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A706 Grade 550

America ASTM A706Grade550 混泥土配筋用变形低合金光面无节钢筋 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A706Grade550 / A706 Grade 550
Category Grade Standard Region/Area Standard Content
Metals A706 Grade 550 ASTM A706/A706M America 混泥土配筋用变形低合金光面无节钢筋

Chemical composition(mass fraction)(wt.%) of the A706 Grade 550

Element Min Max Similar
C - 0.3300 -
Mn - 1.5600 -
P - 0.0430 -
S - 0.0530 -
Si - 0.5500 -
CEV - 0.5500 -

Mechanical Properties of steel grade A706 Grade 550

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)
112 (≥) 239 (≥) 22 41 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade A706 Grade 550

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
12 - -     0.24 -  
557 225 - 12.3 331   -  
736 - 22 44.2   234 412

Heat Treatment of steel grade A706 Grade 550

Heat treated : 1876°C - 1743°C

Technological Curves of steel grade A706 Grade 550

Cross Reference Table (Equivalent Grade) of A706 Grade 550

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