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A30304

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A20404 A30354
#A30304

Description

China GBT A30304 China structural steel and alloy steel and A30304 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: A30304
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel A30304 GBT China China structural steel and alloy steel
U40302
U40352
U40402
U40452
L20158
U41252
U41302
U41352
A20374
A20404

Chemical composition(mass fraction)(wt.%) of the A30304

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％) Al(%)
0.26-0.34 Max 0.30 0.60-0.90 0.035 0.035 0.80-1.10 0.15-0.25 —

Mechanical Properties of steel grade A30304

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)
238 (≥) 696 (≥) 43 34 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade A30304

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
11 - -     0.33 -  
918 341 - 14.3 214   -  
824 - 23 41.2   243 113

Heat Treatment of steel grade A30304

Heat treated : 1321°C - 1454°C

Technological Curves of steel grade A30304

Cross Reference Table (Equivalent Grade) of A30304

Grade Standard Country Application
A30304 GBT China China structural steel and alloy steel
A20404 A30354
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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