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DR 550 RCX

Brazil NBR DR550RCX Cold reduced steel mill products - Electrolytic tinplate and electrolytic chromium/chromium oxide coated sheets or uncoated sheets - Specification and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: DR550RCX / DR 550 RCX
Category Grade Standard Region/Area Standard Content
Metals DR 550 RCX ABNT NBR 6665 Brazil Cold reduced steel mill products - Electrolytic tinplate and electrolytic chromium/chromium oxide coated sheets or uncoated sheets - Specification

Chemical composition(mass fraction)(wt.%) of the DR 550 RCX

Element Min Max Similar
C - 0.1300 -
Mn - 0.6000 -
P - 0.0300 -
S - 0.0300 -
Si - 0.0300 -
Ni - 0.1500 -
Cr - 0.1000 -
Cu - 0.2000 -
Al 0.0100 0.0800 -
Others Each - 0.0200 -

Mechanical Properties of steel grade DR 550 RCX

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)
246 (≥) 347 (≥) 21 33 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade DR 550 RCX

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 - -     0.13 -  
266 218 - 32.3 414   -  
572 - 13 13.2   231 213

Heat Treatment of steel grade DR 550 RCX

Heat treated : 1347°C - 1999°C

Technological Curves of steel grade DR 550 RCX

Cross Reference Table (Equivalent Grade) of DR 550 RCX

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