SUS 440C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 440C

JIS SUS 440C

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This page is mainly introduced the SUS 440C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 440C,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel wires

Cross Reference Table(Equivalent Materials):

Material Standard Country
SUS 440C JIS Japan
SUS 440C JIS Japan
SUS 440C JIS Japan

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.95  1.20
Si   1.00
Mn   1.00
P   0.04
S   0.03
Cr 16.00  18.00
Ni   0.60
Mo   0.75
N  

Mechanical Properties

Tensile strength 373~210 σb/MPa
Yield Strength 746 σ 0.2 ≥/MPa
Elongation 82 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 573~540 -
HRC 30 -

Physical Properties

Thermal expansion 11-38 e-6/K
Thermal conductivity 74-28 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4300-7160 째C
Density 9963-5045 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)
SUS 440C 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