Recently, we welcomed a delegation from a well-known Indonesian marine engineering company. Led by the Technical Director, this professional team arrived with a clear objective-to source reliable materials for the subsea production systems of their new-generation deep-sea oil and gas field project in the Java Sea. After four days of comprehensive technical exchanges and rigorous on-site production inspections, both parties formally signed a long-term strategic supply agreement for GR4 high-strength commercially pure titanium tubes.
The client's inspection was meticulous and professional, with every step closely aligned with the unique demands of the deep-sea environment. In the high-pressure simulation laboratory, the technical experts spent considerable time witnessing firsthand the performance of GR4 titanium tubes under simulated deep-sea pressure conditions equivalent to 1,500 meters. They carefully reviewed the corrosion test database accumulated over the past three years, particularly the long-term corrosion rate data of titanium tubes in low-temperature, high-pressure seawater environments. These detailed scientific records provided them with ample technical confidence. Upon entering the production workshop, the client showed keen interest in the continuous rolling process for extra-long titanium tubes. When they learned that we could stably produce single tubes up to 18 meters in length, with wall thickness uniformity controlled within ±0.08mm, the engineers nodded frequently in approval.

During the technical exchange session, both sides delved into the special material requirements for deep-sea engineering. The comprehensive advantages of GR4 titanium tubes over traditional materials became the focal point of discussion-their strength is approximately 40% higher than conventional GR2, enabling them to better withstand deep-sea high-pressure environments. At the same time, they maintain excellent seawater corrosion resistance, fully meeting the 30-year maintenance-free design requirement. Moreover, their nearly 50% weight reduction compared to stainless steel materials significantly lowers the difficulty and cost of subsea installation. These characteristics perfectly align with the technical requirements of the subsea Christmas tree hydraulic control systems and crossover pipelines the client is currently constructing.
This collaboration transcends the traditional supplier-buyer relationship, pioneering a new cooperative model. According to the agreement, we will provide engineered integrated solutions, including pre-assembled tube bundle modules, intelligent monitoring systems, and digital delivery platforms.

Titanium Product Specifications
| Product Category | Standard Grades | Common Specifications (Diameter/Thickness/Size) | Standard / Certification | Primary Applications |
|---|---|---|---|---|
| Titanium Tubes (Seamless & Welded) |
GR1, GR2, GR3, GR7, GR12, GR5 (Ti-6Al-4V) | OD: 3mm ~ 250mm Wall Thickness: 0.5mm ~ 25mm Length: Up to 15m (customizable) |
ASTM B338, B861, B862 ASME SB338 |
Heat exchangers, condensers, marine piping, aerospace, chemical processing. |
| Titanium Plates / Sheets | GR1, GR2, GR5 (Ti-6Al-4V), GR7, GR9 (Ti-3Al-2.5V) | Thickness: 0.5mm ~ 100mm Width: Up to 2000mm Length: Up to 6000mm |
ASTM B265 | Pressure vessels, tanks, marine hulls, aerospace skin, medical implants, architectural cladding. |
| Titanium Bars / Rods | GR1, GR2, GR5 (Ti-6Al-4V), GR7, GR12 | Diameter: 3mm ~ 300mm (Forged & Rolled) Length: Up to 6000mm (customizable) Forms: Round, Square, Hexagonal |
ASTM B348 | Fasteners, shafts, valves, pump parts, surgical implants, aerospace structural components. |
| Titanium Foils | GR1, GR2 | Thickness: 0.03mm ~ 0.5mm Width: Up to 500mm (coils or sheets) |
ASTM B265 | Gaskets, bellows, honeycomb cores, medical device components, precision instruments. |
| Titanium Wires | GR1, GR2, GR5 (Ti-6Al-4V) | Diameter: 0.1mm ~ 8mm Form: Coils, straight lengths |
ASTM B863, F67 | Welding wire, springs, medical sutures and stents, mesh, fasteners, additive manufacturing. |
| CNC Machined Parts | All grades available (GR1, GR2, GR5, GR7, etc.) | Machining Capability: - 3/4/5-axis CNC milling - CNC turning - Tolerance: As tight as ±0.01mm - Surface Finish: Ra 0.4µm and above |
Custom drawings & specifications | Precision components for aerospace, medical implants (joints, plates), semiconductor equipment, high-end valves and pumps. |





