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490

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460 U33202
#490

Description

China GBT 490 China structural steel and alloy steel and 490 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 490
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 490 GBT China China structural steel and alloy steel
L13703
L13704
L13705
L14203
L14204
L14205
320
360
410
460

Chemical composition(mass fraction)(wt.%) of the 490

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Cu(%)
Max 0.23 Max 0.35 0.80-1.50 0.035 0.035 0.25 0.3 0.1 0.3

Mechanical Properties of steel grade 490

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
128 (≥) 727 (≥) 33 42 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade 490

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
21 - -     0.41 -  
396 349 - 23.3 444   -  
471 - 22 43.2   233 213

Heat Treatment of steel grade 490

Heat treated : 1251°C - 1348°C

Technological Curves of steel grade 490

Cross Reference Table (Equivalent Grade) of 490

Grade Standard Country Application
5-490NTA AS Australia Australia Structural steel
7-490RNTA AS Australia Australia Structural steel
490 GBT China China structural steel and alloy steel
U34902 GBT China China structural steel and alloy steel
SS490 CNS China China Taiwan Structural steel
SM490A CNS China China Taiwan Structural steel
SM490B CNS China China Taiwan Structural steel
SM490C CNS China China Taiwan Structural steel
SM490YA CNS China China Taiwan Structural steel
SM490YB CNS China China Taiwan Structural steel
SMA490AW CNS China China Taiwan Structural steel
SMA490BW CNS China China Taiwan Structural steel
SMA490CW CNS China China Taiwan Structural steel
SMA490AP CNS China China Taiwan Structural steel
SMA490BP CNS China China Taiwan Structural steel
SMA490CP CNS China China Taiwan Structural steel
SN490B CNS China China Taiwan Structural steel
SN490C CNS China China Taiwan Structural steel
SPPV 490 /SPPV 50 KS Korea Pressure vessel with carbon steel plate steel grade
460 U33202
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