#TC4 titanium alloy oblique rolling perforated rolling tube | Hard core pipeline solution under high temperature and high pressure conditions

——Empower extreme scenarios for oil exploration/weapons and equipment, and establish a solid foundation for operating in harsh environments

In the high-temperature and high-pressure corrosive environment of deep oil drilling, as well as the extreme stress conditions of weapons and equipment, pipes need to possess the core characteristics of "ultra-high strength, corrosion resistance, pressure resistance, and precise forming". Baoji Dingding Titanium Products Co., Ltd. is based on the technological advantages of the "China Titanium Valley" and uses the composite forming technology of oblique rolling perforation+multi pass rolling to create TC4 titanium alloy rolled pipes. With the structural integrity of integrated perforation forming and high-precision control of rolling process, it has become a suitable pipe material for high-end fields such as oil drilling rods and weapon equipment under extreme working conditions.

1、 Cross rolling perforation rolling process: casting the hard core quality of pipelines

TC4 titanium alloy oblique rolling perforation rolling tube is different from the traditional tube forming process. Through the integrated process of "oblique rolling perforation billet+hot rolling finishing", three core process breakthroughs are achieved to ensure the performance of the tube from the source:

1. Integrated perforation molding

Using a CNC oblique rolling perforating machine, titanium alloy billets are rolled into hollow tube billets in one go to avoid welding defects. The overall density of the pipeline is ≥ 99.9%, and it can withstand the combined impact of 150MPa high pressure and 500 ℃ high temperature. It has no leakage or cracking under extreme working conditions in deep oil wells.

2. High precision rolling control

After multiple passes of precision rolling, the outer diameter tolerance of the pipe blank is ≤± 0.1mm, the wall thickness uniformity error is ≤ 0.05mm, and the inner wall roughness Ra is ≤ 0.6 μ m. This not only ensures the smooth transmission of drilling fluid for oil drill pipes, but also meets the high-pressure sealing requirements of hydraulic pipelines for weapons and equipment, with a size qualification rate of 99.8%.

3. Stress relief treatment

After rolling, annealing process is implemented to eliminate residual stress inside the pipe and avoid deformation of the pipeline under high temperature and pressure. Its fatigue resistance can withstand 10 cycles of pressure, far exceeding the service life of traditional pipes and suitable for harsh scenarios of long-term continuous operation.

2、 Core performance: Accurately matching the requirements of high temperature and high pressure working conditions

TC4 titanium alloy itself has excellent specific strength and corrosion resistance. After being strengthened by oblique rolling perforation rolling process, its performance is further adapted to extreme scenarios:

-Mechanical properties: Tensile strength ≥ 960MPa, yield strength ≥ 890MPa, elongation ≥ 12%, impact toughness ≥ 60J/cm ², capable of withstanding the compression of kilometer level formations in deep oil wells and the instantaneous high-pressure impact of weapons and equipment;

-Temperature and pressure resistance: The performance is stable within a wide temperature range of -50 ℃ to 400 ℃, and it can withstand a long-term working pressure of 120MPa and a short-term pressure resistance of up to 150MPa, meeting the core indicators of high-pressure drilling and weapon equipment hydraulic systems in petroleum exploration;

-Corrosion resistance: In corrosive media such as 5% hydrochloric acid, seawater, and drilling fluid, the annual corrosion rate is ≤ 0.0005mm, which is more than 10 times higher than the corrosion resistance of steel pipes. The service life is extended by 8 times in high salinity petroleum formations.

3、 Deep adaptation to extreme scenarios: practical application of hardcore pipelines 1 In the field of petroleum exploration: the "breakthrough drill rod" for deep well drilling

TC4 titanium alloy oblique rolling perforated rolled pipe is the core substrate of high-end petroleum drilling rods. Its integrated perforation structure has no weak points in welds and can be adapted for drilling operations in deep wells above 3000 meters

-As the core pipeline of deep well drilling rods, it can synchronously achieve high-pressure transportation of drilling fluid and transmission of exploration signals. The deformation of the pipeline at 500 ℃ wellbore high temperature is ≤ 0.01%, ensuring drilling efficiency and data accuracy;

-For high corrosion exploration scenarios such as shale gas and deep-sea oil fields, the inner wall of the pipe can be customized with anti-corrosion coatings. It can operate continuously in sulfur-containing and high salt drilling fluids for 5000 hours without corrosion or leakage, greatly reducing the maintenance cost of drilling equipment. It has been applied in multiple key oil and gas field exploration projects in China.

2. In the field of weapons and equipment: the "safety lifeline" of extreme working conditions

In the core components of hydraulic control systems and ammunition conveying pipelines in weapons and equipment, TC4 titanium alloy oblique rolled perforated rolled pipes have become a key guarantee due to their ultra-high strength and precise sealing:

-The hydraulic drive pipeline used for armored equipment can withstand severe vibrations and instantaneous high pressure during equipment movement. In the battlefield environment of -40 ℃ cold and 50 ℃ high temperature, the pipeline is not broken or leaked, ensuring the precise execution of equipment tactical actions;

-The ammunition/fuel delivery pipeline adapted for high-precision weapons has a high-precision inner wall that can reduce fluid resistance, ensure the stability of ammunition firing and fuel supply, and at the same time, its lightweight characteristics (reducing weight by 40% compared to steel pipelines) improve equipment maneuverability. It has passed the rigorous testing of military equipment.

3. Petroleum drilling and production supporting field: "core pipeline" for high-pressure transportation

TC4 titanium alloy oblique rolled perforated rolled pipes also play an important role in the surface high-pressure gathering and underground pumping systems of oil extraction

-As a high-pressure gathering and transportation pipeline, it can withstand the high pressure and corrosive media of oil and gas mixed transportation, and can serve for a long time in high salt environments in oil fields without corrosion, ensuring the efficiency of oil and gas transportation;

-Used as a downhole pumping oil pipe, its excellent anti fatigue performance can cope with frequent pressure fluctuations during start-up and shutdown, and there is no risk of pipeline fatigue fracture in deep well reciprocating operations, which is suitable for the continuous operation requirements of intelligent oil production equipment.

4、 Military grade quality assurance: strict control throughout the entire process

1. Raw material traceability control

We use high-purity sponge titanium with a purity of ≥ 99.8%, which is melted at least 3 times in a vacuum consumable arc furnace to ensure uniform composition without segregation. Each batch of raw materials comes with a complete traceability report, which meets the strict admission standards of the military and petroleum industries.

2. Comprehensive performance testing

Each pipe has undergone ultrasonic testing (military grade I acceptance), hydraulic burst testing (1.5 times rated pressure without leakage), high and low temperature fatigue testing, and corrosion resistance verification. In addition, drilling fluid immersion simulation testing has been added for petroleum pipes, and confidentiality level specialized testing has been implemented for military pipes.

3. Customized service support

We can customize pipe specifications according to needs (outer diameter ranging from 20mm to 150mm, wall thickness ranging from 1mm to 15mm, length ≤ 15m), provide customized post-processing such as high-pressure sealing, and coordinate with military/petroleum specialized technical teams 24 hours a day. Urgent orders can be delivered within 25 days.

Baoji Dingding Titanium: Core supplier of titanium pipes for extreme working conditions

Relying on the full industry chain production capacity and military grade technology of "China Titanium Valley", the company has achieved large-scale production of TC4 titanium alloy oblique rolling perforated rolled pipes, with an annual production capacity of 60 tons. It has served multiple leading domestic oil exploration enterprises and military equipment units, becoming a reliable partner for pipe supply under extreme working conditions.

Choose Baoji Dingding Titanium TC4 Titanium Alloy Diagonal Rolled Perforated Pipe to empower petroleum exploration and weapon equipment with military grade quality. Under extreme working conditions of high temperature and high pressure, we will build a solid safety defense line for your core pipelines!