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 554~259 σb/MPa
Yield Strength 248 σ 0.2 ≥/MPa
Elongation 91 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 112~440 -
HRC 30 -

Physical Properties

Thermal expansion 84-94 e-6/K
Thermal conductivity 58-86 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9583-0651 째C
Density 7035-3103 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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