T20824 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T20824

Location » Home » Grades > Tool Die Steels > T20824

UNS T20824

Profile

This page is mainly introduced the T20824 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T20824,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
T20824 UNS USA

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.42  0.53
Si 0.15  0.40
Mn 0.15  0.40
P   0.030
S   0.030
Cr 2.50  3.50
Mo  
V 0.40  0.60
W 14.00  16.00
Ni+Cu   0.75

Mechanical Properties

Tensile strength 969~881 σb/MPa
Yield Strength 634 σ 0.2 ≥/MPa
Elongation 35 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 304~074 -
HRC 30 -

Physical Properties

Thermal expansion 94-21 e-6/K
Thermal conductivity 21-75 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8732-1798 째C
Density 9594-2790 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)
T20824 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

Hot keywords:T20824
Previous: H23
Next: H24