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Rulon Bearings

AISI 1137 Steel, water quenched from 845°C (1550°F), 595°C (1100°F) temper, round
Categories: Metal; Ferrous Metal; Carbon Steel; AISI 1000 Series Steel; Medium Carbon Steel
Material Notes: Medium strength and good machinability. Applications include spline shafts, and studs, bolts, and nuts with machined threads. Post water quenched hardness: 57 HRC surface, 53 HRC half-radius, 50 HRC center.
Key Words: UNS G11370, AMS 5024 C, ASTM A29, ASTM A108, ASTM A311, FED QQ-S-637 (C1137), SAE J403, SAE J412, SAE J414
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Physical PropertiesMetricEnglishComments
Density 7.87 g/cc0.284 lb/in³Typical for steel.
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell  201
@Diameter 102 mm		201
@Diameter 4.00 in
 217
@Diameter 50.8 mm		217
@Diameter 2.00 in
 223
@Diameter 25.4 mm		223
@Diameter 1.00 in
 229
@Diameter 12.7 mm		229
@Diameter 0.500 in
Hardness, Knoop  223
@Diameter 102 mm		223
@Diameter 4.00 in		Converted from Brinell
 240
@Diameter 50.8 mm		240
@Diameter 2.00 in		Converted from Brinell
 246
@Diameter 25.4 mm		246
@Diameter 1.00 in		Converted from Brinell
 252
@Diameter 12.7 mm		252
@Diameter 0.500 in		Converted from Brinell
Hardness, Rockwell B  93
@Diameter 102 mm		93
@Diameter 4.00 in		Converted from Brinell
 95
@Diameter 50.8 mm		95
@Diameter 2.00 in		Converted from Brinell
 96
@Diameter 12.7 mm		96
@Diameter 0.500 in		Converted from Brinell
 96
@Diameter 25.4 mm		96
@Diameter 1.00 in		Converted from Brinell
Hardness, Rockwell C  13
@Diameter 102 mm		13
@Diameter 4.00 in		Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
 17
@Diameter 50.8 mm		17
@Diameter 2.00 in		Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
 18
@Diameter 25.4 mm		18
@Diameter 1.00 in		Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
 19
@Diameter 12.7 mm		19
@Diameter 0.500 in		Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
Hardness, Vickers  211
@Diameter 102 mm		211
@Diameter 4.00 in		Converted from Brinell
 228
@Diameter 50.8 mm		228
@Diameter 2.00 in		Converted from Brinell
 235
@Diameter 25.4 mm		235
@Diameter 1.00 in		Converted from Brinell
 241
@Diameter 12.7 mm		241
@Diameter 0.500 in		Converted from Brinell
Tensile Strength, Ultimate  675 MPa
@Diameter 102 mm		97900 psi
@Diameter 4.00 in
 724 MPa
@Diameter 50.8 mm		105000 psi
@Diameter 2.00 in
 745 MPa
@Diameter 25.4 mm		108000 psi
@Diameter 1.00 in
 772 MPa
@Diameter 12.7 mm		112000 psi
@Diameter 0.500 in
Tensile Strength, Yield  420 MPa
@Diameter 102 mm		60900 psi
@Diameter 4.00 in
 525 MPa
@Diameter 50.8 mm		76100 psi
@Diameter 2.00 in
 605 MPa
@Diameter 25.4 mm		87700 psi
@Diameter 1.00 in
 655 MPa
@Diameter 12.7 mm		95000 psi
@Diameter 0.500 in
Elongation at Break  21 %
@Diameter 25.4 mm		21 %
@Diameter 1.00 in		in 50 mm
 21.4 %
@Diameter 12.7 mm		21.4 %
@Diameter 0.500 in		in 50 mm
 22 %
@Diameter 50.8 mm		22 %
@Diameter 2.00 in		in 50 mm
 23.5 %
@Diameter 102 mm		23.5 %
@Diameter 4.00 in		in 50 mm
Reduction of Area  57.6 %
@Diameter 12.7 mm		57.6 %
@Diameter 0.500 in
 59.2 %
@Diameter 25.4 mm		59.2 %
@Diameter 1.00 in
 60.9 %
@Diameter 102 mm		60.9 %
@Diameter 4.00 in
 61.7 %
@Diameter 50.8 mm		61.7 %
@Diameter 2.00 in
Modulus of Elasticity 200 GPa29000 ksiTypical for steel
Bulk Modulus 160 GPa23200 ksiTypical for steel.
Poissons Ratio 0.290.29Typical For Steel
Shear Modulus 80.0 GPa11600 ksiTypical for steel.
Izod Impact 50.0 J36.9 ft-lbannealed at 790°C (1450°F)
 64.0 J47.2 ft-lbnormalized at 900°C (1650°F)
 83.0 J61.2 ft-lbas rolled
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000170 ohm-cm
@Temperature 20.0 °C		0.0000170 ohm-cm
@Temperature 68.0 °F		condition of specimen unknown
 
Thermal PropertiesMetricEnglishComments
CTE, linear  11.5 µm/m-°C
@Temperature 20.0 °C		6.39 µin/in-°F
@Temperature 68.0 °F		Typical steel
 12.2 µm/m-°C
@Temperature 0.000 - 300 °C		6.78 µin/in-°F
@Temperature 32.0 - 572 °F		Typical for steel
 13.9 µm/m-°C
@Temperature 0.000 - 500 °C		7.72 µin/in-°F
@Temperature 32.0 - 932 °F		Typical for steel
Specific Heat Capacity 0.472 J/g-°C0.113 BTU/lb-°FTypical steel
Thermal Conductivity 51.9 W/m-K360 BTU-in/hr-ft²-°FTypical steel
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.32 - 0.39 %0.32 - 0.39 %
Iron, Fe 97.79 - 98.25 %97.79 - 98.25 %As remainder
Manganese, Mn 1.35 - 1.65 %1.35 - 1.65 %
Phosphorus, P <= 0.040 %<= 0.040 %
Sulfur, S 0.080 - 0.13 %0.080 - 0.13 %

References for this datasheet.

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