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America SAE 4042H Hardenability bands for carbon and alloy H steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 4042H / 4042 H
Category Grade Standard Region/Area Standard Content
Metals 4042 H SAE J 1268 America Hardenability bands for carbon and alloy H steels

Chemical composition(mass fraction)(wt.%) of the 4042 H

Element Min Max Similar

Mechanical Properties of steel grade 4042 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)
294 (≥) 537 (≥) 32 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade 4042 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
44 - -     0.21 -  
778 891 - 24.3 321   -  
312 - 11 42.2   442 433

Heat Treatment of steel grade 4042 H

Heat treated : 1722°C - 1821°C

Technological Curves of steel grade 4042 H

Cross Reference Table (Equivalent Grade) of 4042 H

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