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France AFNOR NF E690T Iron and steel products. High yield strength steel plates for delivery in the treated condition for welded constructions. Grades and types and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: E690T / E 690 T
Category Grade Standard Region/Area Standard Content
Metals E 690 T NF A36-204 France Iron and steel products. High yield strength steel plates for delivery in the treated condition for welded constructions. Grades and types

Chemical composition(mass fraction)(wt.%) of the E 690 T

Element Min Max Similar

Mechanical Properties of steel grade E 690 T

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)
641 (≥) 811 (≥) 34 32 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade E 690 T

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 -  
455 763 - 32.3 133   -  
625 - 33 11.2   121 244

Heat Treatment of steel grade E 690 T

Heat treated : 1428°C - 1519°C

Technological Curves of steel grade E 690 T

Cross Reference Table (Equivalent Grade) of E 690 T

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