Grade 1 Titanium Tube

Key Characteristics of GR1 Titanium Tubes

Commercially pure titanium: Grade 1 is an unalloyed titanium grade with controlled levels of oxygen, iron, carbon, nitrogen, and hydrogen.

High ductility: Its relatively low strength and high elongation make it suitable for forming and bending operations.

Corrosion resistance: Provides good resistance in many oxidizing environments, including seawater under suitable service conditions.

Low density: Approximately 4.51 g/cm³, making it significantly lighter than many conventional engineering metals.

Good weldability: Can be welded using qualified titanium welding procedures with appropriate atmospheric protection.

Multiple product forms: Available as seamless or welded tubing depending on the applicable standard and manufacturing capability.

 

Grade 1 titanium is an unalloyed titanium material. Its properties are influenced by the controlled content of interstitial elements and impurities, particularly oxygen, iron, nitrogen, carbon, and hydrogen.

The following table shows the typical maximum chemical composition limits associated with Grade 1 titanium under commonly used ASTM product specifications. The applicable product standard and edition should be checked when preparing a purchase order.

Element	Symbol	Maximum Content (Weight %)
Nitrogen	N	0.03
Carbon	C	0.08
Hydrogen	H	0.015
Iron	Fe	0.20
Oxygen	O	0.18
Titanium	Ti	Balance

 

When purchasing GR1 titanium tubes, buyers should check:

Whether the material is certified as Grade 1 / UNS R50250.

Whether chemical composition meets the specified ASTM product standard.

Whether the heat number on the tube or package matches the Mill Test Certificate.

Whether the material certificate provides traceable chemical analysis results.

 

Grade 1 titanium has lower tensile and yield strength than Grade 2 titanium, but it provides higher elongation and better formability.

The following values are commonly specified minimum mechanical requirements for Grade 1 tubing under ASTM B338. Actual acceptance requirements must be checked against the applicable standard edition and product form.

Mechanical Property	Requirement
Tensile Strength	Min. 240 MPa
Yield Strength (0.2% Offset)	Min. 138 MPa
Elongation	Min. 24%
Density	Approx. 4.51 g/cm³
Melting Point	Approx. 1,668°C

 

GR1 titanium tubes can be manufactured in different outside diameters, wall thicknesses, and lengths according to the product standard, manufacturing method, and order requirements.

 

 Product Specifications

Specification	Product Information
Product Name	Grade 1 Titanium Tube
Alternative Names	GR1 Titanium Tube / Gr.1 Titanium Tube
Material Grade	Grade 1
UNS Number	R50250
Material Type	Commercially Pure Titanium
Product Forms	Seamless Tube / Welded Tube
Heat Exchanger Tube Standard	ASTM B338
Seamless Titanium Pipe Standard	ASTM B861
Welded Titanium Pipe Standard	ASTM B862
Density	Approx. 4.51 g/cm³
Dimensional Description	Outside Diameter × Wall Thickness × Length
Inspection Documentation	MTC and agreed inspection records

 

GR1 Titanium Tube Size Range

The following is an indicative manufacturing reference range for initial inquiries, not a guaranteed production or stock range. Actual dimensions depend on the manufacturing process, material condition, applicable standard, and production equipment.

Dimension	Indicative Reference Range
Outside Diameter (OD)	3–114.3 mm
Wall Thickness (WT)	0.5–11 mm
Tube Length	Up to approximately 18,000 mm for suitable cold-reduced products
Product Form	Straight Seamless Tubes
Special Dimensions	Subject to technical review and production feasibility

For larger diameters or heavier walls, buyers should provide the required dimensions and application details for a separate manufacturing review. Welded tube dimensions may follow a different production range.

Request Customized GR1 Titanium Tube Sizes

 

Grade 1 titanium is available in different tube manufacturing forms, including seamless and welded products. The choice depends on the applicable standard, equipment design, dimensional requirements, and inspection conditions.

Comparison Item	GR1 Seamless Titanium Tube	GR1 Welded Titanium Tube
Manufacturing Method	Produced from titanium billet through piercing and subsequent tube processing	Formed from titanium strip or sheet and joined by longitudinal welding
Longitudinal Weld	No longitudinal weld seam	Contains a longitudinal weld seam
Main Quality Focus	Material properties, dimensions, and tube integrity	Material properties, dimensions, and weld integrity
Typical Standard	ASTM B338 / ASTM B861, depending on product	ASTM B338 / ASTM B862, depending on product
Inspection Focus	Dimensional, mechanical, and specified integrity tests	Dimensional, mechanical, and specified weld inspection
Selection Factors	Design requirements, dimensions, pressure, and applicable standard	Design requirements, weld qualification, inspection, and applicable standard

When Should Buyers Choose GR1 Seamless Tubes?

Seamless Grade 1 tubes may be selected when:

The project specification explicitly requires seamless construction.

The equipment design does not permit longitudinal welded tubing.

The required dimensions can be manufactured through the available seamless production route.

The applicable standard specifies seamless tubing or pipe.

 

When Should Buyers Choose GR1 Welded Tubes?

Welded Grade 1 tubes may be considered when:

The applicable product standard permits welded construction.

The tube dimensions and mechanical requirements can be achieved.

The welding process and inspection requirements meet project specifications.

The buyer accepts the specified weld inspection and documentation.

For condenser and heat exchanger applications, ASTM B338 covers both seamless and welded titanium tubes. The buyer should still confirm any additional project restrictions before selecting the manufacturing method.

 

Other Grade 1 Titanium Tube Configurations

Product Type	Main Characteristics	Potential Applications
GR1 Straight Titanium Tube	Fixed or specified straight length	Heat exchangers, process equipment
GR1 Thin-Wall Titanium Tube	Reduced wall thickness for weight and space requirements	Heat transfer equipment, lightweight assemblies
GR1 Small-Diameter Titanium Tube	Compact OD for precision assemblies	Instruments and specialized equipment
GR1 Precision Titanium Tube	Tighter dimensional and surface requirements by agreement	Precision equipment
GR1 Coiled Titanium Tubing	Continuous or long-length configuration, subject to manufacturing feasibility	Specialized fluid and heat transfer systems
GR1 Polished Titanium Tube	Improved surface appearance or specified finish	Equipment and visible assemblies

 

Grade 1, Grade 2, Grade 3, and Grade 4 are commercially pure titanium grades with different strength and ductility characteristics.

Grade	UNS Number	Relative Strength	Main Characteristics	Typical Selection Consideration
Grade 1	R50250	Lowest	Highest ductility among common CP grades	Forming and bending requirements
Grade 2	R50400	Higher than Grade 1	Balanced strength and corrosion resistance	General industrial applications
Grade 3	R50550	Higher than Grade 2	Higher strength with reduced ductility	Higher mechanical strength requirements
Grade 4	R50700	Highest among these four grades	High strength, lower formability	Applications requiring greater strength

 

Is Grade 1 Better Than Grade 2 Titanium?

Neither grade is universally better. They are selected for different mechanical requirements.

 

Choose Grade 1 when:

Higher ductility is important.

The tube requires forming or bending.

The design allows for its lower minimum strength.

The operating environment is suitable for Grade 1 titanium.

 

Choose Grade 2 when:

Higher tensile and yield strength are required.

The application needs a stronger commercially pure titanium grade.

The equipment design benefits from Grade 2's higher strength.

 

For heat exchanger and condenser projects, the final selection should consider the applicable tube standard, wall thickness, design conditions, and tube-to-tubesheet connection requirements.

 

Grade 1 vs. Grade 3 Titanium Tube

Grade 3 provides higher strength than Grade 1 but has lower ductility. It may be considered when the design requires greater mechanical strength and the manufacturing process can accommodate its forming characteristics.

 

Grade 1 vs. Grade 4 Titanium Tube

Grade 4 is the strongest of the four commonly referenced commercially pure titanium grades. It is selected when strength is a more important design factor than the high formability associated with Grade 1.

 

Grade 1 titanium tubing is used in industrial systems where corrosion resistance, formability, and low weight are important. Its suitability depends on the actual chemical medium, temperature, flow conditions, and mechanical design.

 

The applicable standard depends on the tube or pipe product form and its intended service.

Standard	Product Scope	Relevant Use
ASTM B338	Seamless and welded titanium and titanium alloy tubes for condensers and heat exchangers	Heat exchanger, condenser, and evaporator tubing
ASTM B861	Seamless titanium and titanium alloy pipe	General corrosion-resisting and elevated-temperature service
ASTM B862	Welded titanium and titanium alloy pipe	General corrosion-resisting and elevated-temperature service
ASTM F67	Unalloyed titanium for surgical implant applications	Implant material product forms specifically listed in the standard

 

Surface condition can affect appearance, corrosion performance, cleanliness, and subsequent fabrication.

Surface / Condition	Description	Common Consideration
Annealed	Supplied in an annealed condition where specified	Formability and mechanical properties
Pickled	Surface oxide and scale removed by chemical treatment	Clean metallic surface
Ground	Surface material removed mechanically	Surface defect removal and dimensional control
Polished	Surface finish improved by mechanical or other specified processes	Appearance or surface requirements
Bright / Finished Surface	Surface condition defined by the manufacturing route and purchase specification	Visual and application requirements

 

Pickled Titanium Tube

 

Inspection Item	Inspection Content
Chemical Composition	Verification of N, C, H, Fe, O, Ti and other specified elements
Tensile Test	Tensile strength, yield strength, elongation
OD Measurement	Outside diameter measurement
Wall Thickness Measurement	Wall thickness at specified locations
Length Measurement	Overall tube length
Ovality Check	Maximum and minimum OD comparison
Straightness Check	Straightness over specified length
Surface Inspection	Scratches, cracks, dents, scale, and other defects
Weld Seam Inspection	Weld appearance and specified seam examination
NDT	Applicable non-destructive examination where required
Hydrostatic / Other Tests	Tests required by the applicable standard and purchase order

Titanium tubes should be protected during handling, storage, and transportation to reduce surface damage, contamination, and deformation.

Typical packaging considerations include:

Protective caps or suitable end protection where required

Plastic wrapping or protective materials

Bundling by size and material grade

Clear labels showing grade, dimensions, quantity, and batch identification

Suitable wooden cases or export packaging for shipment

Protection against impact and surface abrasion

For long-distance export orders, packaging should be selected according to tube length, wall thickness, transportation method, and handling requirements.

Before shipment, buyers can specify labeling requirements, packing lists, material traceability, and any project-specific export documentation.

Hot Tags: grade 1 titanium tube, China grade 1 titanium tube manufacturers, suppliers, factory, titanium, Titanium Gr2 Alloy Pipe, Titanium Pipe Welding, Gr9 Titanium Tube, Titanium Flex Pipe, Gr5 Titanium Straight Piping, Gr23 Titanium Tube