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Korea KS E690DD High yield strengh steel bars and sections - Part 3 :Products supplied in the heat - treated(quenched+tempered) condition and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: E690DD / E690DD
Category Grade Standard Region/Area Standard Content
Metals E690DD KS D ISO 4950-3 Korea High yield strengh steel bars and sections - Part 3 :Products supplied in the heat - treated(quenched+tempered) condition

Chemical composition(mass fraction)(wt.%) of the E690DD

Element Min Max Similar
C - 0.2000 -
Mn - 1.7000 -
P - 0.0350 -
S - 0.0350 -
Si 0.1000 0.8000 -
Ni - 2.0000 -
Cr - 2.0000 -
Mo - 1.0000 -
Cu - 1.5000 -
V - 0.1000 -
Ti - 0.2000 -
Zr - 0.1500 -
B - 0.0050 -
Al - 0.0200 -
N - 0.0200 -
Nb - 0.0600 -

Mechanical Properties of steel grade E690DD

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)
552 (≥) 344 (≥) 41 21 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade E690DD

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
23 - -     0.33 -  
449 473 - 43.3 142   -  
595 - 21 44.2   423 431

Heat Treatment of steel grade E690DD

Heat treated : 1171°C - 1673°C

Technological Curves of steel grade E690DD

Cross Reference Table (Equivalent Grade) of E690DD

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