T12004 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T12004

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UNS T12004

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This page is mainly introduced the T12004 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T12004,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
High-Speed Tool Steel

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.70  0.80
Si 0.20  0.40
Mn 0.10  0.40
P   0.030
S   0.030
Cr 3.75  4.50
Mo 0.40  1.00
V 0.80  1.20
W 17.50  19.00
Co 4.25  5.75

Mechanical Properties

Tensile strength 476~819 σb/MPa
Yield Strength 127 σ 0.2 ≥/MPa
Elongation 03 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 767~985 -
HRC 30 -

Physical Properties

Thermal expansion 50-49 e-6/K
Thermal conductivity 19-35 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9490-2300 째C
Density 6618-0938 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)
T12004 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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