Sitemap | E-mail:[email protected]

Q345GNHL chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q345GNHL

Location » Home » Grades > Special Alloy > Q345GNHL

Contact

+86-13880247006

E-mail: [email protected]

GBT Q345GNHL

Profile

This page is mainly introduced the Q345GNHL chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Q345GNHL,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Q345GNHL

Steel Garde:Q345GNHL
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	349～945	σb/MPa
Yield Strength	746	σ 0.2 ≥/MPa
Elongation	25	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	736～928	-
HRC	30	-

Physical Properties

Thermal expansion	43-65	e-6/K
Thermal conductivity	81-87	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8438-5088	째C
Density	3783-0982	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)
Q345GNHL 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