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China YB 75A 预应力钢丝及钢绞线用热轧盘条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 75A / 75A
Category Grade Standard Region/Area Standard Content
Metals 75A YB/T 146 China 预应力钢丝及钢绞线用热轧盘条

Chemical composition(mass fraction)(wt.%) of the 75A

Element Min Max Similar
Cu - 0.2000 -
S - 0.0250 -
P - 0.0250 -
Mn 0.3000 0.6000 -
Si 0.1200 0.3200 -
C 0.7300 0.7800 -

Mechanical Properties of steel grade 75A

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)
624 (≥) 374 (≥) 34 22 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade 75A

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
13 - -     0.31 -  
272 752 - 42.3 421   -  
382 - 24 13.2   414 232

Heat Treatment of steel grade 75A

Heat treated : 1866°C - 1765°C

Technological Curves of steel grade 75A

Cross Reference Table (Equivalent Grade) of 75A

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