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Grade2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Grade2

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This page is mainly introduced the Grade2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Grade2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Grade2

Steel Garde:Grade2
Type:Special Alloy
Country:USA
Standard:GBT
Application:

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
Grade21	AISI	USA

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	204～146	σb/MPa
Yield Strength	854	σ 0.2 ≥/MPa
Elongation	16	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	251～390	-
HRC	30	-

Physical Properties

Thermal expansion	77-84	e-6/K
Thermal conductivity	48-46	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5225-8631	째C
Density	1224-3358	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)
Grade2 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