Factory Cheap Titanium alloy 6Al-4V UNS R56400 for Greece Importers

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HY Titanium 6-4 Material grades and equivalents

6-4 Titanium, 6-4, Ti 6-4, UNS R56400

Introduction

HY Titanium 6-4 is the most widely used of all the alpha-beta titanium alloys. It is typically used in the annealed condition, at service temperatures through 750°F. However it may be heat treated for high strength in sections under 4″ thick. Hardenability is limited and sections over one inch may not develop full properties. HY Titanium 6-4 is welded with matching or with ELI filler wire.

Mill anneal: 1300-1450°F 2 hours, air cool. Recrystallization anneal bar for better ductility and fatigue strength, 1750°F 2 hours, furnace cool.
For maximum fracture toughness and SCC resistance: Beta anneal 1950°F 1-2 hours, water quench. Then age 1150-1300°F 2 to 4 hours, air cool.
For maximum strength: solution-treated and aged (STA) condition is: For sheet, 1675-1725°F 5 to 25 minutes, water quench. Age 975°F 4 to 6 hours, air cool. For bars and forgings, 1675-1725°F 1 hour, water quench. Age 975-1025°F 3 hours, air cool.
For increased fracture toughness, but lower tensile strength: precipitation treat (overage) 1150-1250°F 4 hours, air cool. Stress relief annealing is commonly 1000-1200°F 1 to 4 hours, air cool.

HY Titanium 6-4 is resistant to general corrosion but may be quickly attacked by environments that cause breakdown of the protective oxide. These include hydrofluoric (HF), hydrochloric (HCl), sulfuric and phosphoric acids. Inhibitors may help for the last four but not for HF. HY Titanium 6-4 resists attack by pure hydrocarbons, and most chlorinated and fluorinated hydrocarbons (provided water has not caused formation of small amounts of HCl and HF).

HY Titanium 6-4 is susceptible to chloride stress corrosion cracking (SCC), although being among the better of the titanium alloys in this regard. For marine environments silver plated bolts are not used, as silver bonds easily with chlorine in this environment. HY Titanium 6-4 is also susceptible to SCC in environments such as methyl alcohol, red fuming HNO3, and N2O4. In the case of red fuming nitric acid, the problem is limited to environments containing less than 1.5% water, or more than 6% NO2. Failure in N2O4 has occurred when oxygen and chlorides were present as impurities.

Chemistry Composition

 

Al

V

C

N

O

H

Fe

Y

Others,
Each

Others,
Total

Ti

MIN

5.5

3.5

MAX

6.75

4.5

0.08

0.05

0.2

0.0125

0.3

0.005

0.1

0.4

Balance

Features

  • High strength to 600°F
  • Excellent general corrosion resistance
  • High strength-to-weight ratio

Applications

  • Turbine blades, discs and rings
  • Aircraft structural components
  • Weapons structural components
  • Fasteners
  • Medical and dental implants
  • Hand tools
  • Sporting equipment
  • Chemical process equipment

Physical Properties

Density: 0.160 lb/inch3
Melting Range: 2929 – 3020°F
Beta Transus: 1825± 25°F

Temperature, °F

70

200

400

600

Coefficient of Thermal Expansion, in/in°F x 10-6

-

5.3

5.4

5.5

Thermal Conductivity,
Btu • Ft/Ft² • Hr°F STA

4.0

4.3

5.2

6.1

Modulus of Elasticity,
psi X 10
STA

16.7

16.0

15.0

14.0

Mechanical Properties

Specified, AMS 4911, annealed sheet & plate

 

Anneal 1300°F, Air Cool

Anneal 1300°F, Solution anneal 1750°F , Age 1000°F

Ultimate Tensile Strength, ksi

138-155

150-172

0.2% Yield Strength, ksi

128-147

137-156

Elongation, %

15-20

15-17

Reduction of Area, %

38-51

41-46

Typical Tensile Strength and Fracture Toughness, Various Heat Treatments for Flat-rolled Products (MCIC-HB-02 1985 reprint)

 

0.2% Yield Strength, ksi

Fracture Toughness K1C, ksi √in

Annealed
(Continuously Rolled Sheet)

132
142 (transversea)

128
140 (transversea)

Beta Annealed (plate)

131

134

Beta STA 1250°F b

128

150

Beta STA 1000°F b

143

120

STA 1250°Fc

137

105

STA 1000°Fc

159

80

(a) Directional variations,
(b) Beta heat treated followed by solution treating and overaging 1250˚F, or aging 1000˚F
(c) Solution treating and overaging 1250˚F, or aging 1000˚F

Regular shape for all kinds of alloys
Form Specification Supply Form Others
Sheet Thickness:0.40-4.75mm,General Width:1000、1219、1500mm Whole Coil or piece of it Cold Annealed,Surface 2B、2E
Plate Thickness:4.76-60mm,Width:1500、2000、2500mm,Length:3000、6000、8000、8500mm(Under 10mm plate can be coiled) Whole Coil or piece of it Single hot rolling,Solid solution annealed state,Surface 1D
Belt Thickness:0.10-3.0mm,Width:50-500mm Whole Coil or Specified size Cold Annealed,Surface 2B、2E
Bar & Rod Rolled barΦ5-45mm,Length≤1500mm Polished Bar(circle、Square) Solution annealing,descaling
Forged barΦ26-245mm,Length≤4000mm
Weld tube Outer diameterΦ4.76-135mm,Wall Thickness0.25-4.00mm,Length:≤35000 mm Base on your requirement
Seamless Tube Outer diameterΦ3-114mm,Wall Thickness0.2-4.5mm Base on your requirement
Wire Outer diameterΦ0.1-13mm Base on your requirement Ni & Ni alloy, Ti & Ti alloy
Forged piece discs,rings,squares,blocks,slabs Base on your requirement Steel, Alloy
Flangs All kinds of Flangs Base on your requirement Steel, Alloy
Welding Material Coil wire Φ0.025mm-1.6mm Base on your requirement Certificate of Origin:America, Sweden, Britain, Germany, Austria, Italy, France.
Straight WireΦ1.6mm-4.0mm
Welding rodΦ1.2mm-4.0mm
Tube Elbow, three links, four links, different diameter size Base on your requirement Ni & Ni alloy, Ti & Ti alloy
Explosive bonded laminate Raw Sheet Thickness≥2mm Base on your requirement Ni & Ni alloy, Ti & Ti alloy

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