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A 29 4820

Description

USA SAE A 29/A 29M (2012), A 29 4820 Specialsteel Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 29 4820
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 29 4820 Precipitation-Hardening SAE USA Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for

Chemical composition(mass fraction)(wt.%) of the A 29 4820

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 29 4820

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)
957 (≥) 465 (≥) 11 33 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade A 29 4820

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
22 - -     0.43 -  
586 914 - 13.3 323   -  
566 - 31 43.2   431 332

Heat Treatment of steel grade A 29 4820

Heat treated : 1997°C - 1612°C

Technological Curves of steel grade A 29 4820

Cross Reference Table (Equivalent Grade) of A 29 4820

Relevant standard of A 29 4820

A 29/A 29M (2012) Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for A-29-A-29M-(2012).pdf

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