Titanium Grade 4, Annealed

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Titanium Grade 4, Annealed
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Unalloyed/Modified Titanium
Material Notes:	Information provided by Allvac and the references. Applications: Airframe components, cryogenic vessels, heat exchangers, CPI equipment, condenser tubing, pickling baskets. Sample was annealed 2 hr at 700°C. 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
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Physical Properties	Original Value	Comments

Density	4.51 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	265
Hardness, Knoop	296	Estimated from Brinell.
Hardness, Rockwell B	104
Hardness, Rockwell C	23	Estimated from Brinell.
Hardness, Vickers	280	Estimated from Brinell.
Tensile Strength	310 MPa @Temperature 316 °C
Tensile Strength, Ultimate	660 MPa
Tensile Strength, Yield	590 MPa
Elongation at Break	20 %
Tensile Modulus	105 GPa	Unspecified heat treatment
Modulus of Rigidity	38.6 GPa
Compressive Modulus	110 GPa	unspecified heat treatment
Notched Tensile Strength	900 MPa	K_t (stress concentration factor) = 3.0
Poissons Ratio	0.34
Shear Modulus	39.0 GPa
Bend Radius, Minimum	3.0 t @Thickness >=1.80 mm

Electrical Properties	Original Value	Comments
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

Thermal Properties	Original Value	Comments
Heat of Fusion	325 J/g	High Purity Ti.
CTE, linear	8.60 µm/m-°C @Temperature 20.0 - 93.0 °C
	9.20 µm/m-°C @Temperature 200 °C
	19.9 µm/m-°C @Temperature 20.0 °C	perpendicular
Specific Heat Capacity	0.540 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	16.9 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 Properties	Original Value	Comments
Emissivity (0-1)	0.30 @Temperature 710 °C	High purity Ti
Reflection Coefficient, Visible (0-1)	0.56	High purity Ti; visible light.

Component Elements Properties	Original Value	Comments
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	99 %

References for this datasheet.

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MTU041 / 14264

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