Titanium Grade 5 vs Grade 2 Titanium
Jan 15, 2026
Ti 6Al-4V is the most widely used of all Titanium grades. It is typically available in the annealed condition and is readily heat treatable to increase strength, for a wide range of applications. As a general-purpose alloy, Ti 6Al-4V has a broad spectrum of desirable properties at temperatures around -210°C – 400°C.
Titanium grade 5 or Ti 6Al-4V is an alpha-beta (α-β) alloy. Therefore, it may be heat treated to give medium-high strength in sections under 100 mm thick. However, hardenability is limited and sections over 25 mm may not fully develop desired properties. Ti 6Al-4V has a good weldability (with matching or ELI filler wire) and hot-formability. The degree of cold forming is, however, limited.
Titanium grade 1 is the most ductile of the commercially pure Titanium grades. As a result, the alloy is widely specified for the manufacture of plate heat exchangers.
Titanium Grade 2 or Titanium CP3 is a commercially pure alpha (α) alloy. Although not as strong as Ti 6Al-4V, Titanium grade 2 has outstanding corrosion resistance against variety of aggressive media. For example, Titanium grade 2 is virtually immune to wet chlorine at 10°C – 80°C (0-0.02 mpy or 0.001 mm/y) and thus, used to make chlorine dioxide mixers, pipework and fasteners in modern bleach plants.
Titanium grade 2 is specified based on its excellent corrosion resistance in environments which include: calcium chloride, cupric chloride, ferric chloride, various concentrations of acetic acid, high temperature seawater, most organic media and more.
However, other conditions such as temperature, pH level and flow velocity could alter its properties drastically e.g. susceptibility to stress corrosion cracking and crevice corrosion. When compared with Titanium grade 5 (Ti 6Al-4V), Titanium grade 2 is generally selected where aqueous corrosion resistance and/or formability are required.
| Properties | Ti 6Al-4V (UNS R56400) | Titanium Grade 2 (UNS R50400) |
|---|---|---|
| Metallurgy | 895 MPa | 345 MPa |
| Ultimate tensile strength | 827 MPa | 276 MPa |
| 0.2% offset yield strength | 827 MPa | 276 MPa |
| % Elongation (Ductility) | 10 | 20 |
| Corrosion resistance | Very good | Outstanding |
| Creep and stress-rupture | High | NA |
| Fatigue | High | NA |
| Service temperature | -210°C – 400°C for reliable structural integrity | Depends on environments e.g. up to 316°C for steam and seawater |
| Weldability | Weldable |
At temperatures up to 200°C in normal atmosphere, Titanium grade 2 and other commercially pure grades are also a popular choice for lining material, when corrosion resistance is needed on the surface. Often cheaper and stronger steels are used as outer assemblies. One key application is lining of chimney stacks on coal fired power stations which have been retrofitted with FGD Systems ( Flue Gas Desulphurisation plants).
Our product range
| Product Category | Product Form | Common Grades / Alloys | Applicable Standards (Examples) |
|---|---|---|---|
| Titanium Tubes | Seamless & Welded Tubes | • CP (Commercially Pure): Gr1, Gr2, Gr3 • Alloys: Ti-6Al-4V (Gr5), Ti-3Al-2.5V (Gr9) | ASTM B337, B338 ASME SB338 DIN 17860, 17861 GB/T 3624, 3625 |
| Titanium Bars | Round, Hexagon, Square Bars | • CP: Gr1, Gr2, Gr4 • Alloys: Ti-6Al-4V (Gr5), Ti-6Al-4V ELI | ASTM B348 ASME SB348 AMS 4928 GB/T 2965 |
| Titanium Plates/Sheets | Plates, Sheets, Strips | • CP: Gr1, Gr2, Gr3, Gr4 • Alloys: Ti-6Al-4V (Gr5), Ti-6Al-4V ELI, Ti-15V-3Cr-3Sn-3Al (Gr21) | ASTM B265 ASME SB265 AMS 4911 GB/T 3621 |
| Titanium Wires | Coils, Straight Lengths | • CP: Gr1, Gr2, Gr4 • Alloys: Ti-6Al-4V (Gr5) • Specialty: Ti-Ni Shape Memory Alloy (on request) | ASTM F67, B863 AMS 4954 GB/T 3623 |
| Titanium Foils | Thin Foils, Ultra-thin Strips | • CP: Gr1, Gr2 (most common) | ASTM B265 (for thinner gauges) Custom specifications |
Our factory
why choose our products
Our factory is a specialized and integrated manufacturer dedicated to titanium and titanium alloy products. Equipped with advanced precision forging, rolling, drawing, and heat treatment lines, we produce a complete range of forms including tubes, bars, plates/sheets, wires, and foils. We strictly adhere to international standards such as ASTM, ASME, and GB, utilizing grades from CP (Gr1, Gr2) to high-performance alloys like Ti-6Al-4V (Gr5). Our core strength lies in our stringent process control from raw material to finished product, supported by a fully-equipped in-house laboratory for metallurgical and mechanical testing. This integrated system ensures exceptional quality, consistency, and reliability for our customers in aerospace, medical, chemical processing, and other high-tech industries.
