X21Cr13 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X21Cr13

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ISO X21Cr13

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This page is mainly introduced the X21Cr13 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X21Cr13,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Wrought steels for use at elevated temperatures in engines
  • Steel Garde:X21Cr13
  • Type:Stainless Steels
  • Country:International
  • Standard:ISO
  • Standard Number:
    ITEM Standard Number Descriptions
    1 ISO/TR 4956 Wrought steels for use at elevated temperatures in engines
  • Metallographic Structure:Bainite
  • Application:Wrought steels for use at elevated temperatures in engines

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.09  0.15
Si   1.00
Mn   1.00
P   0.040
S   0.030
Cr 11.50  14.00
Mo  
Ni   1.00

Mechanical Properties

Tensile strength 788~964 σb/MPa
Yield Strength 697 σ 0.2 ≥/MPa
Elongation 43 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 309~011 -
HRC 30 -

Physical Properties

Thermal expansion 59-87 e-6/K
Thermal conductivity 72-31 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9816-4541 째C
Density 7417-6809 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)
X21Cr13 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

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