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America SAE 5140H Hardenability bands for carbon and alloy H steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 5140H / 5140 H
Category Grade Standard Region/Area Standard Content
Metals 5140 H SAE J 1268 America Hardenability bands for carbon and alloy H steels

Chemical composition(mass fraction)(wt.%) of the 5140 H

Element Min Max Similar

Mechanical Properties of steel grade 5140 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)
445 (≥) 997 (≥) 12 23 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade 5140 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
14 - -     0.14 -  
287 968 - 34.3 112   -  
787 - 31 31.2   311 334

Heat Treatment of steel grade 5140 H

Heat treated : 1798°C - 1936°C

Technological Curves of steel grade 5140 H

Cross Reference Table (Equivalent Grade) of 5140 H

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