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Q235q chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q235q

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GBT Q235q

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This page is mainly introduced the Q235q chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q235q,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Q235q

Steel Garde:Q235q
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
Q235q C		China
Q235q D		China
Q235q	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	197～279	σb/MPa
Yield Strength	749	σ 0.2 ≥/MPa
Elongation	28	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	707～379	-
HRC	30	-

Physical Properties

Thermal expansion	11-41	e-6/K
Thermal conductivity	18-71	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1841-4527	째C
Density	8627-4049	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)
Q235q 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