Grade 2 Pure Titanium | UNS R50400 | JIS Class 2 | DIN 3.7035 (Ti2) Supplier
Supplied by Huaxiao-Alloy – Your Trusted Global Alloy Partner
1. Grade 2 Pure Titanium Overview
Grade 2 Pure Titanium (Ti2) is the most widely used commercially pure titanium grade, offering the best overall balance of strength, corrosion resistance, formability, and weldability. Compared with Grade 1, Grade 2 provides higher mechanical strength while still maintaining excellent corrosion resistance and fabrication performance.
As a reliable Grade 2 titanium supplier, Huaxiao-Alloy supplies UNS R50400 / JIS Class 2 / DIN 3.7035 (Ti2) titanium products in full specifications, strictly manufactured according to ASTM, ASME, EN, DIN, and JIS standards.
2. Equivalent Standards & Designations
| Standard System | Equivalent Grade |
|---|---|
| ASTM | Grade 2 |
| UNS | R50400 |
| JIS | Class 2 |
| DIN / EN | 3.7035 (Ti2) |
| ISO | ISO 5832-2 Grade 2 |
| GB (China) | TA2 |
➡️ Grade 2 titanium is globally interchangeable across pressure vessel, heat exchanger, and marine standards.
3. Chemical Composition of Grade 2 Titanium
Grade 2 titanium remains a commercially pure titanium, with slightly higher oxygen and iron content than Grade 1 for improved strength.
| Element | Max (%) |
|---|---|
| Titanium (Ti) | Balance |
| Oxygen (O) | ≤ 0.25 |
| Iron (Fe) | ≤ 0.30 |
| Carbon (C) | ≤ 0.08 |
| Nitrogen (N) | ≤ 0.03 |
| Hydrogen (H) | ≤ 0.015 |
🔹 Increased oxygen content is the key factor enhancing the strength of Grade 2.
4. Mechanical Properties (Room Temperature)
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 345 MPa |
| Yield Strength (0.2%) | ≥ 275 MPa |
| Elongation | ≥ 20% |
| Hardness | ≤ 200 HB |
| Density | 4.51 g/cm³ |
| Melting Point | 1668°C |
➡️ Grade 2 offers ~40% higher strength than Grade 1, making it suitable for pressure-bearing components.
5. Key Features & Advantages of Grade 2 Titanium
5.1 Excellent Corrosion Resistance
Outstanding resistance to seawater, chlorides, brine
Excellent performance in oxidizing and mildly reducing acids
Resistant to pitting, crevice corrosion, and stress corrosion cracking
5.2 Balanced Strength & Formability
Stronger than Grade 1
Still suitable for cold forming and bending
Ideal for industrial fabrication
5.3 Superior Weldability
Easily welded using TIG, MIG, plasma welding
No post-weld heat treatment required
Welds maintain corrosion resistance
5.4 Lightweight & Non-Magnetic
45% lighter than steel
Non-magnetic and non-toxic
Suitable for clean and sensitive environments
6. Available Product Forms from Huaxiao-Alloy
Huaxiao-Alloy supplies Grade 2 Pure Titanium in full product forms.
6.1 Titanium Sheets & Plates
Standard: ASTM B265
Thickness: 0.5 mm – 60 mm
Surface: Pickled, annealed, polished
6.2 Titanium Pipes & Tubes
Standards: ASTM B338 / ASTM B861
Seamless & welded
OD: 6 mm – 168 mm
6.3 Titanium Bars & Rods
Standard: ASTM B348
Round / square / hex
Hot-rolled & cold-drawn
6.4 Titanium Wire
Diameter: 0.2 mm – 6.0 mm
Annealed or bright finish
6.5 Forgings & Custom Parts
Flanges, rings, fasteners, machined components
OEM drawings supported
7. Typical Applications of Grade 2 Pure Titanium
7.1 Chemical Processing Industry
Heat exchangers
Reactors and vessels
Piping systems
7.2 Marine & Seawater Applications
Desalination plants
Offshore platforms
Seawater cooling systems
7.3 Power & Energy Industry
Condenser tubing
Cooling systems
Nuclear auxiliary equipment
7.4 Aerospace & Industrial Equipment
Aircraft ducting
Heat shields
Structural components
7.5 Medical & Industrial Devices
Surgical tools
Medical equipment housings
Industrial enclosures
8. Corrosion Resistance Performance
Grade 2 titanium forms a stable TiO₂ passive film, providing long-term protection.
✔ Highly resistant to:
Seawater (even high-flow conditions)
Chloride-containing environments
Nitric acid and organic acids
❌ Not recommended for:
Strong reducing acids without inhibitors
9. Fabrication, Machining & Welding Guide
9.1 Forming
Good cold-forming capability
Slightly higher forming force than Grade 1
Minimal springback
9.2 Machining
Lower cutting speeds required
Sharp tools and coolant essential
9.3 Welding
Argon shielding mandatory
TIG welding preferred
Cleanliness critical before welding
10. Quality Assurance & Certifications
All Grade 2 titanium supplied by Huaxiao-Alloy includes:
EN 10204 3.1 / 3.2 Mill Test Certificate
Chemical & mechanical test reports
Dimensional inspection
UT / Eddy current testing (if required)
ISO 9001 quality control
Full heat number traceability
11. Why Choose Huaxiao-Alloy as Your Grade 2 Titanium Supplier?
✅ 15+ years of titanium & special alloy export experience
✅ Strong production base in Baoji, Shanghai, Wuxi
✅ Competitive pricing & stable supply
✅ Fast delivery worldwide
✅ OEM & custom machining support
✅ Professional technical consultation
Heat exchangers, chemical equipment, marine systems, and pressure applications.
Yes, Grade 2 offers significantly higher strength.
Yes, it has excellent seawater corrosion resistance.
No, it is completely non-magnetic.
Yes, we support bulk and long-term supply contracts.
TItanium Products
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