SM55 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SM55

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SM55

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This page is mainly introduced the SM55 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SM55,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SM55
  • Steel Garde:SM55
  • Type:Special Alloy
  • Country:China
  • Application:Plastic mould with flat steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 191~463 σb/MPa
Yield Strength 953 σ 0.2 ≥/MPa
Elongation 77 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 181~472 -
HRC 30 -

Physical Properties

Thermal expansion 05-59 e-6/K
Thermal conductivity 99-92 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0391-9586 째C
Density 9166-4296 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)
SM55 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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