K21650 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of K21650

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AISI K21650

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This page is mainly introduced the K21650 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of K21650,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Alloy steel casting

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Si   1.00
Mn 7.50  9.00
P  
S  
Ni 5.00  7.00
Cr 17.50  22.00
Al  
Cu  
Ti  
Fe  
N 0.25  0.50
Mo 2.00  3.00

Mechanical Properties

Tensile strength 752~161 σb/MPa
Yield Strength 744 σ 0.2 ≥/MPa
Elongation 33 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 716~597 -
HRC 30 -

Physical Properties

Thermal expansion 35-51 e-6/K
Thermal conductivity 87-24 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3794-3938 째C
Density 3910-3454 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)
K21650 Stainless Steels 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