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A71145

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A70354 A71204
#A71145

Description

China GBT A71145 China structural steel and alloy steel and A71145 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: A71145
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel A71145 GBT China China structural steel and alloy steel
U41302
U41352
A20374
A20404
A30304
A30354
A30424
A70204
A70284
A70354

Chemical composition(mass fraction)(wt.%) of the A71145

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%) Al(%)
0.14-0.20 Max 0.40 1.20-1.60 0.035 0.035 — 0.0005-0.0035 0.02

Mechanical Properties of steel grade A71145

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)
144 (≥) 952 (≥) 21 33 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade A71145

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
32 - -     0.22 -  
697 444 - 13.3 311   -  
572 - 31 31.2   211 314

Heat Treatment of steel grade A71145

Heat treated : 1293°C - 1115°C

Technological Curves of steel grade A71145

Cross Reference Table (Equivalent Grade) of A71145

Grade Standard Country Application
A71145 GBT China China structural steel and alloy steel
A70354 A71204
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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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