Grade 1 Pure Titanium | UNS R50250 | JIS Class 1 | DIN 3.7025 (Ti1) Supplier
Supplied by Huaxiao-Alloy – Your Trusted Global Alloy Partner
1. Grade 1 Pure Titanium Overview
Grade 1 Pure Titanium is the softest and most ductile grade among all commercially pure titanium grades. With a titanium purity of ≥99.5%, it offers exceptional corrosion resistance, outstanding cold formability, and excellent weldability, making it the preferred material for chemically aggressive and seawater environments.
As a professional Grade 1 titanium supplier, Huaxiao-Alloy supplies UNS R50250 / JIS Class 1 / DIN 3.7025 (Ti1) titanium products in full specifications, strictly manufactured in accordance with ASTM, ASME, EN, DIN, and JIS standards.
2. Equivalent Standards & Designations
| Standard System | Equivalent Grade |
|---|---|
| ASTM | Grade 1 |
| UNS | R50250 |
| JIS | Class 1 |
| DIN / EN | 3.7025 (Ti1) |
| ISO | ISO 5832-2 Grade 1 |
| GB (China) | TA1 |
➡️ All supplied materials are fully traceable and interchangeable across global engineering standards.
3. Chemical Composition of Grade 1 Titanium
Grade 1 titanium is classified as commercially pure titanium, with extremely low interstitial element content.
| Element | Max (%) |
|---|---|
| Titanium (Ti) | Balance (≥99.5%) |
| Oxygen (O) | ≤ 0.18 |
| Iron (Fe) | ≤ 0.20 |
| Carbon (C) | ≤ 0.08 |
| Nitrogen (N) | ≤ 0.03 |
| Hydrogen (H) | ≤ 0.015 |
🔹 The low oxygen and iron levels are the key reason for Grade 1’s superior ductility and corrosion resistance.
4. Mechanical Properties (Room Temperature)
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 240 MPa |
| Yield Strength (0.2%) | ≥ 170 MPa |
| Elongation | ≥ 24% |
| Hardness | ≤ 160 HB |
| Density | 4.51 g/cm³ |
| Melting Point | 1668°C |
➡️ Grade 1 titanium sacrifices strength in exchange for maximum formability and toughness, which is often critical in thin-wall or complex-shaped components.
5. Key Features & Advantages of Grade 1 Titanium
5.1 Outstanding Corrosion Resistance
Excellent resistance to seawater, chlorides, brine, and marine atmospheres
Highly resistant to nitric acid, organic acids, and oxidizing chemicals
Immune to pitting, crevice corrosion, and stress corrosion cracking
5.2 Superior Formability
Best cold-working performance among titanium grades
Ideal for deep drawing, spinning, bending, rolling
Very low risk of cracking during forming
5.3 Excellent Weldability
Easily welded using TIG, MIG, laser, plasma welding
No post-weld heat treatment required in most cases
Corrosion resistance remains intact after welding
5.4 Lightweight & Non-Magnetic
~45% lighter than carbon steel
Non-magnetic and non-toxic
Suitable for sensitive industrial and medical environments
6. Available Product Forms from Huaxiao-Alloy
Huaxiao-Alloy supplies Grade 1 Pure Titanium in a full range of mill and fabricated forms.
6.1 Titanium Sheets & Plates
Standard: ASTM B265
Thickness: 0.5 mm – 50 mm
Surface: Pickled, polished, bright annealed
6.2 Titanium Pipes & Tubes
Standards: ASTM B338 / ASTM B861
Seamless & welded available
OD range: 6 mm – 114 mm
6.3 Titanium Bars & Rods
Standard: ASTM B348
Round / square / hex
Hot-rolled or cold-drawn
6.4 Titanium Wire
Diameter: 0.1 mm – 6.0 mm
Annealed or bright finish
6.5 Forgings & Custom Components
Flanges, rings, fasteners, machined parts
OEM drawings and custom specifications supported
7. Typical Applications of Grade 1 Pure Titanium
7.1 Chemical Processing Industry
Heat exchanger tubes
Chemical reactors
Condensers and piping systems
7.2 Marine & Seawater Applications
Desalination plants
Seawater pipelines
Offshore platform components
7.3 Power & Energy
Condenser tubing
Cooling systems
Nuclear auxiliary equipment
7.4 Medical & Laboratory Equipment
Surgical instruments
Medical device housings
Laboratory vessels and tools
7.5 Industrial Fabrication
Bellows
Thin-wall ducting
Corrosion-resistant enclosures
8. Corrosion Resistance Performance
Grade 1 titanium forms a dense and stable TiO₂ passive film, which self-repairs instantly when damaged.
✔ Excellent resistance to:
Seawater (even high-velocity)
Chloride solutions
Nitric acid
Wet chlorine gas
❌ Not recommended for:
Strong reducing acids (e.g., concentrated HCl without inhibitors)
9. Fabrication, Machining & Welding Guide
9.1 Forming
Excellent cold-forming capability
Low springback
No pre-heating required
9.2 Machining
Use sharp tools and low cutting speeds
Abundant coolant recommended
Avoid excessive heat buildup
9.3 Welding
Argon shielding essential
TIG welding most commonly used
Clean surfaces required before welding
10. Quality Assurance & Certifications
All Grade 1 titanium supplied by Huaxiao-Alloy includes:
EN 10204 3.1 / 3.2 MTC
Chemical & mechanical test reports
Dimensional inspection
UT / Eddy current testing (if required)
ISO 9001 quality system
Full heat number traceability
11. Why Choose Huaxiao-Alloy as Your Titanium Supplier?
✅ 15+ years of special alloy export experience
✅ Strong production base in Baoji, Shanghai, Wuxi
✅ Competitive pricing for bulk orders
✅ Fast delivery to North America, Europe, Middle East
✅ Custom cutting & machining services
✅ Professional technical and sales support
Chemical processing, seawater systems, heat exchangers, and forming-intensive applications.
No. Grade 2 is stronger, but Grade 1 has better formability.
Yes, it is one of the best materials for seawater corrosion resistance.
No, it is completely non-magnetic.
Yes, OEM sizes and drawings are fully supported.
TItanium Products
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