AMS Specification 6AL-4V Titanium Alloy

AMS 4935

6AL-4V Titanium Alloy – Extruded Bar & Shapes

Titanium Alloy, Alpha-Beta, Extruded Bar & Shapes – Ti-6Al-4V (Balance Ti, 6% Aluminum, 4% Vanadium)

AS9100D / ISO 9001

Mill Test Reports

2–4 Week Delivery

877-237-6822

Quick Specification Facts

Spec Number AMS 4935 (AMS4935)

Material 6AL-4V Titanium Alloy

Spec Type AMS (Aerospace Material Specification)

Category Titanium Alloys / 6AL-4V Alpha-Beta

Composition Balance Ti, 6% Al, 4% V (Ti-6Al-4V)

Condition Annealed

Product Forms Extruded Bar & Shapes

Melt Practice Vacuum Arc Remelted (VAR) or Electron Beam Melted

Certification AS9100D / ISO 9001 with full MTR traceability

Specification Overview

AMS 4935 (also referenced as AMS4935) covers Ti-6Al-4V, an alpha-beta titanium alloy, in the form of extruded bars and shapes. This specification is issued by SAE International and is widely used in aerospace, defense, and high-performance industrial applications requiring an excellent combination of high strength-to-weight ratio, corrosion resistance, and good fatigue properties. The nominal composition of Ti-6Al-4V—balance titanium with 6% aluminum and 4% vanadium—provides outstanding mechanical properties across a broad temperature range while maintaining a density significantly lower than steel or nickel alloys.

AMS 4935 material is produced by Vacuum Arc Remelting (VAR) or Electron Beam Melting to ensure exceptional cleanliness, homogeneity, and microstructural uniformity. The material is supplied in the annealed condition, which provides a balanced combination of strength, ductility, and toughness. Ti-6Al-4V is the most widely used titanium alloy in the world, accounting for more than 50% of all titanium usage. The extrusion process used for AMS 4935 product forms results in a refined grain structure and consistent mechanical properties, making it ideal for structural aerospace components, fasteners, and complex cross-section shapes.

Available Product Forms

Extruded Bar

Extruded Shapes

AMS 4935 material is supplied as Extruded Bar and Shapes per specification requirements. Round bar, rectangular bar, and custom extruded profiles are available in a range of sizes and cross-sections. Custom-cut lengths from stock bar are available from our in-house processing facility. Contact our materials specialists for non-standard dimensions or custom extrusion profile requirements.

Nominal Chemical Composition

Element	Symbol	Nominal %	Notes
Titanium	Ti	Balance (~90%)	Base metal – low density, excellent corrosion resistance
Aluminum	Al	5.5–6.75% (nom. 6%)	Alpha stabilizer; solid-solution strengthener; reduces density
Vanadium	V	3.5–4.5% (nom. 4%)	Beta stabilizer; increases strength and hardenability
Iron	Fe	0.40% max	Beta stabilizer; controlled to minimize property variability
Oxygen	O	0.20% max	Alpha stabilizer; controlled to balance strength and ductility
Nitrogen	N	0.05% max	Interstitial element; controlled to maintain toughness
Hydrogen	H	0.015% max	Controlled to prevent hydrogen embrittlement
Carbon	C	0.08% max	Controlled to prevent carbide formation and maintain ductility

Chemical composition ranges are nominal. Consult the current issue of AMS 4935 for precise minimum/maximum requirements. Aero-Vac provides full mill test reports (MTRs) with certified chemistry for every order.

Key Properties & Specification Details

Property / Attribute	Details
Specification Number	AMS 4935 (AMS4935)
Issuing Organization	SAE International (Society of Automotive Engineers)
Material Type	Titanium Alloy – Alpha-Beta, Extruded Bar and Shapes
Alloy Name	Ti-6Al-4V (6AL-4V Titanium Alloy)
Nominal Composition	Balance Ti, 6% Al, 4% V
Melt Practice	Vacuum Arc Remelted (VAR) or Electron Beam Melted
Heat Treatment Condition	Annealed
Available Forms	Extruded Bar and Shapes
Density	~0.160 lb/in³ (4.43 g/cm³) – approximately 56% lighter than steel
Ultimate Tensile Strength	130 ksi (895 MPa) minimum, annealed condition
Yield Strength (0.2% offset)	120 ksi (827 MPa) minimum, annealed condition
Corrosion Resistance	Excellent – highly resistant to oxidation, seawater, and many chemical environments
Machinability	Moderate – requires sharp tooling, low speeds, and adequate cooling; work hardening tendency
Weldability	Good – weldable by most fusion processes; requires inert gas shielding to prevent contamination
Magnetic Properties	Non-magnetic
Certification Available	AS9100D / ISO 9001, Certificate of Conformance, MTR

Typical Applications

Aerospace Structural Components: Airframe structural members, bulkheads, wing spars, brackets, and fuselage frames where high strength-to-weight ratio is critical. Ti-6Al-4V extruded shapes are extensively used in commercial and military aircraft structures.

Gas Turbine Engine Parts: Compressor blades, fan blades, discs, rings, and engine structural components for both aircraft and industrial gas turbine engines where light weight combined with high strength is essential.

Aerospace Fasteners & Hardware: High-strength bolts, screws, pins, and fittings for aerospace assemblies requiring corrosion resistance and significant weight savings compared to steel fasteners.

Medical & Surgical Implants: Orthopedic implants, spinal hardware, dental implants, and surgical instruments where biocompatibility, corrosion resistance, and high strength are required.

Defense & Marine Applications: Naval vessel components, submarine hardware, armor systems, missile airframes, and other defense applications where corrosion resistance in aggressive environments combined with light weight is required.

Frequently Asked Questions – AMS 4935

What is AMS 4935 and what does it cover?

AMS 4935 (also written AMS4935) is an SAE International aerospace material specification covering Ti-6Al-4V, an alpha-beta titanium alloy, in the form of extruded bars and shapes. The nominal chemistry of balance titanium with 6% aluminum and 4% vanadium delivers an outstanding combination of high strength-to-weight ratio, excellent corrosion resistance, and good fatigue properties. The material is produced by Vacuum Arc Remelting (VAR) or Electron Beam Melting and is supplied in the annealed condition. AMS 4935 is widely used in aerospace airframe structures, gas turbine engine components, defense applications, and other high-performance uses where light weight combined with high strength is essential.

What is Ti-6Al-4V and what makes it unique?

Ti-6Al-4V (also known as Grade 5 titanium or 6AL-4V) is the most widely used titanium alloy in the world, accounting for more than 50% of all titanium usage. It is an alpha-beta alloy, meaning its microstructure contains both alpha (hcp) and beta (bcc) phases at room temperature. Aluminum acts as an alpha stabilizer and solid-solution strengthener, while vanadium stabilizes the beta phase and improves hardenability. The result is an alloy with a density approximately 56% lower than steel (~4.43 g/cm³), tensile strength of 130 ksi minimum in the annealed condition, excellent corrosion resistance in most environments including seawater, and good weldability. These properties make Ti-6Al-4V the material of choice for weight-critical aerospace structures, turbine engine components, and biomedical implants.

Does Aero-Vac supply AMS 4935 with full mill test reports and certifications?

Yes. All AMS 4935 material supplied by Aero-Vac is fully traceable to mill test reports (MTRs) confirming chemical composition and mechanical properties per the specification. We are AS9100D/ISO 9001 certified with a 99.6% quality rating. Every order ships with certificates of conformance, material certifications, and chemical/mechanical test reports. Electronic delivery of all documentation is available for fast turnaround. If your program requires additional special process certifications or compliance with DFARS or other regulatory requirements, our quality team can coordinate as needed.

What sizes of AMS 4935 extruded bar and shapes does Aero-Vac stock?

Aero-Vac maintains inventory of AMS 4935 Ti-6Al-4V in extruded round bar and structural shape forms across a range of sizes. We carry standard bar diameters and can provide custom-cut lengths from our in-house processing facility at the Port of Kalama. For custom extruded profiles or non-standard cross-sections, our team can source from our global supplier network. Contact us with your specific size, length, and quantity requirements and we will provide a prompt quote with availability and lead time.

What are the typical lead times for AMS 4935 material?

In-stock AMS 4935 material is typically available for same-day or next-day shipment. For custom-cut or specially processed orders, our standard lead time is 2–4 weeks—significantly faster than the industry average of 8–12 weeks. Non-standard extrusion profiles or items requiring mill production may require 4–8 weeks depending on quantity and dimensions. We prioritize urgent aerospace and defense requirements and will always provide honest, upfront delivery estimates. Rush processing is available on select items.

Can Aero-Vac provide value-added processing for AMS 4935 Ti-6Al-4V material?

Yes. Aero-Vac operates a complete in-house processing facility at our Port of Kalama location. For AMS 4935 Ti-6Al-4V extruded bars and shapes, we offer precision saw cutting, surface grinding, turning, milling, and heat treatment services. We also provide comprehensive mechanical and non-destructive testing services in-house. Titanium machining requires careful attention to tooling, speeds, feeds, and coolant to avoid work hardening and heat buildup, and our experienced team is equipped to handle these requirements. Having all capabilities under one roof allows for faster turnaround, tighter quality control, and reduced overall cost compared to using multiple vendors. Contact us to discuss your specific processing requirements.

Need AMS 4935 material or a custom quote?

Our titanium alloy specialists can provide fast pricing, availability, and technical guidance for your AMS 4935 Ti-6Al-4V requirements.