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 625~243 σb/MPa
Yield Strength 869 σ 0.2 ≥/MPa
Elongation 87 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 493~718 -
HRC 30 -

Physical Properties

Thermal expansion 18-82 e-6/K
Thermal conductivity 83-24 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1407-4753 째C
Density 9328-9684 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