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Description

Romania STAS/SR OL44.3 Structural steel and OL44.3 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: OL44.3
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel OL44.3 STAS/SR Romania Structural steel
OL32.1
OL34.1
OL37.1
OL37.2
OL37.3
OL7.4
OL42.1
OL42.2
OL42.3
OL44.2

Chemical composition(mass fraction)(wt.%) of the OL44.3

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%) Al(%)
0.20 0.50 1.10 0.045 0.045 0.30 0.30 0.30 0.025

Mechanical Properties of steel grade OL44.3

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)
761 (≥) 357 (≥) 22 11 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade OL44.3

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
31 - -     0.21 -  
743 479 - 14.3 343   -  
722 - 11 21.2   231 412

Heat Treatment of steel grade OL44.3

Heat treated : 1464°C - 1812°C

Technological Curves of steel grade OL44.3

Cross Reference Table (Equivalent Grade) of OL44.3

Grade Standard Country Application
OL44.2 STAS/SR Romania Structural steel
OL44.3 STAS/SR Romania Structural steel
OL44.4 STAS/SR Romania Structural steel
Q235 China Engineering and welding
Q235 B China Engineering and welding
Q235 C China Engineering and welding
Q235 D China Engineering and welding
Q235q C China Bridge structure with steel
Q235q D China Bridge structure with steel
Q345q E China Bridge structure with steel
Q345q C China Bridge structure with steel
ASTM 1030 ASTM USA General use carbon steel bar
UNS G10300 UNS USA General use carbon steel bar
ASTM 1013 ASTM USA General use carbon steel bar
UNS G10130 UNS USA General use carbon steel bar
T13 China Carbon tool steel
5Cr3Mn1SiMo1V China Alloy tool steel - Impact resistance tool steel
3Cr2W8V China Alloy tool steel - hot-work die steel
5Cr4Mo3SiMnVA1 China Alloy tool steel - hot-work die steel
3Cr3Mo3W2V China Alloy tool steel - hot-work die steel

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