Product Introduction

Grade 2 welded titanium tubes are used in heat exchangers and cooling equipment where corrosion resistance, dimensional consistency, and project-specific sizes are important. Compared with seamless tubing, welded tube can be a practical option for larger diameters, thinner walls, and fixed-length supply when the design and inspection requirements are clearly defined.
In service, weld-seam quality and dimensional stability are key considerations. Control of strip material, welding parameters, shielding, post-weld treatment, and inspection helps maintain consistent performance across the tube and weld area.

Titanium Welded Tube Gr2 factory

Product Parameter

Specification

Typical Value

Industrial Relevance

Material Grade

Titanium Grade 2 / UNS R50400

Commercially pure titanium for welded tubing

Standard

ASTM B338

For welded condenser and heat exchanger tubing

Outer Diameter

12–114 mm

Suitable for standard shell-and-tube and condenser designs

Wall Thickness

Confirmed by OD and project requirements

Thin-wall supply depends on diameter and welding process

Tensile Strength

≥345 MPa

Provides sufficient strength for pressure-bearing applications

Elongation

≥20%

Supports tube expansion and forming during assembly

Thermal Conductivity

~16 W/m·K

Ensures stable and predictable heat transfer performance

Corrosion Resistance

Suitable for many seawater and chloride-bearing services

Final selection depends on medium, temperature, and crevice conditions

Manufacturing Method

Longitudinally welded from titanium strip

Supports consistent thin-wall and fixed-length production

Weld Quality Control

Weld seam inspection and dimensional verification

Inspection method confirmed by order requirements

Product Features & Application

Seawater Cooling Systems

Used in condenser tubing and seawater cooling equipment where tube dimensions and operating conditions are clearly specified.

Heat Exchanger Tube Bundles

Welded titanium tubes are used where OD, wall thickness, fixed length, and weld quality must match the tube-sheet design.

Chemical Process Equipment

Used in condensers, evaporators, and cooling sections of chemical equipment. Selection depends on the medium, temperature, pressure, and fabrication requirements.

■ Dimensional Control for Tube-Sheet Assembly

Controlled outside diameter, wall thickness, and straightness support tube alignment and expansion when required by the tube-sheet design.

■ Corrosion Resistance

Titanium provides resistance in many seawater and chloride-bearing environments. Appropriate welding, shielding, surface treatment, and inspection help maintain consistent performance at the weld area.

■ Heat Transfer Service

Grade 2 welded titanium tubes are used in condensers and evaporators where cooling-water chemistry, operating temperature, and tube dimensions are clearly defined.

■ Industry Applications
- Offshore cooling and condenser equipment

- Electroplating circulation and cooling systems

- Chemical-process condensers and evaporators

Quality Management

Positive Material Identification (PMI)

Eddy Current Testing (ECT)

Flare Test (Expanding Test)

Hydrostatic Test

Mechanical Properties Test

Ultrasonic Testing (UT)

Packaging and Delivery

• Grade 2 welded titanium tubes are packed with attention to weld-seam protection, dimensional consistency, and tube straightness during handling and loading.

• During packing, tubes are grouped by diameter and length, then secured to minimize bending, ovality, or distortion. Long-length welded tubes are supported at multiple points along their length to maintain straightness and protect weld quality during transportation.

• Protective sleeves, spacers, or surface wrapping are applied as required to prevent mechanical damage and contact between tubes, particularly for thin-wall or large-diameter welded tubing.

• Transportation arrangements are selected based on tube length, bundle configuration, and destination requirements to ensure safe delivery without compromising dimensional stability.

Custom Titanium Welded Tube Gr2 quotation

FAQ - Grade 2 Welded Titanium Tube

Q1: What are the main differences between welded titanium tubes and seamless titanium tubes?

A1: Welded tubes are formed from flat-rolled titanium strip and joined along a longitudinal seam, while seamless tubes are produced from hollow billets. Welded tubes are often selected for dimensional consistency, thin walls, and project-specific lengths. Final selection depends on pressure, fabrication, inspection, and service conditions.

Q2: What material grades are commonly used for welded titanium tubes?

A2: In heat exchange and cooling systems, Gr2 titanium welded tubes are the most common.
This grade offers a good balance between strength, formability, and corrosion resistance, making it suitable for continuous industrial heat exchange and cooling applications.

Q3: What quality control tests are typically performed on welded titanium tubes?

A3: Routine testing includes:

Chemical composition analysis
Dimensional and visual inspection
Non-destructive testing of welds
Mechanical property verification

The testing items can be adjusted according to the application level and project requirements.

Q4: Will the weld seams of welded titanium tubes affect their corrosion resistance?

A4: A weld seam does not automatically reduce corrosion resistance, but its performance depends on strip quality, welding parameters, shielding, post-weld treatment, surface condition, and inspection. The working medium and operating temperature should also be reviewed.

Q5: Do you accept small-batch trial orders?

A5: Trial quantities can be reviewed according to tube size, length, testing requirements, and current material availability.