C75 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of C75

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DIN C75

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This page is mainly introduced the C75 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of C75,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Cold Rolled Steel Strips for Springs; Technical Conditions of Delivery
  • Steel Garde:C75
  • Type:Structural Steel
  • Country:Germany
  • Standard:DIN
  • Standard Number:
    ITEM Standard Number Descriptions
    1 DIN 17222 (1979) Cold Rolled Steel Strips for Springs; Technical Conditions of Delivery
  • Application:Cold Rolled Steel Strips for Springs; Technical Conditions of Delivery

Cross Reference Table(Equivalent Materials):

Material Standard Country
C75S EN Whole

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤)
C 0.70  0.80
Si 0.15  0.35
Mn 0.60  0.80
P   0.045
S   0.045
Cr  
Ni  
Mo  
Cu  

Mechanical Properties

Tensile strength 263~444 σb/MPa
Yield Strength 912 σ 0.2 ≥/MPa
Elongation 17 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 919~317 -
HRC 30 -

Physical Properties

Thermal expansion 80-23 e-6/K
Thermal conductivity 58-50 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2131-7098 째C
Density 4575-8113 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
C75 Structural Steel Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download

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