W108 Extra chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of W108 Extra

SAE W108 Extra

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This page is mainly introduced the W108 Extra chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of W108 Extra,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Tool and die steels

Cross Reference Table(Equivalent Materials):

Material Standard Country
W108 Commerial UNS USA
W108 Standard SAE USA
W108 Special SAE USA

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.70  0.85
Si 0.10  0.40
Mn 0.10  0.40
Cr  
V  

Mechanical Properties

Tensile strength 640~366 σb/MPa
Yield Strength 431 σ 0.2 ≥/MPa
Elongation 82 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 029~935 -
HRC 30 -

Physical Properties

Thermal expansion 53-30 e-6/K
Thermal conductivity 76-06 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6409-0902 째C
Density 6243-9443 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)
W108 Extra 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