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Description

Australia AS 5145H Australia Structural steel and 5145H Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 5145H
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 5145H AS Australia Australia Structural steel
X1320H
X3312H
4130H
4140H
4150H
X4317H
4340 H
4620 H
5120H
5122H

Chemical composition(mass fraction)(wt.%) of the 5145H

C(%) Si(%) Mn(%) P(%) S(%) Cr(%)
0.42-0.49 0.10-0.35 0.60-1.00 0.040 0.040 0.60-1.00

Mechanical Properties of steel grade 5145H

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)
744 (≥) 395 (≥) 22 14 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade 5145H

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
13 - -     0.11 -  
397 595 - 13.3 111   -  
221 - 11 21.2   222 333

Heat Treatment of steel grade 5145H

Heat treated : 1766°C - 1557°C

Technological Curves of steel grade 5145H

Cross Reference Table (Equivalent Grade) of 5145H

Grade Standard Country Application
5145H AS Australia Australia Structural steel

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