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Ensinger PEI

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AISI 8630 Steel, oil quenched 845°C (1550°F), 455°C (850°F) temper
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 8000 Series Steel; Low Alloy Steel; Carbon Steel; Medium Carbon Steel
Material Notes:

Key Words: ASTM A505, ASTM A519, MIL-SPEC MIL-S-16974, SAE J404, SAE J412, SAE J770, DIN 1.6545, UNI 30 NiCrMo 2 KB, UNS G86300, AMS 6280, AMS 6281, AMS 6530, AMS 6550, ASTM A322, ASTM A331
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Physical PropertiesOriginal ValueComments
Density 7.85 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Knoop 318Converted from Vickers hardness.
 349
@Temperature -78.0 °C		Converted from Vickers hardness
 395
@Temperature -195 °C		Converted from Vickers hardness
Hardness, Rockwell C 30Converted from Vickers hardness.
 34
@Temperature -78.0 °C		Converted from Vickers hardness
 39
@Temperature -195 °C		Converted from Vickers hardness
Hardness, Vickers 302
 332
@Temperature -78.0 °C
 376
@Temperature -195 °C
Tensile Strength, Ultimate 979 MPa
 1060 MPa
@Temperature -78.0 °C
 1325 MPa
@Temperature -195 °C
Tensile Strength, Yield 841 MPa
@Strain 0.2 %
 876 MPa
@Strain 0.2 %,
Temperature -78.0 °C
 1145 MPa
@Strain 0.2 %,
Temperature -195 °C
Elongation at Break 16 %in 50 mm
 12 %
@Temperature -195 °C		in 50 mm
 17 %
@Temperature -78.0 °C		in 50 mm
Modulus of Elasticity 205 GPa
 214 GPa
@Temperature -78.0 °C
 223 GPa
@Temperature -195 °C
Bulk Modulus 160 GPaTypical for steel
Poissons Ratio 0.30Calculated
Fatigue Strength 205 MPaNotched Limit
 485 MPaUnnotched Limit
 240 MPa
@Temperature -195 °C		Notched Limit
 550 MPa
@Temperature -78.0 °C		Unnotched Limit
 862 MPa
@Temperature -195 °C		Unnotched Limit
Machinability 70 %annealed and cold drawn. Based on AISI 1212 steel = 100%.
Shear Modulus 79.0 GPaEstimated from elastic modulus
 82.0 GPa
@Temperature -78.0 °C		Estimated from elastic modulus
 85.8 GPa
@Temperature -195 °C		Estimated from elastic modulus
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000234 ohm-cmTypical steel
 
Thermal PropertiesOriginal ValueComments
CTE, linear 11.2 µm/m-°C
@Temperature 21.0 - 100 °C
 12.2 µm/m-°C
@Temperature 21.0 - 200 °C
 14.0 µm/m-°C
@Temperature 21.0 - 500 °C
Specific Heat Capacity 0.475 J/g-°CTypical steel
Thermal Conductivity 46.6 W/m-KTypical steel
 
Component Elements PropertiesOriginal ValueComments
Carbon, C 0.28 - 0.33 %
Chromium, Cr 0.40 - 0.60 %
Iron, Fe 96.745 - 98.02 %As remainder
Manganese, Mn 0.65 - 0.95 %
Molybdenum, Mo 0.15 - 0.25 %
Nickel, Ni 0.35 - 0.75 %
Phosphorus, P <= 0.035 %
Silicon, Si 0.15 - 0.30 %
Sulfur, S <= 0.040 %

References for this datasheet.

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M863AD / 8384

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