SUH31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUH31

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CNS SUH31

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This page is mainly introduced the SUH31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUH31,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
CNS standard heat resistant steel bar steel grade and chemical composition
  • Steel Garde:SUH31
  • Type:Stainless Steels
  • Country:China
  • Standard:CNS
  • Metallographic Structure:Austenite
  • Application:CNS standard heat resistant steel bar steel grade and chemical composition

Cross Reference Table(Equivalent Materials):

Material Standard Country
SUH310 CNS China
SUH310 CNS China

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.35  0.45
Si 1.50  2.50
Mn   0.60
P   0.040
S   0.030
Cr 14.00  16.00
Ni 13.00  15.00
Mo  
N  
W 2.00  3.00

Mechanical Properties

Tensile strength 528~119 σb/MPa
Yield Strength 971 σ 0.2 ≥/MPa
Elongation 17 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 926~636 -
HRC 30 -

Physical Properties

Thermal expansion 57-81 e-6/K
Thermal conductivity 03-72 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1909-5575 째C
Density 0439-3847 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)
SUH31 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