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NBR 5922 Class Ⅲ

Brazil NBR NBR5922ClassⅢ Road vehicles - Seamless low carbon steel tubing annealed for diesel fuel injection - Specification and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals NBR 5922 Class Ⅲ ABNT NBR 5922 Brazil Road vehicles - Seamless low carbon steel tubing annealed for diesel fuel injection - Specification

Chemical composition(mass fraction)(wt.%) of the NBR 5922 Class Ⅲ

Element Min Max Similar
C - 0.1800 -
Mn 0.4000 - -
P - 0.0500 -
S - 0.0500 -
Si - 0.0350 -

Mechanical Properties of steel grade NBR 5922 Class Ⅲ

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)
821 (≥) 413 (≥) 12 14 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade NBR 5922 Class Ⅲ

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
32 - -     0.23 -  
124 276 - 33.3 221   -  
699 - 33 43.2   241 311

Heat Treatment of steel grade NBR 5922 Class Ⅲ

Heat treated : 1284°C - 1995°C

Technological Curves of steel grade NBR 5922 Class Ⅲ

Cross Reference Table (Equivalent Grade) of NBR 5922 Class Ⅲ

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