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America SAE CR3 Categorization and properties of low-carbon automotive sheet steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: CR3 / CR 3
Category Grade Standard Region/Area Standard Content
Metals CR 3 SAE J 2329 America Categorization and properties of low-carbon automotive sheet steels

Chemical composition(mass fraction)(wt.%) of the CR 3

Element Min Max Similar
S - 0.0300 -
P - 0.0300 -
Mn - 0.5000 -
C - 0.1000 -
Al 0.0200 - -

Mechanical Properties of steel grade CR 3

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)
614 (≥) 955 (≥) 24 32 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade CR 3

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
41 - -     0.23 -  
414 629 - 33.3 412   -  
276 - 44 44.2   344 332

Heat Treatment of steel grade CR 3

Heat treated : 1692°C - 1219°C

Technological Curves of steel grade CR 3

Cross Reference Table (Equivalent Grade) of CR 3

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