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A 791 Grade 29-4-2

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A 791 Grade 29-4 A 791 Grade 29-4C
#29-4

Description

USA SAE A 791/A 791M, A 791 Grade 29-4-2 Specialsteel Aluminum-Zinc Alloy-Coated Wire Strand and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 791 Grade 29-4-2
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 791 Grade 29-4-2 Precipitation-Hardening SAE USA Aluminum-Zinc Alloy-Coated Wire Strand

Chemical composition(mass fraction)(wt.%) of the A 791 Grade 29-4-2

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 29-4-2

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)
974 (≥) 351 (≥) 21 13 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical Properties of steel grade A 791 Grade 29-4-2

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 - -     0.23 -  
826 576 - 21.3 334   -  
117 - 23 14.2   341 142

Heat Treatment of steel grade A 791 Grade 29-4-2

Heat treated : 1765°C - 1979°C

Technological Curves of steel grade A 791 Grade 29-4-2

Cross Reference Table (Equivalent Grade) of A 791 Grade 29-4-2

Grade Standard Country Application
29-4
29-4C
29-4-2
29-4
29-4-2
29-4C
29-4
29-4-2
29-4
29-4-2
29-4C(S44735)
29-4-2(S44800)
X2CrMoTi29-4
X2CrMoTi29-4

Relevant standard of A 791 Grade 29-4-2

A 791/A 791M Aluminum-Zinc Alloy-Coated Wire Strand A-791-A-791M.pdf
A 791 Grade 29-4 A 791 Grade 29-4C
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