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AISI 4720 H

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America AISI AISI4720H Hardenability bands for carbon and alloy H steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: AISI4720H / AISI 4720 H
Category Grade Standard Region/Area Standard Content
Metals AISI 4720 H SAE J 1268 America Hardenability bands for carbon and alloy H steels

Chemical composition(mass fraction)(wt.%) of the AISI 4720 H

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0400 -
P - 0.0300 -
Ni 0.8500 1.2500 -
Mo 0.1500 0.2500 -
Mn 0.4500 0.7500 -
Cu - 0.3500 -
Cr 0.3000 0.6000 -
C 0.1700 0.2300 -

Mechanical Properties of steel grade AISI 4720 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)
986 (≥) 789 (≥) 14 44 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade AISI 4720 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 - -     0.31 -  
157 437 - 44.3 342   -  
286 - 24 44.2   131 434

Heat Treatment of steel grade AISI 4720 H

Heat treated : 1445°C - 1217°C

Technological Curves of steel grade AISI 4720 H

Cross Reference Table (Equivalent Grade) of AISI 4720 H

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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