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Rulon Bearings

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Titanium Grade 4
Categories: Metal; Nonferrous Metal; Titanium Alloy; Unalloyed/Modified Titanium
Material Notes: Information provided by Allvac and the references.

Characteristics: Intermediate strength, good weldability, suitable for cold forming and hot forming

Applications: Airframe components, cryogenic vessels, heat exchangers, CPI equipment, condenser tubing, pickling baskets, fire walls, shrouds and tail pipes for jet engines.

Forms typically available: billet, bar, plate, sheet, strip, rod, wire, extrusions, tubing.

Titanium Grades 1,2,3,4,7,11,and 12 are all considered unalloyed and have similar mechanical properties.
Key Words: ASTM Grade 4: UNS R50700, CP titanium, C.P. titanium alloy
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 4.51 g/cc
 
Chemical PropertiesOriginal ValueComments
Thermal Neutron Cross Section 5.6 barns/atomNaturally occurring Ti
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 265annealed
Hardness, Knoop 215unwelded sheet
Hardness, Rockwell B 23unwelded sheet
 100annealed
Hardness, Rockwell C 23Estimated from Brinell.
Hardness, Vickers 280Estimated from Brinell.
Tensile Strength 185 MPa
@Temperature 538 °C
 220 MPa
@Temperature 427 °C
 275 MPa
@Temperature 316 °C
 345 MPa
@Temperature 204 °C
 495 MPa
@Temperature 93.0 °C
 630 MPa
@Temperature 21.0 °C
 760 MPa
@Temperature -54.0 °C
 1205 MPa
@Temperature -196 °C
 1275 MPa
@Temperature -253 °C
Tensile Strength, Yield 480 - 655 MPa
 110 MPa
@Temperature 538 °C		0.2% offset
 145 MPa
@Temperature 427 °C		0.2% offset
 165 MPa
@Temperature 316 °C		0.2% offset
 250 MPa
@Temperature 204 °C		0.2% offset
 415 MPa
@Temperature 93.0 °C		0.2% offset
 550 MPa
@Temperature 21.0 °C		0.2% offset
 580 MPa
@Temperature -54.0 °C		0.2% offset
Elongation at Break 15 %in 50 mm
 20 %
Reduction of Area 40 %
Tensile Modulus 105 GPa
 70.0 GPa
@Temperature 500 °C
 78.0 GPa
@Temperature 400 °C
 87.0 GPa
@Temperature 300 °C
 95.0 GPa
@Temperature 200 °C
 102 GPa
@Temperature 100 °C
Compressive Yield Strength 165 MPa
@Temperature 538 °C
 220 MPa
@Temperature 427 °C
 240 MPa
@Temperature 316 °C
 250 MPa
@Temperature 204 °C
 385 MPa
@Temperature 93.0 °C
 550 MPa
@Temperature 21.0 °C
Compressive Modulus 110 GPa
Ultimate Bearing Strength 215 MPa
@Temperature 538 °C
 345 MPa
@Temperature 427 °C
 415 MPa
@Temperature 316 °C
 530 MPa
@Temperature 204 °C
 700 MPa
@Temperature 93.0 °C
 830 MPa
@Temperature 21.0 °C
Bearing Yield Strength 170 MPa
@Temperature 538 °C		2% permanent set.
 270 MPa
@Temperature 427 °C		2% permanent set.
 295 MPa
@Temperature 316 °C		2% permanent set.
 390 MPa
@Temperature 204 °C		2% permanent set.
 560 MPa
@Temperature 93.0 °C		2% permanent set.
 695 MPa
@Temperature 21.0 °C		2% permanent set.
Poissons Ratio 0.37
Fatigue Strength 220 MPa
@# of Cycles 100000 ,
Temperature 315 °C
 220 MPa
@# of Cycles 1.00e+7 ,
Temperature 315 °C
 350 MPa
@# of Cycles 1.00e+7 ,
Temperature 20.0 °C
 400 MPa
@# of Cycles 100000 ,
Temperature 20.0 °C
 430 MPa
@# of Cycles 1.00e+7 ,
Temperature -40.0 °C
 510 MPa
@# of Cycles 100000 ,
Temperature -40.0 °C
 250 MPa
@# of Cycles 1.00e+7 		Kt (stress concentration factor) = 2.7
 290 MPa
@# of Cycles 100000 		Kt (stress concentration factor) = 2.7
 425 MPa
@# of Cycles 1.00e+7 		unnotched
 517 MPa
@# of Cycles 100000 		Unnotched
Fracture Toughness 99.0 - 140 MPa-m½for K(Q) annealed
Shear Modulus 40.0 GPa
 24.0 GPa
@Temperature 500 °C
 28.0 GPa
@Temperature 400 °C
 30.0 GPa
@Temperature 300 °C
 31.0 GPa
@Temperature 200 °C
 34.0 GPa
@Temperature 100 °C
 36.0 GPa
@Temperature 23.0 °C
Shear Strength 140 MPa
@Temperature 538 °C
 185 MPa
@Temperature 427 °C
 220 MPa
@Temperature 316 °C
 290 MPa
@Temperature 204 °C
 380 MPa
@Temperature 93.0 °C
 450 MPa
@Temperature 21.0 °C
Charpy Impact 20.0 J
@Temperature 0.000 °C		Notched
 35.0 J
@Temperature 100 °C		Notched
 55.0 J
@Temperature 200 °C		Notched
 75.0 J
@Temperature 300 °C		Notched
Coefficient of Friction, Dynamic 0.68Ti sliding on Ti; 300 m/min
 0.80Ti sliding on Ti; 40 m/min
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000600 ohm-cm
 0.0000950 ohm-cm
@Temperature 250 °C
 0.000130 ohm-cm
@Temperature 500 °C
 0.000155 ohm-cm
@Temperature 750 °C
Magnetic Permeability 1.00005at 1.6 kA/m
 
Thermal PropertiesOriginal ValueComments
Heat of Fusion 325 J/gHigh Purity Ti.
CTE, linear 8.60 µm/m-°C
@Temperature 0.000 - 100 °C
 9.20 µm/m-°C
@Temperature 0.000 - 315 °C		average
 9.70 µm/m-°C
@Temperature 0.000 - 540 °C		perpendicular to the c-axis
Specific Heat Capacity 0.530 J/g-°C
 0.560 J/g-°C
@Temperature 200 °C
 0.620 J/g-°C
@Temperature 400 °C
 0.690 J/g-°C
@Temperature 600 °C
Thermal Conductivity 17.2 W/m-K
 16.8 W/m-K
@Temperature 200 °C
 17.1 W/m-K
@Temperature 400 °C
 18.8 W/m-K
@Temperature 600 °C
 20.2 W/m-K
@Temperature 800 °C
Melting Point <= 1660 °C
Liquidus 1660 °C
Beta Transus 950 °C
 
Optical PropertiesOriginal ValueComments
Emissivity (0-1) 0.30
@Temperature 710 °C		High purity Ti
Reflection Coefficient, Visible (0-1) 0.56High purity Ti; visible light.
 
Component Elements PropertiesOriginal ValueComments
Carbon, C <= 0.10 %
Hydrogen, H <= 0.015 %
Iron, Fe <= 0.50 %
Nitrogen, N <= 0.050 %
Other, each <= 0.050 %
Other, total <= 0.30 %
Oxygen, O <= 0.40 %
Titanium, Ti >= 98.635 %
 
Descriptive Properties
Crystal Structurebccabove 950°C
 cphbelow 905°C

References for this datasheet.

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