STKM12C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STKM12C

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CNS STKM12C

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This page is mainly introduced the STKM12C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STKM12C,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
STKM12C
  • Steel Garde:STKM12C
  • Type:Special Alloy
  • Country:China
  • Standard:CNS
  • Application:China Taiwan Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 543~914 σb/MPa
Yield Strength 649 σ 0.2 ≥/MPa
Elongation 28 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 499~191 -
HRC 30 -

Physical Properties

Thermal expansion 57-19 e-6/K
Thermal conductivity 01-15 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1037-8749 째C
Density 4588-9356 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)
STKM12C Special Alloy 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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