPa
-100 ⁰C 0 ⁰C 20 ⁰C 100 ⁰C 200 ⁰C 300 ⁰C 400 ⁰C 500 ⁰C 600 ⁰C
--- --- --- --- --- --- --- --- ---

Mechanical properties

Condition Ø Thickness Mechanical properties
Hardness Rm Rp0,2 ReH RC A Z
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 ≤ 80 - - - - - - - -
Drawn (+C) ≤ 80 - - - - - - - -
Ground (+SH) ≤ 80 - - - - - - - -
N/A ≤ 80 - - - - - - - -
Hardened and tempered - - - - - - - - -
Drawn (+C) - - - - - - - - -
Ground (+SH) - - - - - - - - -
N/A - - - - - - - - -
Hardened and tempered - - - - - - - - -
Drawn (+C) - - - - - - - - -
Ground (+SH) - - - - - - - - -
N/A - - - - - - - - -
Hardened and tempered - - - - - - - - -
Drawn (+C) - - - - - - - - -
Ground (+SH) - - - - - - - - -
N/A - - - - - - - - -
You can print this information
Updated on: 09.05.2022
  • Composition

    Profiles available

      • Round
      • On Request
      • EN 10060

    Chemical composition (%) 1

    Min Med Max
    C
    0,47 0,55
    Si
    0,40
    Mn
    0,70 1,10
    P
    0,025
    S
    0,025
    Cr
    0,90 1,20
    V
    0,10 0,25

    Physical properties

    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 ---
    Thermal Conductivity W/mk
    20 ⁰C ---
    200 ⁰C ---
    300 ⁰C ---
    350 ⁰C ---
    400 ⁰C ---
    600⁰C ---
    700 ⁰C ---
    GPa
    -100 ⁰C ---
    0 ⁰C ---
    20 ⁰C ---
    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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