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A 791 Grade 25-4-4

Favorite Datasheet
A 268 25-4-4 A 803 Grade 25-4-4
#25-4-4

Description

USA SAE A 791/A 791M, A 791 Grade 25-4-4 Specialsteel Aluminum-Zinc Alloy-Coated Wire Strand and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 791 Grade 25-4-4
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 791 Grade 25-4-4 Precipitation-Hardening SAE USA Aluminum-Zinc Alloy-Coated Wire Strand

Chemical composition(mass fraction)(wt.%) of the A 791 Grade 25-4-4

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo
≤0.025 ≤0.75 ≤1.00 ≤0.04 ≤0.04 3.35 -4.50 24.50 -26.00 ≤ ≥ ≤0.50 ≤ ≥ ≤ ≥ ≤0.035 3.50 -4.50

Mechanical Properties of steel grade A 791 Grade 25-4-4

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)
126 (≥) 317 (≥) 43 12 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade A 791 Grade 25-4-4

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
44 - -     0.44 -  
552 137 - 31.3 121   -  
243 - 43 44.2   412 311

Heat Treatment of steel grade A 791 Grade 25-4-4

Heat treated : 1461°C - 1341°C

Technological Curves of steel grade A 791 Grade 25-4-4

Cross Reference Table (Equivalent Grade) of A 791 Grade 25-4-4

Grade Standard Country Application
25-4-4
25-4-4
25-4-4

Relevant standard of A 791 Grade 25-4-4

A 791/A 791M Aluminum-Zinc Alloy-Coated Wire Strand A-791-A-791M.pdf
A 268 25-4-4 A 803 Grade 25-4-4
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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