D6AC chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of D6AC

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UNS D6AC

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This page is mainly introduced the D6AC chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of D6AC,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steel Sheet, Strip, and Plate 1.05Cr - 0.55Ni - 1.0Mo - 0.12V (0.42 - 0.48C) (D6AC) Consumable Electrode Vacuum Melted, Annealed
  • Steel Garde:D6AC
  • Type:Stainless Steels
  • Country:USA
  • Standard:UNS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 SAE AMS 6439D (2011) Steel Sheet, Strip, and Plate 1.05Cr - 0.55Ni - 1.0Mo - 0.12V (0.42 - 0.48C) (D6AC) Consumable Electrode Vacuum Melted, Annealed
  • Metallographic Structure:Precipitation-Hardening
  • Application:Steel Sheet, Strip, and Plate 1.05Cr - 0.55Ni - 1.0Mo - 0.12V (0.42 - 0.48C) (D6AC) Consumable Electrode Vacuum Melted, Annealed

Cross Reference Table(Equivalent Materials):

Material Standard Country
D6AC ASTM USA
D6AC ASTM USA
D6AC ASTM USA
D6AC ASTM USA
D6AC ASTM USA
D6AC ASTM USA
D6AC UNS USA
D6AC UNS USA
D6AC UNS USA
D6AC UNS USA
D6AC UNS USA

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.47
Si   0.22
Mn   0.75
P  
S  
Ni   0.55
Cr   1.05
Al  
Cu  
Ti  
Fe   remaining
Mo   1.00
Co  
V   0.10

Mechanical Properties

Tensile strength 250~513 σb/MPa
Yield Strength 608 σ 0.2 ≥/MPa
Elongation 31 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 164~885 -
HRC 30 -

Physical Properties

Thermal expansion 01-23 e-6/K
Thermal conductivity 33-36 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5715-5419 째C
Density 1814-1604 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)
D6AC 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