AMS 4919 Grade R54620

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Description

Titanium UNS R54620 is a two-phase, Alpha Beta Alloy. It is usually used in the annealed or solution treated and aged conditions. It’s a heat treatable, high strength alloy with lower toughness and ductility than Titanium Grade 5 (6Al-4V) and it’s difficult to weld. Cold forming of UNS R54620 is difficult because of its high strength. This grade can be welded by the inert gas shielded, fusion welding process but the heat effected area will have less ductility and toughness than the parent material. This grade is primarily used for airframe and jet engine parts, rocket engine cases and ordinance components.

Related Standards

Equivalent Materials

This material data has been provided by VSMPO,Matmatch,RMI Titanium Co.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyValueRelated StandardsShape

Density

4.54 g/cm³

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4.54 g/cm³

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Dimension

PropertyTemperatureValueRelated StandardsShapeComment

Diameter

7 mm

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Bar

115 mm

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Bar

130 mm

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Billet

350 mm

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Billet

Dimensions

15-65 mm diameter up to 6000 mm length °C

7-14.5 mm diameter up to 3000 mm length

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Length

3000 mm

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Billet

4500 mm

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Billet

6000 mm

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max

Mechanical

PropertyValueRelated StandardsShape

Elastic modulus

114 GPa

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118.0 GPa

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Elongation

13.0 %

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Hardness, Brinell

318.0

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Hardness, Rockwell C

34.0

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Hardness, Vickers

333.0

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Poisson's ratio

0.325 [-]

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Shear modulus

44.5 GPa

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Tensile strength

996.0 MPa

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1110.0 MPa

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Yield strength

827.0 MPa

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1050.0 MPa

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Thermal

PropertyTemperatureValueRelated StandardsShape

Coefficient of thermal expansion

20 °C

0.0000077 1/K

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Melting point

1704.0 °C

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1705.0 °C

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Specific heat capacity

460 J/(kg·K)

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Thermal conductivity

7 W/(m·K)

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7.7 W/(m·K)

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Electrical

PropertyValueRelated Standards

Electrical resistivity

1.85e-06 Ω·m

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Chemical properties

PropertyValueRelated StandardsShape

Aluminium

5.5 - 6.5 %

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Carbon

0.05

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0.08

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Hydrogen

0.01

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0.015

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Iron

0.25

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Molybdenum

1.75 - 2.25 %

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1.8 - 2.2 %

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Nitrogen

0.05

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Oxygen

0.12

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Silicon

0.06 - 0.1 %

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0.1 %

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Tin

1.75 - 2.25 %

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1.8 - 2.2 %

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Zirconium

3.5 - 4.5 %

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3.6 - 4.4 %

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