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America SAE 3450 Former SAE Standard and Former SAE Ex-Steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 3450 / 3450
Category Grade Standard Region/Area Standard Content
Metals 3450 SAE J 1249 America Former SAE Standard and Former SAE Ex-Steels

Chemical composition(mass fraction)(wt.%) of the 3450

Element Min Max Similar

Mechanical Properties of steel grade 3450

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)
778 (≥) 629 (≥) 21 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade 3450

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
33 - -     0.41 -  
429 455 - 12.3 423   -  
723 - 24 13.2   231 341

Heat Treatment of steel grade 3450

Heat treated : 1744°C - 1245°C

Technological Curves of steel grade 3450

Cross Reference Table (Equivalent Grade) of 3450

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