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A 42 Grado RB Ⅱ

Spain UNE A42GradoRBⅡ Carbon and carbon-manganese steel plates for boiters and pressure purposes. Types and grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A42GradoRBⅡ / A 42 Grado RB Ⅱ
Category Grade Standard Region/Area Standard Content
Metals A 42 Grado RB Ⅱ UNE 36087-1 Spain Carbon and carbon-manganese steel plates for boiters and pressure purposes. Types and grades

Chemical composition(mass fraction)(wt.%) of the A 42 Grado RB Ⅱ

Element Min Max Similar

Mechanical Properties of steel grade A 42 Grado RB Ⅱ

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)
975 (≥) 468 (≥) 24 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade A 42 Grado RB Ⅱ

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 - -     0.11 -  
681 173 - 14.3 414   -  
383 - 21 34.2   232 421

Heat Treatment of steel grade A 42 Grado RB Ⅱ

Heat treated : 1334°C - 1647°C

Technological Curves of steel grade A 42 Grado RB Ⅱ

Cross Reference Table (Equivalent Grade) of A 42 Grado RB Ⅱ

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