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Description

USA UNS SAE AMS-S-8949B (1998), D6AC Specialsteel Steel Bars, Plates, Sheets, Billets, and Reforging Stock Type D6AC and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: D6AC
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel D6AC Precipitation-Hardening UNS USA Steel Bars, Plates, Sheets, Billets, and Reforging Stock Type D6AC

Chemical composition(mass fraction)(wt.%) of the D6AC

C Si Mn P S Ni Cr Al Cu Ti Fe Mo Co V
≤0.47 ≤0.22 ≤0.75 ≤ ≥ ≤ ≥ ≤0.55 ≤1.05 ≤ ≥ ≤ ≥ ≤ ≥ ≤remaining ≤1.00 ≤ ≥ ≤0.10

Mechanical Properties of steel grade D6AC

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)
152 (≥) 255 (≥) 14 23 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade D6AC

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
44 - -     0.44 -  
759 748 - 33.3 124   -  
555 - 42 32.2   211 112

Heat Treatment of steel grade D6AC

Heat treated : 1634°C - 1476°C

Technological Curves of steel grade D6AC

Relevant standard of D6AC

SAE AMS-S-8949B (1998) Steel Bars, Plates, Sheets, Billets, and Reforging Stock Type D6AC SAE-AMS-S-8949B-(1998).pdf

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