Sitemap | E-mail:[email protected]

Q345 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q345

Location » Home » Grades > Special Alloy > Q345

Contact

+86-13880247006

E-mail: [email protected]

GBT Q345

Profile

This page is mainly introduced the Q345 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q345,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Q345

Steel Garde:Q345
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
Q345q E		China
Q345q C		China
Q345q	GBT	China
Q345q	GBT	China
Q345q	GBT	China
Q345	GBT	China
Q345	GBT	China
Q345	GBT	China
Q345	GBT	China
Q345GNH	GBT	China
Q345GNHL	GBT	China
Q345GJ-C	GBT	China
Q345GJ-D	GBT	China
Q345GJ-E	GBT	China
Q345GJZ-C	GBT	China
Q345GJZ-D	GBT	China
Q345GJZ-E	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	492～991	σb/MPa
Yield Strength	497	σ 0.2 ≥/MPa
Elongation	79	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	425～601	-
HRC	30	-

Physical Properties

Thermal expansion	34-43	e-6/K
Thermal conductivity	58-36	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1212-6532	째C
Density	4634-9211	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)
Q345 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