03X21H21M4ΓБ chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 03X21H21M4ΓБ

GOST 03X21H21M4ΓБ

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This page is mainly introduced the 03X21H21M4ΓБ chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 03X21H21M4ΓБ,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   0.03
Si   0.60
Mn 1.80  2.50
P   0.030
S   0.020
Cr 20.00  22.00
Ni 20.00  22.00
Mo 3.40  3.70
W   0.20
Ti   0.20
Nb 15×C  0.80

Mechanical Properties

Tensile strength 657~681 σb/MPa
Yield Strength 354 σ 0.2 ≥/MPa
Elongation 10 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 102~531 -
HRC 30 -

Physical Properties

Thermal expansion 93-53 e-6/K
Thermal conductivity 71-61 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4223-0616 째C
Density 4274-8643 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)
03X21H21M4ΓБ 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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