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Australia AS 300 Structural steel - welded I sections and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 300 / 300
Category Grade Standard Region/Area Standard Content
Metals 300 AS/NZS 3679.2 Australia Structural steel - welded I sections

Chemical composition(mass fraction)(wt.%) of the 300

Element Min Max Similar
C - 0.2500 -
Mn - 1.6000 -
P - 0.0400 -
S - 0.0400 -
Si - 0.5000 -
Ni - 0.5000 -
Cr - 0.3000 -
Mo - 0.1000 -
Cu - 0.5000 -
V - 0.0300 -
Ti - 0.0400 -
Nb - 0.0200 -
Al+Ti - 0.1500 -
Nb+V - 0.0300 -
Cr+Ni+Cu+Mo - 1.0000 -
CEV - 0.4400 -

Mechanical Properties of steel grade 300

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)
634 (≥) 132 (≥) 14 42 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade 300

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 - -     0.12 -  
562 668 - 14.3 433   -  
516 - 11 32.2   141 113

Heat Treatment of steel grade 300

Heat treated : 1334°C - 1144°C

Technological Curves of steel grade 300

Cross Reference Table (Equivalent Grade) of 300

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