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America SAE 4621H Former SAE Standard and Former SAE Ex-Steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 4621H / 4621 H
Category Grade Standard Region/Area Standard Content
Metals 4621 H SAE J 1249 America Former SAE Standard and Former SAE Ex-Steels

Chemical composition(mass fraction)(wt.%) of the 4621 H

Element Min Max Similar

Mechanical Properties of steel grade 4621 H

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)
781 (≥) 717 (≥) 34 32 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade 4621 H

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
43 - -     0.22 -  
711 581 - 12.3 241   -  
733 - 41 44.2   112 131

Heat Treatment of steel grade 4621 H

Heat treated : 1156°C - 1655°C

Technological Curves of steel grade 4621 H

Cross Reference Table (Equivalent Grade) of 4621 H

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