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

SAE W108 Special

Profile

This page is mainly introduced the W108 Special chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of W108 Special,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 Extra 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 345~858 σb/MPa
Yield Strength 476 σ 0.2 ≥/MPa
Elongation 89 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 269~982 -
HRC 30 -

Physical Properties

Thermal expansion 72-96 e-6/K
Thermal conductivity 87-62 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7588-4765 째C
Density 6159-0635 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 Special 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