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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	944～748	σb/MPa
Yield Strength	053	σ 0.2 ≥/MPa
Elongation	25	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	826～284	-
HRC	30	-

Physical Properties

Thermal expansion	73-33	e-6/K
Thermal conductivity	17-37	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3624-5276	째C
Density	2873-1696	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