W50318 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of W50318

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AISI W50318

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This page is mainly introduced the W50318 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of W50318,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Martensitic 7% Cr-Mo steel arc welding electrode (E8018-B7)

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Si   1.00
Mn   2.00
P   0.045
S   0.03
Ni 13.00  15.00
Cr 17.00  19.00
Al  
Cu  
Ti  
Fe  
N  
Mo 1.75  2.75
V  

Mechanical Properties

Tensile strength 266~140 σb/MPa
Yield Strength 826 σ 0.2 ≥/MPa
Elongation 68 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 871~935 -
HRC 30 -

Physical Properties

Thermal expansion 26-87 e-6/K
Thermal conductivity 34-24 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9519-9937 째C
Density 8315-3211 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)
W50318 Stainless 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