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U3 U4
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Description

Australia AS 3 Australia Structural steel and 3 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 3
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 3 AS Australia Australia Structural steel
M1030
M1040
X1315
X1320
X1325
1340
X1340
X1345
U1
U3

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

C(％) Si(％) Mn(％) P(％) S(％)
Max 0.25 0.10-0.40 Max 1.40 0.04 0.040

Mechanical Properties of steel grade 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)
342 (≥) 799 (≥) 24 22 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade 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
23 - -     0.33 -  
393 655 - 11.3 222   -  
788 - 22 31.2   114 444

Heat Treatment of steel grade 3

Heat treated : 1537°C - 1445°C

Technological Curves of steel grade 3

Cross Reference Table (Equivalent Grade) of 3

Grade Standard Country Application
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
8Cr3 China Alloy tool steel - hot-work die steel
4Cr3Mo3SiV China Alloy tool steel - hot-work die steel
7Mn15Cr2A13V2WMo China Alloy tool steel - Without magnetic steel mold
U3 U4
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