GR1 Titanium Welding Wire
Gr1 titanium alloy has good cutting properties and excellent weldability, making it suitable for machining operations such as turning, milling and drilling to achieve high precision and surface quality.
Description
What is GR1 titanium?
GR1 titanium is the softest unalloyed titanium with the lowest strength and highest ductility. It is weldable, cold formable and impact resistant.GR1 titanium weld wire has good resistance to mild reducing conditions and very good resistance to strong oxidizing environments with or without chlorides. The alloy is used in a wide range of applications including plate heat exchangers, chemical equipment, chlorine production, desalination and anodes.
GR1 Titanium Data Sheet
Chemical composition - limits in % (ASTM B265 latest edition)
| Ti | Rest |
| Fe | max. 0,20 |
| O | max. 0,18 |
| C | max. 0,08 |
| N | max. 0,03 |
| H | max. 0,015 |
Mechanical Properties (Annealed Condition - Typical)
| Property | Value | Unit | Test Standard |
|---|---|---|---|
| Tensile Strength, min. | 240 | MPa (35 ksi) | ASTM E8 |
| Yield Strength (0.2% Offset), min. | 170 | MPa (25 ksi) | ASTM E8 |
| Elongation in 2" / 50mm, min. | 24 | % | ASTM E8 |
| Reduction of Area | 30 | % | ASTM E8 |
| Hardness (Rockwell B) | 70 - 85 | HRB | ASTM E18 |
| Modulus of Elasticity | 105 | GPa (15.2 x 10⁶ psi) | - |
| Density | 4.51 | g/cm³ (0.163 lb/in³) | - |
Physical constants and thermal properties
| Density | 4,51g/cm² |
| Melting point | 1670°C |
| Beta transus temperature | 888 ± 4°C |
| Thermal conductivity at 20°C | 16 W/ m°C |
Pure titanium wire GR1 has very good ductility and therefore very good cold forming properties, which makes the material suitable for deep drawing. Titanium GR1 is known for its excellent general and seawater corrosion resistance and has high corrosion resistance in oxidizing, neutral and mildly reducing media (solutions) including chlorides.
We can provide GR1 titanium
GR1 Titanium Processing
| Capability | Key Processes & Expertise |
|---|---|
| Precision Machining | CNC milling, turning, drilling & tapping. Utilizing sharp tooling, optimized feeds/speeds, and dedicated coolants to overcome GR1's "gummy" nature and achieve tight tolerances. |
| Forming & Fabrication | Cold rolling, deep drawing, press brake bending, hydroforming. Leveraging GR1's exceptional ductility for complex shapes with controlled springback. |
| Welding & Joining | High-purity argon GTAW (TIG) welding, laser welding. Full-trailing gas protection for oxide-free, corrosion-resistant welds. Post-weld stress relieving available. |
| Cutting & Blanking | High-definition plasma cutting, waterjet cutting, laser cutting. Delivering clean edges with minimal heat-affected zone for superior downstream processing. |
| Surface Finishing | Mechanical polishing (to mirror or satin), abrasive blasting, pickling (to ASTM/medical standards), passivation. Preparing surfaces for final use or coating. |
FAQ
Q: Can GR1 Titanium be heat-treated to increase its strength?
A: No, GR1 is a non-heat-treatable alloy. Its strength can only be moderately increased through cold working (work hardening). The primary thermal process is annealing to relieve stresses and restore ductility.
Q: Is GR1 Titanium resistant to seawater corrosion?
A: Yes, it offers exceptional resistance to seawater and chloride-containing environments, making it a prime choice for marine, offshore, and desalination applications. Its performance is superior to most stainless steels in these conditions.
Q: Why is GR1 Titanium considered difficult to machine?
A: Its low thermal conductivity and "gummy" nature cause heat to build up at the cutting edge, leading to tool wear and material adhesion (built-up edge). This requires sharp tools, low speeds, high feed rates, and ample coolant.
Q: How do I clean or prepare the surface of GR1 Titanium before welding or painting?
A: Remove all contaminants (oils, grease, oxides) using a non-chlorinated solvent (like acetone) followed by mechanical abrasion (stainless steel wire brush used only on titanium) or acid pickling (HF/HNO3 solution). This ensures a clean, oxide-free surface.
Q: What standards cover GR1 Titanium plate and sheet?
A: The primary standard is ASTM B265, "Standard Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate." It specifies chemical, mechanical, and dimensional requirements.
Our product range
| Product Form | Available Shapes / Types | Common Grades | Typical Dimensions (Range) | Standard Specifications |
|---|---|---|---|---|
| Titanium Tube & Pipe | - Seamless Pipe - Welded Pipe - Heat Exchanger Tubes (U-Tube, Straight) - Hydraulic & Instrumentation Tubing |
GR1, GR2, GR7, GR9, GR12, GR5 (Ti-6Al-4V) | - OD: 1/8" to 12" (3mm - 325mm) - Wall Thickness: 0.028" to 1.0" (0.7mm - 25mm) - Length: Up to 20ft (6m) standard, custom lengths available |
ASTM B337, B338, B861, B862 ASME SB337, SB338 |
| Titanium Sheet & Plate | - Cold Rolled Sheet - Hot Rolled Plate - Checker Plate / Tread Plate |
GR1, GR2, GR5, GR7, GR9, GR12 | - Sheet Thickness: 0.016" to 0.187" (0.4mm - 4.7mm) - Plate Thickness: 0.187" to 4" (4.7mm - 100mm)+ - Width: Up to 60" (1500mm) - Length: Up to 240" (6000mm) |
ASTM B265 ASME SB265 |
| Titanium Bar & Rod | - Round Bar - Hex Bar - Square Bar - Forged Bar - Centerless Ground Bar |
GR1, GR2, GR5, GR7, GR9, GR12 | - Round Bar Diameter: 0.125" to 12" (3mm - 300mm) - Hex/Square: 0.125" to 4" (3mm - 100mm) - Length: Random, cut-to-length, or coils (small diameters) |
ASTM B348 ASME SB348 |
| Titanium Wire | - Coiled Welding Wire - Straight Length Wire - Spring Wire - Fastener Wire |
GR1, GR2, GR5 (ELI for medical), GR7 | - Diameter: 0.010" to 0.25" (0.25mm - 6.35mm) standard - Spool Weight: Standard 5lb, 10lb, 25lb spools; custom packaging available |
ASTM B863, F67 (for medical) |
| Titanium Strip & Foil | - Cold Rolled Strip (Coil) - Precision Foil - Shim Stock |
GR1, GR2, GR5 | - Thickness (Strip): 0.004" to 0.125" (0.1mm - 3.1mm) - Thickness (Foil): 0.0005" to 0.004" (0.012mm - 0.1mm) - Width: Up to 24" (600mm) |
ASTM B265 (strip/foil) |
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Our factory
We specialize in the research, development, and production of specialty titanium alloys and custom profiles. Our factory houses a dedicated titanium alloy R&D center and collaborates with multiple materials research institutes, possessing the capabilities to melt and form special materials such as titanium-molybdenum, titanium-palladium, and titanium-nickel shape memory alloys. Our production lines can customize extra-wide titanium plates (width > 2m), ultra-large diameter-to-thickness ratio thin-walled tubes, and titanium profiles with complex cross-sections. We are your technical partner in titanium materials for solving challenges in extreme corrosion environments, ultra-high or ultra-low temperatures, and special functional requirements.
Titanium product packaging
Our standard packaging protocol includes multiple protective layers tailored to the specific product form and customer requirements. All materials are first cleaned, dried, and wrapped with VCI (Vapor Corrosion Inhibitor) paper or PE film to prevent oxidation and surface contamination. Products are then securely bundled and cushioned with waterproof corrugated paper and edge protectors. Finished bundles are placed in plywood crates, heavy-duty cardboard boxes, or sealed in moisture-proof PVC film on pallets, with clear, durable labeling for handling and identification. For international sea freight, we offer IPPC-certified fumigation wooden cases or seaworthy export crates, ensuring your order arrives safely and in ready-to-use condition, no matter the destination.
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