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490 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 490

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GBT 490

Catalog

490 Profile
490 Chemical composition
490 Mechanical Properties
490 Physical Properties
490 Heat treatment
490 Size Availability
490 Relevant products

Profile

This page is mainly introduced the 490 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 490,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
490

Steel Garde:490
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
5-490NTA	AS	Australia
7-490RNTA	AS	Australia
U34902	GBT	China
SS490	CNS	China
SM490A	CNS	China
SM490B	CNS	China
SM490C	CNS	China
SM490YA	CNS	China
SM490YB	CNS	China
SMA490AW	CNS	China
SMA490BW	CNS	China
SMA490CW	CNS	China
SMA490AP	CNS	China
SMA490BP	CNS	China
SMA490CP	CNS	China
SN490B	CNS	China
SN490C	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	918～920	σb/MPa
Yield Strength	955	σ 0.2 ≥/MPa
Elongation	26	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	256～166	-
HRC	30	-

Physical Properties

Thermal expansion	36-95	e-6/K
Thermal conductivity	63-97	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1497-5492	째C
Density	3534-3873	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)
490 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