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AISI 4027 Steel, water quenched 865°C (1590°F), 595°C (1100°F) temper, 14 mm (0.55 in.) round
Categories:
Metal
;
Ferrous Metal
;
Alloy Steel
;
AISI 4000 Series Steel
;
Low Alloy Steel
;
Carbon Steel
;
Low Carbon Steel
Material Notes:
As quenched hardness: 50 HRC surface, 50 HRC 1/2 radius, 50 HRC center.
Key Words:
UNS G40270, ASTM A322, ASTM A331, ASTM A519, SAE J404, SAE J412, SAE J770, alloy steels
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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
262
262
Hardness, Knoop
287
287
Converted from Brinell
Hardness, Rockwell B
98
98
Converted from Brinell
Hardness, Rockwell C
26
26
Converted from Brinell
Hardness, Vickers
276
276
Converted from Brinell
Tensile Strength, Ultimate
896
MPa
130000
psi
Tensile Strength, Yield
800
MPa
116000
psi
Elongation at Break
20 %
20 %
in 50 mm
Reduction of Area
64.5 %
64.5 %
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
70 %
70 %
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
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
0.25 - 0.30 %
0.25 - 0.30 %
Iron, Fe
98.08 - 98.7 %
98.08 - 98.7 %
As remainder
Manganese, Mn
0.70 - 0.90 %
0.70 - 0.90 %
Molybdenum, Mo
0.20 - 0.30 %
0.20 - 0.30 %
Phosphorus, P
<= 0.035 %
<= 0.035 %
Silicon, Si
0.15 - 0.35 %
0.15 - 0.35 %
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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AISI 4027 Steel, water quenched 865°C (1590°F), 540°C (1000°F) temper, 25 mm (1 in.) round
AISI 4027 Steel, water quenched 865°C (1590°F), 540°C (1000°F) temper, 50 mm (2 in.) round
AISI 4027 Steel, water quenched 865°C (1590°F), 595°C (1100°F) temper, 100 mm (4 in.) round
AISI 4027 Steel, water quenched 865°C (1590°F), 595°C (1100°F) temper, 25 mm (1 in.) round
M4027N / 7448
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