31X19H9MBБT chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 31X19H9MBБT

GOST 31X19H9MBБT

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This page is mainly introduced the 31X19H9MBБT chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 31X19H9MBБT,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.28  0.35
Si   0.80
Mn 0.80  1.50
P   0.035
S   0.020
Cr 18.00  20.00
Ni 8.00  10.00
Mo 1.00  1.50
W 1.00  1.50
Ti 0.20  0.50
Nb 0.20  0.50

Mechanical Properties

Tensile strength 657~350 σb/MPa
Yield Strength 219 σ 0.2 ≥/MPa
Elongation 12 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 735~527 -
HRC 30 -

Physical Properties

Thermal expansion 88-83 e-6/K
Thermal conductivity 54-20 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8511-9645 째C
Density 1394-6415 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)
31X19H9MBБT 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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