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STKR 490

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Japan JIS STKR490 通用结构碳钢方管，矩形管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STKR490 / STKR 490
Category Grade Standard Region/Area Standard Content
Metals STKR 490 JIS G3466 Japan 通用结构碳钢方管，矩形管

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

Element Min Max Similar
Si - 0.5500 -
S - 0.0400 -
P - 0.0400 -
Mn - 1.5000 -
C - 0.1800 -

Mechanical Properties of steel grade STKR 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)
688 (≥) 636 (≥) 44 24 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade STKR 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
42 - -     0.34 -  
318 728 - 33.3 222   -  
265 - 34 12.2   122 331

Heat Treatment of steel grade STKR 490

Heat treated : 1826°C - 1324°C

Technological Curves of steel grade STKR 490

Cross Reference Table (Equivalent Grade) of STKR 490

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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