12 Years Factory Titanium alloy 6Al-4V STA UNS R56400 for Rwanda Factories

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HY Titanium 6-4 STA Material grades and equivalents

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

Introduction

HY Titanium 6-4 STA (Solution Treated and Aged) is a modified version of Ti 6Al-4V.  It is heat treated for high strength in sections under 4″ thick.  Ti-6Al-4V has excellent hardenability in sections up to 1″ thick with strengths as high as 165 ksi.

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 4 to 8 hours, air cool.

HY Titanium 6-4 STA 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 three but not for HF. Ti 6Al-4V STA resists attack by pure hydrocarbons, and most chlorinated and fluorinated hydrocarbons (provided water has not caused formation of small amounts of HCl and HF).

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 750°F
  • Excellent general corrosion resistance
  • High strength-to-weight ratio

Applications

  • Aerospace, turbine engine and airframe applications
  • Fasteners
  • Medical and dental implants
  • High performance Automotive

Physical Properties

Density: 0.160 lb/inch3
Melting Range: 2920 – 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, STA sheet & plate

Tensile Strength, ksi

0.2% Yield Strength, ksi

Elongation in 2″, %

170

160

10

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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