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Rulon Bearings

AISI 5140 Steel, normalized 870°C (1600°F)
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 5000 Series Steel; Low Alloy Steel; Carbon Steel; Medium Carbon Steel
Key Words: B.S. 530 A 40, B.S. 530 H 40, B.S. 530 M 40, B.S. 2 S 117, DIN 1.7035, AFNOR 42 C 4 (Fr), UNI 40 Cr 4 (Ital.), UNI 41 Cr 4 KB (Ital.), JIS SCr 4 H (Japan.), UNS G51400, ASTM A322, ASTM A331, ASTM A505, ASTM A519, SAE J404, SAE J412, SAE J770
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Physical PropertiesMetricEnglishComments
Density 7.85 g/cc0.284 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 229229
Hardness, Knoop 252252Converted from Brinell
Hardness, Rockwell B 9696Converted from Brinell
Hardness, Rockwell C 1919Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
Hardness, Vickers 241241Converted from Brinell
Tensile Strength, Ultimate 793 MPa115000 psi
Tensile Strength, Yield 475 MPa68900 psi
Elongation at Break 22.7 %22.7 %in 50mm.
Modulus of Elasticity 205 GPa29700 ksiTypical for steel
Bulk Modulus 160 GPa23200 ksiTypical for steel
Poissons Ratio 0.290.29Calculated
Machinability 65 %65 %annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.
Shear Modulus 80.0 GPa11600 ksiTypical for steels
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity  0.0000228 ohm-cm
@Temperature 20.0 °C		0.0000228 ohm-cm
@Temperature 68.0 °F
 0.0000281 ohm-cm
@Temperature 100 °C		0.0000281 ohm-cm
@Temperature 212 °F
 0.0000352 ohm-cm
@Temperature 200 °C		0.0000352 ohm-cm
@Temperature 392 °F
 0.0000530 ohm-cm
@Temperature 400 °C		0.0000530 ohm-cm
@Temperature 752 °F
 0.0000785 ohm-cm
@Temperature 600 °C		0.0000785 ohm-cm
@Temperature 1110 °F
 
Thermal PropertiesMetricEnglishComments
CTE, linear  12.6 µm/m-°C
@Temperature 20.0 - 200 °C		7.00 µin/in-°F
@Temperature 68.0 - 392 °F
 13.3 µm/m-°C
@Temperature 20.0 - 300 °C		7.39 µin/in-°F
@Temperature 68.0 - 572 °F
 13.9 µm/m-°C
@Temperature 20.0 - 400 °C		7.72 µin/in-°F
@Temperature 68.0 - 752 °F
 14.0 µm/m-°C
@Temperature 20.0 - 500 °C		7.78 µin/in-°F
@Temperature 68.0 - 932 °F
 14.6 µm/m-°C
@Temperature 20.0 - 600 °C		8.11 µin/in-°F
@Temperature 68.0 - 1110 °F
 14.9 µm/m-°C
@Temperature 20.0 - 700 °C		8.28 µin/in-°F
@Temperature 68.0 - 1290 °F
Specific Heat Capacity  0.452 J/g-°C
@Temperature >=100 °C		0.108 BTU/lb-°F
@Temperature >=212 °F
 0.473 J/g-°C
@Temperature 20.0 - 200 °C		0.113 BTU/lb-°F
@Temperature 68.0 - 392 °F
 0.519 J/g-°C
@Temperature 20.0 - 400 °C		0.124 BTU/lb-°F
@Temperature 68.0 - 752 °F
Thermal Conductivity  31.3 W/m-K
@Temperature 600 °C		217 BTU-in/hr-ft²-°F
@Temperature 1110 °F
 37.7 W/m-K
@Temperature 400 °C		262 BTU-in/hr-ft²-°F
@Temperature 752 °F
 43.4 W/m-K
@Temperature 200 °C		301 BTU-in/hr-ft²-°F
@Temperature 392 °F
 44.6 W/m-K
@Temperature 100 °C		310 BTU-in/hr-ft²-°F
@Temperature 212 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.38 - 0.43 %0.38 - 0.43 %
Chromium, Cr 0.70 - 0.90 %0.70 - 0.90 %
Iron, Fe 97.395 - 98.07 %97.395 - 98.07 %As remainder
Manganese, Mn 0.70 - 0.90 %0.70 - 0.90 %
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.

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M514AX / 8088

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