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Romania STAS OLT45K Steel tubes for high-temperature service and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: OLT45K / OLT 45 K
Category Grade Standard Region/Area Standard Content
Metals OLT 45 K STAS 8184 Romania Steel tubes for high-temperature service

Chemical composition(mass fraction)(wt.%) of the OLT 45 K

Element Min Max Similar

Mechanical Properties of steel grade OLT 45 K

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)
277 (≥) 896 (≥) 43 44 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade OLT 45 K

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
14 - -     0.13 -  
717 749 - 41.3 223   -  
311 - 34 14.2   113 344

Heat Treatment of steel grade OLT 45 K

Heat treated : 1412°C - 1836°C

Technological Curves of steel grade OLT 45 K

Cross Reference Table (Equivalent Grade) of OLT 45 K

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