27SiMn chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 27SiMn

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GB 27SiMn

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This page is mainly introduced the 27SiMn chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 27SiMn,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
27SiMn

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.24  0.32
Si 1.10  1.40
Mn 1.10  1.40
P   0.035
S   0.035
Cu   0.30
Cr   0.30
Ni   0.30
Mo   0.15

Mechanical Properties

Tensile strength 430~116 σb/MPa
Yield Strength 299 σ 0.2 ≥/MPa
Elongation 86 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 191~733 -
HRC 30 -

Physical Properties

Thermal expansion 81-10 e-6/K
Thermal conductivity 52-26 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2892-3032 째C
Density 0787-5617 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)
27SiMn 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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