T51621 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T51621

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UNS T51621

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This page is mainly introduced the T51621 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T51621,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Mold Steel

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.18  0.22
Si 0.20  0.40
Mn 0.20  0.40
P   0.030
S   0.030
Cr 0.15  0.30
Mo  
V 0.15  0.25
W  
Ni+Cu   0.75
Ni 3.90  4.25
Al 1.05  1.25

Mechanical Properties

Tensile strength 758~933 σb/MPa
Yield Strength 051 σ 0.2 ≥/MPa
Elongation 72 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 957~384 -
HRC 30 -

Physical Properties

Thermal expansion 72-02 e-6/K
Thermal conductivity 22-47 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4721-7043 째C
Density 7823-6550 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)
T51621 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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