AMS4972 Ti 811 Titanium Alloy Bars, Wire and Rings

  • Grade: Ti-8Al-1Mo-1V, Ti 811
  • Bar, Wire, Rings
  • Good Strength and Ductility
  • Lightweight
  • Corrosion Resistance
  • Weldability
  • Cost-Effective

Features

AMS4972 Ti 811 Titanium Alloy Bars, Wire, and Rings, Solution Heat Treated and Stabilized

Chemical Composition (wt.%)
Element Weight %
Aluminum (Al) 7.35-8.35%
Molybdenum (Mo) 0.75-1.25%
Vanadium (V) 0.75-1.25%
Iron (Fe) Max 0.30%
Oxygen (O) Max 0.12%
Carbon (C) Max 0.08%
Nitrogen (N) Max 0.05% (500 ppm)
Hydrogen (H) Max 0.0150% (150 ppm)
Yttrium Max 0.005% (50 ppm)
Other Elements, each Max 0.10%
Other Elements, total Max 0.40%
Titanium (Ti) Remainder
Mechanical Properties
Property Value
Tensile Strength (min) 130 ksi (896 MPa)
Yield Strength (0.2% offset, min) 120 ksi (827 MPa)
Elongation in 2 inches (min) 10%
Reduction of Area (min) 25%
Modulus of Elasticity 16.5 x 10^6 psi (113.8 GPa)
Beta Transus Temperature Approx. 1825°F (995°C)

Technical Specifications

Specification Value
Standard AMS4972 Ti 811 Titanium Alloy Bars, Wire, and Rings, Solution Heat Treated and Stabilized
Grade Ti-8Al-1Mo-1V, Ti 811
Melting Practice Alloy shall be multiple melted. The first melt shall be made by vacuum consumable electrode, nonconsumable electrode, electron beam cold hearth, or plasma arc cold hearth melting practice. The subsequent melt or melts shall be made using vacuum arc remelting (VAR) practice. Alloy additions are not permitted in the final melt cycle
Type Bars, Wire, Rings
Dimension Bar Dia: 0.25 to 12 inches (6.35 to 304.8 mm), Length up to 20 feet (6096 mm)
Wire Dia: 0.020 to 0.500 inches (0.51 to 12.7 mm)
Rings: OD: 250-1500mm, ID: 150-1400mm, Height: 20-500mm
Density 4.51g/cm³
Condition Bars: Hot finished with or without subsequent cold reduction, solution heat treated, stabilized, and descaled. Bar shall be processed to the final thickness/diameter by metallurgical working operations prior to any straightening, dimensional sizing, or surface finishing operations. Bar shall not be cut from plate. Round bars will be solution heat treated, stabilized, and ground or turned.
Wire: Cold drawn, solution heat treated, stabilized, and descaled.
Flash Welded Rings: Shall not be supplied unless specified or permitted on purchaser’s part drawing. When supplied, rings shall be manufactured in accordance with AMS7498.
Stock for Flash Welded Rings or Heading: As ordered by the flash welded ring or heading manufacturer.
Inspection Certificate EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection)
Tests Chemical Composition, Mechanical Properties
Key Features

Good Strength and Ductility: Ti-811 offers a good balance of strength and ductility, making it ideal for applications requiring structural integrity and formability.
Lightweight: It retains the lightweight characteristic of titanium alloys, contributing to weight savings in components.
Corrosion Resistance: Ti-811 exhibits good resistance to corrosion in various environments, including seawater, chloride solutions, and some acids.
Weldability: The alloy is readily weldable using standard titanium welding techniques.
Cost-Effective: Ti-811 is often more budget-friendly than higher-strength titanium alloys.

Packing

Packed in plywood boxes.

Applications in Bar Form:

Aircraft structural components: Used for brackets, fittings, and other structural parts where moderate strength and good formability are required.
Engine components: These are employed for shafts, fasteners, and other engine parts that need to balance strength and weight.
Process equipment components: Utilized for shafts, pump components, and other parts exposed to corrosive chemicals.
Shafts and fasteners: Employed in marine applications for shafts, fasteners, and other components requiring corrosion resistance in seawater environments.
Surgical instruments: These are used for specific instruments requiring biocompatibility and moderate strength.
Bicycle frames and components: Ti-811’s combination of strength, lightweight, and corrosion resistance makes it suitable for bicycle frames and parts.

Applications in Ring Form:

Engine components: These are forged and machined into compressor rings, spacers, and other engine parts that require good strength and fatigue resistance.
Bearings and seals: Used for bearing races, seal rings, and other components requiring wear and corrosion resistance.
Pipeline flanges and connectors: They are employed in pipeline flanges and connectors due to their strength and resistance to corrosion in harsh environments.

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