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A779 Grade 1860

America ASTM A779Grade1860 预应力混凝土用应力消除未涂覆的密实七股钢丝绞绳 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A779Grade1860 / A779 Grade 1860
Category Grade Standard Region/Area Standard Content
Metals A779 Grade 1860 ASTM A779/A779M America 预应力混凝土用应力消除未涂覆的密实七股钢丝绞绳

Chemical composition(mass fraction)(wt.%) of the A779 Grade 1860

Element Min Max Similar
S - 0.0500 -
P - 0.0400 -

Mechanical Properties of steel grade A779 Grade 1860

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)
572 (≥) 799 (≥) 22 22 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade A779 Grade 1860

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
43 - -     0.14 -  
832 883 - 21.3 323   -  
444 - 11 13.2   121 442

Heat Treatment of steel grade A779 Grade 1860

Heat treated : 1786°C - 1689°C

Technological Curves of steel grade A779 Grade 1860

Cross Reference Table (Equivalent Grade) of A779 Grade 1860

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