T20819 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T20819

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UNS T20819

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This page is mainly introduced the T20819 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T20819,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Hot-Work Tool Steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
T20819 UNS USA

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.32  0.45
Si 0.20  0.50
Mn 0.20  0.50
P   0.030
S   0.030
Cr 4.00  4.75
Mo 0.30  0.55
V 1.75  2.20
W 3.75  4.50
Ni+Cu   0.75
Co 4.00  4.50

Mechanical Properties

Tensile strength 495~278 σb/MPa
Yield Strength 900 σ 0.2 ≥/MPa
Elongation 45 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 301~191 -
HRC 30 -

Physical Properties

Thermal expansion 41-13 e-6/K
Thermal conductivity 25-15 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8598-5149 째C
Density 4688-4550 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)
T20819 Tool Die 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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