Q370q chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q370q

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GBT Q370q

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This page is mainly introduced the Q370q chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q370q,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Q370q
  • Steel Garde:Q370q
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
Q370q GBT China
Q370q GBT China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 185~783 σb/MPa
Yield Strength 533 σ 0.2 ≥/MPa
Elongation 11 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 621~512 -
HRC 30 -

Physical Properties

Thermal expansion 69-42 e-6/K
Thermal conductivity 74-22 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0301-7409 째C
Density 4621-8264 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)
Q370q 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