TiAl6V4 | 3.7165 Material Datasheet - Properties - Materials Portal

TiAl6V4 | 3.7165 Material Datasheet

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Material Description

Material NumberMaterial Number (single)StandardRange of ApplicationStandard StatusCountrySuccessorRemarkApplication temperature [°C]
3.7165 (DIN 17862 : 1993-02) 3.7165 DIN 17862 : 1993-02DIN 17862 : 1993-02 replaced by DIN 17862 : 2012-03ReplacedGermanyTiAl6V4Chemical composition: DIN 17851 Because of its high quenching distortion during hardening and of the through-hardenability that is limited to approximately 25 mm, the hardenable titanium alloy TiAl6V4 with the material number 3.7165 (see also TiAl6V4, 3.7164, according to the Werkstoff-Leistungsblatt der Deutschen Luftfahrt WL3.7164) is generally used in the annealed condition, except for the manufacturing of small parts, connection components in particular. TiAl6V4 possesses a favourable ratio of strength and weight, a high fracture toughness in the annealed condition and thermal stability in the range from -200 to 400 °C. Corrosion resistance: Good corrosion resistance to strongly oxidizing acids, especially resistant to nitric acid, chromic acid, sulphurous acid, alkali lyes, ammonia, aqueous chlorides, salt brine, sea water, moist chlorine gas, acetic acid, malein acid, liquid hydrogen, limited resistance to sulphuric acid, hydrochloric acid, phosphoric acid, oxalic acid and formic acid. The material is not resistant to fluorine, dry chlorine gas and red fuming nitric acid. There exists resistance to stress cracking corrosion. Processing properties: Formability: limited (cold forming), good (hot forming) Weldability: good (tungsten inert-gas, plasma, electron beam and resistance welding) Application: Fields of application are the engine and airframe construction in the aeroplane industry, measurement devices and valves and fittings, laboratory centrifuges and the automobile sport.≤ 300

Mechanical Properties

Semi-finished ProductConditionCondition NumberStrength AbbrevationNominal Size [mm]Temperature [°C]Specimen DirectionTensile Strength [MPa]Yield Strength (0.2% offset) [MPa]Elongation A [%]Reduction of Area [%]Hardness HB | HBWSource
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Cross Reference

Material NameCountryStandard
T-A6VFranceAIR 9183
TA28Great BritainBS TA 28
TA56Great BritainBS TA 56
TA10Great BritainBS TA10
TA11Great BritainBS TA11
TA12Great BritainBS TA12
TA13Great BritainBS TA13
VT6sRussiaGOST 19807
Grade 5USAASTM B 265
Grade 5USAASTM B 337
Grade 5USAASTM B 338
Grade 5USAASTM B 348
Grade 5USAASTM B 363
Grade 5USAASTM B 381
TiAl6V4 (3.7165)GermanyDIN 17851

Producer/Supplier/Trade names

TradenameSupplier
Al6V4Chr. Höver & Sohn GmbH & Co KG, Lindlar
Coralloy Ti-6-4Chr. Höver & Sohn GmbH & Co. KG, Lindlar
ERGITAN 7165 TVStahlwerk Ergste Westig GmbH, Schwerte
LT 31VDM Metals GmbH, Werdohl
RMI G Al-4VZAPP AG, Ratingen
Ti Al6V4Enpar Sonderwerkstoffe GmbH, Gummersbach
TL64OTTO FUCHS KG, Meinerzhagen

Material Compliance

REAChRoHS
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Fracture Toughness

Temperature [°C]Yield Strength [MPa]Plane-Strain Fracture Toughness KIc [MPa*m^½]Threshold Stress Intensity Factor at Stress Corrosion Cracking KIscc [MPa*m^½]SourceRemark
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TiAl6V4 (3.7165; DIN 17862 : 1993-02)

Strain life

Temperature [°C]Cyclic fatigue strength coefficient [MPa]Cyclic fatigue strength exponentDuctility coefficient [Pa]Ductility exponentCyclic strength coefficient [MPa]Cyclic strain hardening exponentYoung's modulus [GPa]
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Linear-elastic

Temperature [°C]Young's modulus [GPa]Poisson's ratio
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Yield strength

Temperature [°C]0.2% Proof strength [MPa]
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Tensile strength

Temperature [°C]Tensile strength [MPa]
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Classification

WIAM MaterialSource description
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Designation

DesignationMaterial numberSource
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TiAl6V4 (tension/compression; fracture)

Alternating stress

Temperature [°C]Stress ratioAlternating stress [MPa]Cycles
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Classification

Load typeFailure criteriaSource description
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TiAl6V4 (6mm; flaw)

Strain life

Temperature [°C]Cyclic fatigue strength coefficient [MPa]Cyclic fatigue strength exponentDuctility coefficient [Pa]Ductility exponentCyclic strength coefficient [MPa]Cyclic strain hardening exponentYoung's modulus [GPa]
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Classification

Dimension [mm]Failure criteriaSource description
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TiAl6V4 (precipitation hardened (+P); 6.35mm; fracture)

Strain life

Temperature [°C]Cyclic fatigue strength coefficient [MPa]Cyclic fatigue strength exponentDuctility coefficient [Pa]Ductility exponentCyclic strength coefficient [MPa]Cyclic strain hardening exponentYoung's modulus [GPa]
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Classification

TreatmentDimension [mm]Failure criteriaSource description
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TiAl6V4 (precipitation hardened (+P); load drop)

Strain life

Temperature [°C]Cyclic fatigue strength coefficient [MPa]Cyclic fatigue strength exponentDuctility coefficient [Pa]Ductility exponentCyclic strength coefficient [MPa]Cyclic strain hardening exponentYoung's modulus [GPa]
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Classification

TreatmentFailure criteriaSource description
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TiAl6V4 (soft annealed (+A); rod; 6.000-80.000mm)

Yield strength

Temperature [°C]0.2% Proof strength [MPa]
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Tensile strength

Temperature [°C]Tensile strength [MPa]
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Classification

TreatmentSemi-finished productDimension [mm]Source description
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TiAl6V4 (soft annealed (+A); rod; 80.000-150.000mm)

Yield strength

Temperature [°C]0.2% Proof strength [MPa]
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Tensile strength

Temperature [°C]Tensile strength [MPa]
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Classification

TreatmentSemi-finished productDimension [mm]Source description
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TiAl6V4 (artificially aged; rod; 6.000-25.000mm)

Yield strength

Temperature [°C]0.2% Proof strength [MPa]
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Tensile strength

Temperature [°C]Tensile strength [MPa]
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Classification

TreatmentSemi-finished productDimension [mm]Source description
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TiAl6V4 (soft annealed (+A))

Yield strength

Temperature [°C]0.2% Proof strength [MPa]
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Tensile strength

Temperature [°C]Tensile strength [MPa]
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Classification

TreatmentSource description
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TiAl6V4 (artificially aged)

Tensile strength

Temperature [°C]Tensile strength [MPa]
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Classification

TreatmentSource description
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