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 341~841 σb/MPa
Yield Strength 220 σ 0.2 ≥/MPa
Elongation 36 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 313~682 -
HRC 30 -

Physical Properties

Thermal expansion 15-59 e-6/K
Thermal conductivity 98-67 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7793-6032 째C
Density 2375-5891 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