Name: GR2 Titanium Square Tube
Brand: Jmyun
SKU: 167790424

Products Description

Seamless titanium square tube is a kind of long titanium material with hollow section and no joint around it. It is a square tube formed by extrusion of seamless tube through the four sides of the mold. is widely used as a pipeline for conveying fluid.

Products Parameter

GR2 Titanium square tube/titanium rectangular tube (in-stock selection)
Titanium square tube/titanium rectangular tube (GR5/GR2) Titanium rectangular tube performance; high strength, hardness and corrosion resistance in the 600 degree range, good creep rupture performance in the 900 degree temperature range.
Specifications are as follows: Titanium Square Tubes Inventory Table

Products Process

Is the titanium square tube a seamless tube or a welded tube?
Both are fine.
1. Seamless square tube: Use titanium ingots or solid tubes to make rough tubes through perforation, and then hot-rolled, cold-rolled or cold-drawn.
2. Welded square tube: The plate is bent and welded through pretreatment.
The difference between them is:
Different processes: Seamless square tubes are formed by cold drawing of seamless round tubes, and welded square tubes are formed by titanium welding. The processing techniques of the two square tubes are different.

Different prices:Usually the price of seamless square tube is more expensive than welded titanium tube.
Different performance: There is high temperature during welding, which will affect the structure of the metal, and the mechanical properties are not as stable as seamless square tubes.

titanium tube detal

Products Feature

Which one is more stable, titanium square tube or titanium rectangular tube?

It depends on the application. If it is to withstand bending moment or torque, titanium rectangular tube is better (bending section coefficient bh^2/6 or polar moment of inertia is relatively large);
But if it is to withstand shear force, titanium square tube is better (large cross-sectional area).

Titanium tubes include rectangular tubes and square tubes

1. GR2 Titanium Rectangular tube

Rectangular tube is a rectangular section of titanium tube, there are many kinds, the size range is wide.
Commonly used in building structure, manufacturing industry.
Rectangular pipe is widely used because of its good bearing capacity and stability.

2. GR2 Titanium Square Tube

The pure square pipe has the advantages of simple structure, convenient manufacture and good compression resistance. In addition, in some engineering structures, square tubes are often used as supporting members.

Products Application

In the field of construction, they undertake important tasks such as support, connection, and fixation, ensuring the safety and stability of the building, and adding beauty and practicality to the building.

In the field of machinery, titanium square tubes are used to manufacture various frames, brackets, connectors, etc. with their good mechanical properties and processing properties, providing guarantees for the normal operation of mechanical equipment.

Other fields. Greenhouse brackets in the agricultural field, breeding equipment in animal husbandry, water treatment equipment in the environmental protection field, garbage incinerators, etc.

The uses of welded square pipe are construction, machinery manufacturing, iron and steel construction projects, shipbuilding, solar power generation bracket, steel structure engineering, power engineering, power plant, agriculture and chemical machinery.

Why does titanium tube crack during welding?

When titanium is welded, when the weld contains high oxygen and nitrogen, the weld or heat-affected zone will become brittle. Under the action of large welding stress, cold cracks will appear. The characteristic is that the cracks appear several hours or even longer after welding, which is called delayed cracks.

The diffusion of hydrogen during welding is the main cause of this crack. During welding, hydrogen diffuses from the high-temperature deep pool to the heat-affected zone with a lower temperature. In addition, due to the expansion of the volume of hydride precipitation, a large organizational stress is caused. Hydrogen atoms diffuse and gather to the high-stress parts of the area, thus generating cracks. The way to prevent this delayed crack is mainly to reduce the hydrogen source in the welded joint.

After understanding the reasons for the cracks in titanium tubes, let's take a look at why pores are generated in titanium tube welds?

Porosity is a major problem titanium tube welding. The fundamental reason for the generation of pores is the result of hydrogen influence. The main process measures to prevent the generation of pores are:

1. Welding should be carried out under the protection of high-purity argon gas with high purity.

2. Remove surface oil and scale, etc.

3. Apply good gas protection to the molten pool, control the flow and flow rate of argon gas, and prevent turbulence from affecting the protection effect.

4. Appropriately select welding parameters and specifications, increase the residence time of the deep molten pool, facilitate the overflow of bubbles, and effectively reduce pores.