STR446 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STR446

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KS STR446

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This page is mainly introduced the STR446 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STR446,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
KS standard ferrite heat resistant steel
  • Steel Garde:STR446
  • Type:Special Alloy
  • Country:Korea
  • Standard:KS
  • Application:KS standard ferrite heat resistant steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 653~939 σb/MPa
Yield Strength 886 σ 0.2 ≥/MPa
Elongation 76 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 227~053 -
HRC 30 -

Physical Properties

Thermal expansion 07-97 e-6/K
Thermal conductivity 94-05 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7075-9112 째C
Density 6478-5033 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)
STR446 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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