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America SAE 19-9DL Special Purpose Alloys ( and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 19-9DL / 19-9 DL
Category Grade Standard Region/Area Standard Content
Metals 19-9 DL SAE J 467B America Special Purpose Alloys (

Chemical composition(mass fraction)(wt.%) of the 19-9 DL

Element Min Max Similar
C 0.2800 0.3500 -
Mn 0.7500 1.5000 -
P - 0.0400 -
S - 0.0300 -
Si 0.3000 0.8000 -
Ni 8.0000 11.0000 -
Cr 18.0000 21.0000 -
Mo 1.0000 1.7500 -
Cu - 0.5000 -
W 1.0000 1.7500 -
Ti 0.1000 0.3500 -
Nb+Ta 0.2500 0.6000 -

Mechanical Properties of steel grade 19-9 DL

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)
228 (≥) 432 (≥) 41 21 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade 19-9 DL

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
12 - -     0.32 -  
772 557 - 41.3 242   -  
353 - 42 24.2   144 313

Heat Treatment of steel grade 19-9 DL

Heat treated : 1225°C - 1675°C

Technological Curves of steel grade 19-9 DL

Cross Reference Table (Equivalent Grade) of 19-9 DL

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