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Description

Austria ONORM RC90 Austrian structural steel and RC90 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: RC90
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel RC90 ONORM Austria Austrian structural steel
RC40
RC45
RC50
RC55
RC60
RC65
RC70
RC75
RC80
RC85

Chemical composition(mass fraction)(wt.%) of the RC90

C(%) Si(%) Mn(%) P(%) S(%)
0.80-0.95 0.15-0.40 0.40-0.70 0.035 0.035

Mechanical Properties of steel grade RC90

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)
625 (≥) 216 (≥) 34 12 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade RC90

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
22 - -     0.13 -  
484 854 - 14.3 411   -  
519 - 23 32.2   211 443

Heat Treatment of steel grade RC90

Heat treated : 1781°C - 1853°C

Technological Curves of steel grade RC90

Cross Reference Table (Equivalent Grade) of RC90

Grade Standard Country Application
RC90 ONORM Austria Austrian structural steel

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