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A 791 Grade 29-4

Description

USA SAE A 791/A 791M, A 791 Grade 29-4 Specialsteel Aluminum-Zinc Alloy-Coated Wire Strand and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 791 Grade 29-4
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 791 Grade 29-4 Precipitation-Hardening SAE USA Aluminum-Zinc Alloy-Coated Wire Strand

Chemical composition(mass fraction)(wt.%) of the A 791 Grade 29-4

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo
≤0.01 ≤0.20 ≤0.30 ≤ ≥ ≤ ≥ ≤0.15 28.00 -30.00 ≤ ≥ ≤0.15 ≤ ≥ ≤ ≥ ≤0.02 3.50 -4.20

Mechanical Properties of steel grade A 791 Grade 29-4

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)
154 (≥) 979 (≥) 34 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade A 791 Grade 29-4

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 - -     0.14 -  
419 661 - 24.3 411   -  
274 - 42 23.2   421 312

Heat Treatment of steel grade A 791 Grade 29-4

Heat treated : 1313°C - 1127°C

Technological Curves of steel grade A 791 Grade 29-4

Cross Reference Table (Equivalent Grade) of A 791 Grade 29-4

Relevant standard of A 791 Grade 29-4

A 791/A 791M Aluminum-Zinc Alloy-Coated Wire Strand A-791-A-791M.pdf

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