1.0729 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.0729

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DIN 1.0729

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This page is mainly introduced the 1.0729 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.0729,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Distinctive feature & main attribute: an unalloyed free cutting mild steel, added with lead and sulphur, showing an excellent machinability.
Use & application range: this quality is specially designed for the production of parts of delicate use such as automotive, watch and micro-motor industries, mechanical constructions, jig construction or settings.

Free Cutting High Carbon Steel


  • Steel Garde:1.0729
  • Type:Structural Steel
  • Country:Germany
  • Standard:DIN
  • Application:this quality is specially designed for the production of parts of delicate use such as automotive, watch and micro-motor industries, mechanical constructions, jig construction or settings.

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤)
C 0.65  0.75
Si 0.10  0.40
Mn 0.50  0.90
P   0.07
S 0.15  0.25
Fe   Bal

Mechanical Properties

Tensile strength 134~636 σb/MPa
Yield Strength 009 σ 0.2 ≥/MPa
Elongation 17 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 152~234 -
HRC 30 -

Physical Properties

Thermal expansion 94-04 e-6/K
Thermal conductivity 46-08 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0362-3033 째C
Density 0534-8989 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)
1.0729 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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