Titanium Gr5

Titanium Gr5

Aluminum Al - 6.0
Vanadium (V) - 4.0
Titanium (Ti) - 89.415 Balance
Other

Key

Nickel
Copper
Chromium
Aluminum
Molybdenum
Iron
Titanium
Manganese
Cobalt
Other
  • Aluminum Al 6.0
  • Iron (Fe) 0.40 Max
  • Carbon (C) 0.10 Max
  • Vanadium (V) 4.0
  • Titanium (Ti) 89.415
  • Nitrogen (N) 0.05
  • Hydrogen (H) 0.015 Max
  • Oxygen (O) 0.020 Max

UNS R56400

Titanium Grade 5, also known as Ti-6Al-4V, is a popular titanium alloy appreciated for its excellent strength-to-weight ratio, corrosion resistance, and biocompatibility. Composed of titanium, aluminum, and vanadium, Grade 5 titanium exhibits superb mechanical properties, making it suitable for a wide range of applications across various industries.

Its combination of strength and low density makes it particularly well-suited for aerospace components, such as aircraft structural components, engine parts, and aircraft frames. Additionally, Grade 5 titanium finds applications in marine environments due to its resistance to corrosion in seawater. It is also commonly used in medical implants, sports equipment, and automotive components where lightweight, high-strength materials are required.

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Summary

  • Environment:
    Mildly Corrosive: Salt Water & Mild Acids
  • Temperature Limit:
    850 °F / 454 °C
  • Ultimate Tensile (Typical):
    148 ksi / 1020 mpa

Specifications & Technical Data

If your question isn’t answered below, download the complete technical data sheet here.

Specifications

  • Plate, Sheet & Strip: ASTM B265
  • Rod & Bar: ASTM B348

Physical Properties

Specific Gravity
0.160

 

Modulus of Elasticity
Modulus of Elasticity (E) 15.2 x 103 ksi
Beta Transus 1800 to 1850 °F
Liquidus Temperature 2976 to 3046 °F
Solidus Temperature 2900 to 2940 °F

 

Electrical Resistivity
Electrical Resistivity
-418°F 902.5 ohm-cir-mil/ft
73°F 1053 ohm-cir-mil/ft
986°F 1143 ohm-cir-mil/ft

 

Thermal Conductivity

Thermal Expansion of Titanium Gr 5

Thermal Expansion

Thermal Expansion of Titanium Grade 5

Mechanical Properties

Typical Room-Temperature Strengths
Ultimate Bearing Strength  1380-2070 MPa (200-300 ksi)
Compressive Yield Strength  825-895 MPa (120-130 ksi)
Ultimate Shear Strength  480-690 MPa (70-100 ksi)

 

Room Temperature Mechanical Properties
Ultimate Tensile Strength
Yield Strength %EI
%RA
MPa ksi MPa ksi
Minimum Specified Tensile Properties
Annealed 896 130 827 120 10 25
STA (depending on diameter) 1035 – 1135 150 – 165 965 – 1070 140 – 155 10 20
Typical Tensile Properties
Annealed 965 – 1090 140 – 158 875 – 995 127 – 144 16 46
STA (depending on diameter) 1100 – 1220 160 – 177 1035 – 1130 150 – 164 15 52

 

Fatigue Limit Ranges for Ti Grade 5
Fatigue Limits (Axial Fatigue, R = 0.06 to 0.1)
Smooth 400-700 MPa (60-100 ksi)
Notched (KT = 3) 140-270 MPa (20-40 ksi)

 

Specific Strength
Material Ultimate Tensile Strength
Specific Strength
MPa ksi m x 103 in x 106
Ti 6AI-4V STA 1172 170 27.0 1063
Ti 6AI-4V Annealed 924 134 21.3 838
4130 Steel 1379 200 17.9 707
7075-T6 Aluminum 538 78 19.6 772
2024 T3 Aluminum 441 64 16.1 634
Inconel 718 1276 185 15.3 603

Corrosion Resistance

Sulfuric Acid Moderate
Sodium Hydroxide Moderate
Sea Water Excellent
Humidity Excellent
Acetic Acid Excellent
Salt Spray (NaCl) Excellent
General Corrosion Rates in Various Media
Medium Concentration Temperature Corrosion Rate
% °C °F mm/yr mils/yr
Sea Water n/a room nil nil
Hydrochloric Acid 2 37.8 100 nil – 0.03 nil – 1.2
Hydrochloric Acid 10 37.8 100 0.508 – 1.02 20 – 40
Hydrochloric Acid + 5% CrO2 10 65.6 150 nil – 0.005 nil – 0.2
Hydrochloric Acid vapors 37.8 100 8.33 – 1.04 328 – 408
Nitric Acid 65 boiling 0.076 – 0.13 3 – 5
Sulfuric Acid 2 37.8 100 0.396 – 0.549 15.6 – 21.6
Sodium Hydroxide 25 boiling 0.046 – 0.051 1.8 – 2.0

Heat Treatment

Mill Anneal 705 – 790°C (1300 – 1450°F) 1 – 4 hrs. – air cool (Or equivalent)
Solution Treat + Age (STA) 940 – 970°C (1725 – 1775°F) 10 min. – water quench (or equiv.) + 480 – 595°C (900 – 1100°F) 2 – 8 hrs. – air cool (Or equivalent)
Stress Relief 480 – 650°C (900 – 1200°F) 1 – 4 hrs. – air cool (Or equivalent)
Beta Anneal 1035°C (1900°F) 30 min. – air cool + 730°C (1350°F) 2 hrs. – air cool

 

Typical Minimum Stock Removal Requirements for Ti Alloys (After Thermal Exposure in Air)
Heat Treatment Thermal Cycle Removal Required
Mill Anneal 760°C (1400°F) 2 hrs. 0.038 mm (0.0015 in.)
Solution Treat + Age (STA) 954°C (1750°F) 10 min. + 480°C (900°F) 4 hrs. 0.107 mm (0.0042 in.)
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Nickel Systems provides high quality exotic grade materials that hold up in the toughest, most severe heat and corrosive environments. With our large inventory of specialty fasteners in stock, we are always ready to answer the call to serve the most challenging applications.

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