K403 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of K403

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GBT K403

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This page is mainly introduced the K403 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of K403,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
K403
  • Steel Garde:K403
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:Age hardening type Nickel base alloy

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 157~788 σb/MPa
Yield Strength 394 σ 0.2 ≥/MPa
Elongation 28 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 621~878 -
HRC 30 -

Physical Properties

Thermal expansion 69-35 e-6/K
Thermal conductivity 57-24 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9726-2563 째C
Density 4978-1546 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)
K403 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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