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America SAE DQ&T Automotive ductile (nodular) iron castings and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: DQ&T / DQ&T
Category Grade Standard Region/Area Standard Content
Metals DQ&T SAE J 434 America Automotive ductile (nodular) iron castings

Chemical composition(mass fraction)(wt.%) of the DQ&T

Element Min Max Similar
Si 1.8000 3.0000 -
S - 0.0350 -
P - 0.0500 -
Other - - -
Mn 0.1000 1.0000 -
Mg 0.0250 0.0600 -
C 3.2000 4.1000 -

Mechanical Properties of steel grade DQ&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)
989 (≥) 612 (≥) 14 22 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade DQ&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 - -     0.12 -  
772 556 - 24.3 422   -  
238 - 33 23.2   343 434

Heat Treatment of steel grade DQ&T

Heat treated : 1132°C - 1535°C

Technological Curves of steel grade DQ&T

Cross Reference Table (Equivalent Grade) of DQ&T

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