Make a call
AMS 4900
AMS 4900 Titanium Sheet & Strip (CP Grade 3 – UNS R50550)
AMS 4900 covers commercially pure Grade 3 titanium supplied in sheet and strip form in the annealed condition. Known for its excellent corrosion resistance, high strength-to-weight ratio, and superior performance in oxidizing and chloride environments, AMS 4900 is widely used across aerospace, chemical, marine, and medical sectors. It offers the highest allowable design stresses among all CP titanium grades (Grade 1–4), making it ideal for moderate-strength structural and corrosive applications.
Overview of AMS 4900 (CP Titanium Grade 3)
AMS 4900 defines titanium Grade 3 sheet and strip that has been annealed for improved toughness, formability, and structural reliability. Grade 3 is stronger than Grade 1 and Grade 2 while retaining good ductility and weldability. Its corrosion behavior is comparable to other commercially pure grades, making it a reliable choice for components exposed to seawater, chemicals, and atmospheric conditions.
Alloy: CP Titanium Grade 3
UNS: R50550
Specification: AMS 4900
Condition: Annealed
Forms: Sheet and Strip
Category: Commercially Pure Titanium (Unalloyed)
Key Features & Advantages
Higher strength than CP Grades 1 and 2
Excellent resistance to oxidation, freshwater, seawater, and chlorides
High strength-to-weight ratio, ideal for aerospace applications
Good cold-forming characteristics
Readily weldable using standard titanium welding practices
Stable performance at both low and elevated temperatures
High toughness and ductility retained after annealing
Typical Chemical Composition (CP Grade 3 Titanium)
Values represent typical specification limits for commercially pure Grade 3 titanium. Exact values are reported on the Mill Test Certificate (MTC) for each heat.
| Element | Limit / Typical Max |
|---|---|
| Titanium (Ti) | Balance |
| Iron (Fe) | up to 0.30% |
| Oxygen (O) | up to 0.30% |
| Carbon (C) | up to 0.08% |
| Nitrogen (N) | up to 0.05% |
| Hydrogen (H) | up to 0.015% |
Mechanical Properties (Annealed, Typical for AMS 4900)
Mechanical values are approximate and vary with thickness, product orientation, and annealing practice. Design and acceptance should always refer to the applicable specification and MTC.
| Property | Typical Value |
|---|---|
| Tensile Strength | ≈ 448 MPa (65 ksi) |
| Yield Strength | ≈ 379–552 MPa (55–80 ksi) |
| Elongation | ≈ 18% |
| Density | 4.51 g/cm³ |
| Melting Point | ~1670°C |
Applications of AMS 4900 Titanium
AMS 4900 Grade 3 titanium sheet and strip are used in industries where a balance between strength, corrosion resistance, and formability is required:
Aerospace structural panels and brackets
Chemical processing vessels, piping, and heat exchangers
Marine hardware and offshore equipment
Medical equipment and instrumentation
Industrial components operating in chloride environments
Power generation and desalination systems
Available Forms & Size Range
AMS 4900 Grade 3 titanium can be supplied in a range of sheet and strip sizes to suit fabrication and forming requirements:
AMS 4900 Titanium Sheet: common thickness range approx. 0.012" to 0.063" (custom sizes available upon request)
AMS 4900 Titanium Strip: supplied in coil or flat strip formats; typical thicknesses match sheet range
Finishes available:
Annealed
Pickled
Polished
Bright finish
Custom finishes on request
Equivalent and Related Standards
ASTM B265 (Titanium Sheet and Plate)
ASTM F67 (Commercially Pure Titanium – Implants)
MIL-T-9046 (historical reference for CP titanium)
DFARS-compliant options available
Trade names: CP Grade 3 Titanium, Grade 3 Titanium, CP3 Titanium.
Why Choose AMS 4900 Titanium Sheet & Strip?
Stronger than CP1 and CP2 while still easily formable
Superior corrosion resistance for chemical and marine environments
Reliable structural performance for aerospace and defense applications
Excellent weldability for fabricated assemblies
Global mill certification (3.1 MTC) available
Compatible with precision cutting, slitting, and forming operations
AMS 4900 Titanium Grade 3 delivers dependable strength, corrosion resistance, and manufacturability — making it a top choice for industries requiring lightweight, high-performance materials.
Precision-slit sheet and strip, tight gauge control, and clean surfaces ready for forming, welding, and finishing.
3.1 MTCs, heat/lot traceability, and optional additional testing (UT, hardness, microstructure) to match project specs.
Get To Know Us
AMS 4900 Grade 3 Titanium.
Fast Quotes. Global Shipping.
Stock and mill routes for AMS 4900 titanium sheet and strip, with full traceability and export-ready packaging for global projects.