Grade 7 Titanium Tube

 

Product Name	Grade 7 titanium tube
Standard	ASTM B338. ASTM B338.
Material	Grade 1,Grade 2,Grade 5,Grade 7,Grade 9,Grade 11,Grade 12…
Size	Dia 6.0mm ~114.3mm, length is 18000mm (Max)
Processing Technique	Hot forging, hot rolling and cold rolling
Delivery status	M
Surfuace	Polished, salted, and sandblasted
Application	Heat exchangers, condensers, water treatment, seawater desalination, evaporators, and piping, etc..
Test	Hydraulic pressure test, ultrasonic test, X-ray test, eddy current test, flaring and flattening test.
Package Method	Packaging according to customer requirements and specifications
Transportation	Ocean freight (FCL/LCL), air freight, express delivery (TNT/DHL/FEDEX)
Port	Shanghai,Tianjin,Qingdao

 

 

Material	N	C	H	Fe	O	Al	V	Pa	Mo	Ni	Ti
Gr7	0.03	0.08	0.015	0.30	0.25	/	/	0.12-0.25	/	/	Balance

 

 

Grade7 titanium tube	Tensile strength(min)		Yeild strength(min)		Elongation(%)
	ksi	MPa	ksi	MPa
	50	345	40	275	20

 

Great Corrosion resistance: GR7 titanium alloy pipe is very stable in both reducing and oxidizing environments, especially strong corrosion of acids, alkalis, and saltwater, making it suitable for use in chemical, marine and medical equipment.

Lightweight and high-strength: Grade 7 titanium tubes have a low density (approx. 4.51 g/cm³) and have a high tensile strength that can withstand pressures of over 620 MPa. Because the specific strength (strength/density) of Gr7 grade titanium alloy is much higher than that of other metals, it is more suitable for scenarios such as aerospace where weight reduction is required

 High temperature resistance: Gr7 grade titanium alloy can maintain its strength at high temperatures of 450~500°C, making it ideal for high-temperature environments. It has excellent creep resistance and high temperature resistance and high temperature stability, making it suitable for long-term use.

Good weldability and processability: Gr7 titanium pipes are suitable for TIG welding, MIG welding, and other processes, with a weld strength of up to 90% of the matrix. However, the forging process requires temperature and speed control to avoid issues with the nature of the tissue.

 

 

Grade 7 titanium tubes are widely used in engine blades, landing gear, etc.

Chemical field: It can be used in the manufacture of reactors, storage tanks, pipelines, and is very resistant to strong corrosion.

Medical aspect: It can be used in the repair of artificial joints and medical devices, with good biocompatibility.

Marine field: used in hulls and propellers, with the ability to resist seawater corrosion.

 

 

 

The core reason for the high price of Grade 7 titanium tube lies in its rare composition, rigorous process and high-end application scenarios, which can be summarized into the following four points:

1.High palladium content
The reason Gr7 titanium tubes are expensive is because they contain 0.12-0.25% palladium (Pd), a very expensive rare metal that costs 100 times more than titanium. It is used in catalysts, electronics, and other fields, and is in high demand, but the supply is limited, which results in the high cost of Gr7 titanium tubes.

2. Excellent Corrosion Resistance

Because the palladium element is added to Gr7 titanium tubes, it performs excellently in extreme corrosive environments such as strong acids and strong chlorides, effectively preventing pitting and crevice corrosion. Its corrosion resistance far exceeds that of other common titanium alloys. The excellent corrosion resistance makes it widely applicable in high-end fields, while also increasing the complexity of the manufacturing process.

 

3. High processing difficulty

Palladium-containing titanium alloys have extremely high temperature control requirements, and precision processes are required in forging, welding and other links to avoid material deformation or performance degradation. The production process also needs to ensure the uniform distribution of palladium elements, involving complex processes such as precision smelting and non-destructive testing, which further increases production costs.

4. The application field is high-end and the demand is concentrated

Gr7 titanium tubes are mainly used in aerospace, medical, nuclear energy and other fields with strict quality requirements, although the demand for these scenarios is concentrated but the scale is limited, it is difficult to dilute the cost through large-scale production. At the same time, manufacturers need to provide customized products for niche markets, further driving up prices.

The above reasons are the reasons why the price of Gr7 titanium tubing remains high.

 

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