Features

AMS4921 CP Grade 4 Titanium Bars, Wire, Forgings, and Rings Commercially Pure 70 Ksi (483 MPa) Yield Strength

Chemical Composition (wt.%)

Element	Composition (%)
Carbon (C)	0.08% max
Hydrogen (H)	0.0125% max (125 ppm)
Iron (Fe)	0.50% max
Nitrogen (N)	0.05% max (500 ppm)
Oxygen (O)	0.40% max
Other Elements, each	0.10% max
Other Elements, total	0.30% max
Titanium (Ti)	Remainder

The mechanical properties of AMS4921 CP Grade 4 pure titanium:

Property	Value
Tensile Strength	80 ksi (550 MPa) minimum
Yield Strength (0.2% Offset)	70 ksi (483 MPa) minimum
Elongation (in 2 inches or 50mm)	10 – 15%
Reduction of Area	25 – 30%

Technical Specifications

Specification	Value
Standard	AMS4921 CP Grade 4 Titanium Bars, Wire, Forgings, and Rings Commercially Pure 70 Ksi (483 MPa) Yield Strength
Grade	Commercially pure Grade 4, CP Grade 4
Type	Bar, Wire, Forgings, 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)
	Block: Width: 2 – 24 inches (50 -610mm) x Height: 2 – 24 inches (50-610mm) x Length: 2 – 20 feet (610-6100mm)
	Rings: OD: 250-1500mm, ID: 150-1400mm, Height: 20-500mm
Density	4.51g/cm³
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 properties

High Strength-to-ratio: Offers strength comparable to steel at a significantly lower weight.
Excellent corrosion resistance: Highly resistant to corrosive environments, including saltwater and many chemicals.
Good biocompatibility: Suitable for medical implants due to its inertness within the human body.
High fatigue strength: Withstands cyclic loading and stress without failure.
Good weldability: Can be readily welded using appropriate techniques.

Packing

Packed in plywood boxes.

Applications

Aircraft structural components: Due to its high strength-to-weight ratio and excellent corrosion resistance, AMS 4921 is commonly used for structural parts like airframes, landing gear components, and engine mounts.
Fasteners and bolts: The material’s strength and resistance to fatigue make it ideal for critical fasteners in aircraft assembly.
Hydraulic tubing: CP Grade 4 titanium’s corrosion resistance and ability to withstand high pressures make it suitable for hydraulic lines in aircraft systems.
Implants: The biocompatibility and corrosion resistance of AMS 4921 make it well-suited for medical implants like hip and knee replacements, bone screws, and plates.
Surgical instruments: The material’s strength, durability, and resistance to sterilization make it ideal for surgical instruments.
Boat hulls and fittings: AMS 4921’s resistance to saltwater corrosion makes it ideal for marine applications such as boat hulls, propeller shafts, and rigging components.
Offshore oil and gas equipment: Its strength and corrosion resistance are valuable for components used in offshore drilling and production platforms.
Reactor vessels and piping: The material’s resistance to various chemicals and high temperatures makes it suitable for equipment used in chemical processing plants.
Heat exchangers: AMS 4921’s thermal conductivity and corrosion resistance are valuable for heat exchanger applications.

Other Applications

Automotive components: Used in high-performance vehicles for their strength and weight-saving advantages.
Sporting goods: Because of its high strength and low weight, it is used in bicycle frames, golf clubs, and other sporting equipment.
Architectural applications: Chosen for its aesthetic appeal and corrosion resistance in decorative elements and structural components.