Daxun is an experienced Ti 6Al 4V-Grade 5 Titanium Tube manufacturer

Ti-6Al-4V- Grade 5 Titanium tube

• Titanium Alloy-(UNS R56400)

INTRODUCTION

• DAXUN Ti-6Al-4V, Grade 5 Alloy Tube (UNS R56400) is the most popular titanium alloy. It is a duplex alpha+beta titanium alloy that uses aluminium as an alpha stabiliser and vanadium as a beta stabiliser. This high-strength alloy can be employed at cryogenic temperatures of around 800°F (427°C). ATI Ti-6Al-4V, Grade 5 alloy is used in annealing, solution treatment, and ageing. Compressor blades, discs, and rings for jet engines; fuselage and space capsule components; pressure containers; rocket engine cases; helicopter rotor hubs; fasteners; and crucial forgings with a high strength-to-weight ratio.
• The alloy is initially melted using vacuum arc (VAR), electron beam (EB) or plasma arc hearth melting (PAM). Remelting is achieved in one or two vacuum arc steps.

仕様

•ASTE B338 – Tubes Titanium tubes standard heat treatable
• AMS 4928 – Forgings and forging stock (annealed)
• AMS 4965 – Forgings (solution treated and aged)
• AMS 4967 – Forgings (annealed, heat treatable)

物性

• Melting Range: 2,800-3,000°F (1,538 – 1,649°C)
• Density: 0.160 lbs/cu. in.; 4.47 gm/cc
• Beta Transus Temperature: 1830°F (± 25°); 999°C (± 14°)

HEAT TREATMENT

• Annealing at 1,700-1,900°F (927 – 1,038°C) is done where high hardness, tensile and fatigue strength are desired.
• DAXUN 6-4™, Grade 5 Alloy can be heat treated in several ways.
• 1. Anneal: 1,275 -1,400°F; (691 – 760°C), ½ to 2 hours, air or furnace cool
• 2. Stress Relief Anneal: 1,000 -1,200°F; (538 – 649°C), 1 to 8 hours, air or furnace cool
• 3. Solution Heat Treatment: 1,675 -1,750°F; (913 – 954°C), 1 hour, water quench
• 4. Aging Treatment: 975 -1,025°F; (524 – 552°C), 4 to 8 hours – air cool
• The very best of properties In the solution treated and aged condition, small cross sections are obtained that are rapidly
  quenched. Larger sections sizes and/or a quench delay may cause properties to be lower than the optimum values.

HARDNESS

Typical hardness in the annealed condition is Rockwell C 30-34, and about Rockwell C 35-39 in the solution and aged condition.

FORGEABILITY/ FORMABILITY

• DAXUN Ti-6Al-4V, Grade 5 alloy tubes are forged at 1,750°F (954°C), with an end forging temperature of 1,450°F (788°C). For optimal results, a reduction of at least 35% is recommended.
• DAXUN Ti-6Al-4V, Grade 5 alloy is difficult to form at room temperature, even when annealed. As a result, harsh forming operations like bending or stretching can be conducted on annealed material at temperatures as high as 1,200°F (649°C) without altering its mechanical qualities. Creep forming can be used for hot sizing or forming at temperatures ranging from 1,000 to 1,200°F (538 to 649°C).

MACHINABILITY

• DAXUN  Ti-6Al-4V, Grade 5 alloy can be machined using practices for austenitic stainless steels with slow speeds, heavy feeds, rigid
  tooling, and large amounts of non-chlorinated cutting fluid.

WELDABILITY

• DAXUN Ti-6Al-4V Grade 5 Alloy Titanium Tube is easily welded in the annealed or solution and partially aged form, with ageing.
• done during the post-weld heat treatment. Precautions must be made to avoid contamination by oxygen, nitrogen, and hydrogen. Fusion welding can be performed in an inert gas-filled chamber or with an inert gas tail shield applied to the molten metal and nearby hot zone. Spot welding, seam welding, and flash welding can all be performed without the use of a protective environment.

SPECIAL PRECAUTIONS

• DAXUN Ti-6Al-4V, Grade 5 alloy may be contaminated with hydrogen as a result of incorrect pickling, as well as the absorption of oxygen, nitrogen, and carbon during forging, heat treatment, brazing, and so on. This contamination may reduce ductility, compromising notch sensitivity and forming properties.