Q235GJ-C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q235GJ-C

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GBT Q235GJ-C

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This page is mainly introduced the Q235GJ-C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q235GJ-C,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Q235GJ-C
  • Steel Garde:Q235GJ-C
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 744~984 σb/MPa
Yield Strength 026 σ 0.2 ≥/MPa
Elongation 55 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 178~201 -
HRC 30 -

Physical Properties

Thermal expansion 31-70 e-6/K
Thermal conductivity 02-14 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4497-7740 째C
Density 6611-6230 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)
Q235GJ-C 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

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