ASTM B4N,B4Q chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM B4N,B4Q

AISI ASTM B4N,B4Q

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This page is mainly introduced the ASTM B4N,B4Q chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM B4N,B4Q,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ASTM B4N,B4Q
  • Steel Garde:ASTM B4N,B4Q
  • Type:Special Alloy
  • Country:USA
  • Standard:AISI
  • Application:

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 859~786 σb/MPa
Yield Strength 275 σ 0.2 ≥/MPa
Elongation 22 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 950~640 -
HRC 30 -

Physical Properties

Thermal expansion 26-88 e-6/K
Thermal conductivity 99-08 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8326-2333 째C
Density 6361-9996 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)
ASTM B4N,B4Q Special Alloy 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