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AISI 4320 Steel, annealed (heated to 850°C (1560°F), furnace cooled 15°C/hr. to 420°C, air cooled), 25 mm (1 in.) round
Categories:
Metal
;
Ferrous Metal
;
Alloy Steel
;
AISI 4000 Series Steel
;
Low Alloy Steel
;
Carbon Steel
;
Low Carbon Steel
Key Words:
UNS G43200, ASTM A322, ASTM A331, ASTM A505, ASTM A519, ASTM A535
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Physical Properties
Metric
English
Comments
Density
7.85
g/cc
0.284
lb/in³
Mechanical Properties
Metric
English
Comments
Hardness, Brinell
163
163
Hardness, Knoop
184
184
Converted from Brinell
Hardness, Rockwell B
84
84
Converted from Brinell
Hardness, Vickers
170
170
Converted from Brinell
Tensile Strength, Ultimate
580
MPa
84100
psi
Tensile Strength, Yield
425
MPa
61600
psi
Elongation at Break
29 %
29 %
in 50 mm
Reduction of Area
58.4 %
58.4 %
Modulus of Elasticity
205
GPa
29700
ksi
Typical for steel
Bulk Modulus
160
GPa
23200
ksi
Typical for steel
Poissons Ratio
0.29
0.29
Calculated
Machinability
60 %
60 %
annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.
Shear Modulus
80.0
GPa
11600
ksi
Typical for steel
Electrical Properties
Metric
English
Comments
Electrical Resistivity
0.0000245
ohm-cm
0.0000245
ohm-cm
Typical 4000 series steel
Thermal Properties
Metric
English
Comments
CTE, linear
11.3
µm/m-°C
@Temperature -18.0 - 95.0 °C
6.28
µin/in-°F
@Temperature -0.400 - 203 °F
condition of specimen unknown
Specific Heat Capacity
0.475
J/g-°C
0.114
BTU/lb-°F
Typical 4000 series steel
Thermal Conductivity
44.5
W/m-K
309
BTU-in/hr-ft²-°F
Typical steel
Component Elements Properties
Metric
English
Comments
Carbon, C
0.17 - 0.22 %
0.17 - 0.22 %
Chromium, Cr
0.40 - 0.60 %
0.40 - 0.60 %
Iron, Fe
95.855 - 96.98 %
95.855 - 96.98 %
As remainder
Manganese, Mn
0.45 - 0.65 %
0.45 - 0.65 %
Molybdenum, Mo
0.20 - 0.30 %
0.20 - 0.30 %
Nickel, Ni
1.65 - 2.0 %
1.65 - 2.0 %
Phosphorus, P
<= 0.035 %
<= 0.035 %
Silicon, Si
0.15 - 0.30 %
0.15 - 0.30 %
Sulfur, S
<= 0.040 %
<= 0.040 %
References
for this datasheet.
Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's
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Users viewing this material also viewed the following:
AISI 4320 Steel, normalized 925°C (1700°F) in 32 mm rounds, machined to 13.7 mm rounds, pseudocarburized 925°C (1700°F) for 8 hrs., oil quenched, 150°C (300°F) temper, tested in 12.8 mm rounds
AISI 4320 Steel, normalized 895°C (1640°F), air cooled, 100 mm (4 in.) round
AISI 4320 Steel, normalized 895°C (1640°F), air cooled, 50 mm (2 in.) round
AISI 4320 Steel, direct quench from pot (carburized 925°C (1700°F) for 8 hrs., quenched in agitated oil, 230°C (450°F) temper), 1.5 mm case depth
AISI 4320 Steel, single quenched and tempered (carburized 925°C (1700°F) for 8hrs, pot cooled, reheated to 830°C (1525°F), quenched in agitated oil, 150°C (300°F) temper)
M432AQ / 7707
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