HS-21 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HS-21

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UNS HS-21

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This page is mainly introduced the HS-21 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HS-21,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Special Purpose Alloys ("Superalloys")

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.25
Si  
Mn  
Ni   2.50
Cr   27.00
Al  
Cu  
Ti  
Fe   1.75
Mo   5.50
Co   remaining
B   0.007

Mechanical Properties

Tensile strength 316~006 σb/MPa
Yield Strength 346 σ 0.2 ≥/MPa
Elongation 84 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 226~639 -
HRC 30 -

Physical Properties

Thermal expansion 66-99 e-6/K
Thermal conductivity 42-23 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8822-6237 째C
Density 1426-5295 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)
HS-21 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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