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Ensinger PEI

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AISI 5140H Steel, oil quenched 845°C (1550°F), 540°C (1000°F) temper, 50 mm (2 in.) round
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 5000 Series Steel; Low Alloy Steel; Carbon Steel; Medium Carbon Steel
Material Notes: Oil quenched from 845°C, 540°C temper, 50 mm round. Post oil quenched hardness 46 HRC surface, 38 HRC half-radius, 35 HRC center
Key Words: UNS H51400, ASTM A304, SAE J1268, DIN 1.7006, AFNOR 42 C 2 (Fr), AFNOR 45 C 2 (Fr)
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Physical PropertiesOriginal ValueComments
Density 7.85 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 255
Hardness, Knoop 279Converted from Brinell
Hardness, Rockwell B 98Converted from Brinell
Hardness, Rockwell C 25Converted from Brinell
Hardness, Vickers 269Converted from Brinell
Tensile Strength, Ultimate 883 MPa
Tensile Strength, Yield 689 MPa
Elongation at Break 19.7 %in 50mm.
Modulus of Elasticity 205 GPaTypical for steel
Bulk Modulus 160 GPaTypical for steel
Poissons Ratio 0.29Calculated
Machinability 65 %annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.
Shear Modulus 80.0 GPaTypical for steels
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000228 ohm-cm
@Temperature 20.0 °C
 0.0000281 ohm-cm
@Temperature 100 °C
 0.0000352 ohm-cm
@Temperature 200 °C
 0.0000530 ohm-cm
@Temperature 400 °C
 0.0000785 ohm-cm
@Temperature 600 °C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 12.6 µm/m-°C
@Temperature 20.0 - 200 °C
 13.3 µm/m-°C
@Temperature 20.0 - 300 °C
 13.9 µm/m-°C
@Temperature 20.0 - 400 °C
 14.0 µm/m-°C
@Temperature 20.0 - 500 °C
 14.6 µm/m-°C
@Temperature 20.0 - 600 °C
 14.9 µm/m-°C
@Temperature 20.0 - 700 °C
Specific Heat Capacity 0.452 J/g-°C
@Temperature >=100 °C
 0.473 J/g-°C
@Temperature 20.0 - 200 °C
 0.519 J/g-°C
@Temperature 20.0 - 400 °C
Thermal Conductivity 31.3 W/m-K
@Temperature 600 °C
 37.7 W/m-K
@Temperature 400 °C
 43.4 W/m-K
@Temperature 200 °C
 44.6 W/m-K
@Temperature 100 °C
 
Component Elements PropertiesOriginal ValueComments
Carbon, C 0.37 - 0.44 %
Chromium, Cr 0.60 - 1.0 %
Iron, Fe 97.185 - 98.28 %As remainder
Manganese, Mn 0.60 - 1.0 %
Phosphorus, P <= 0.035 %
Silicon, Si 0.15 - 0.30 %
Sulfur, S <= 0.040 %

References for this datasheet.

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M514BH / 8097

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