Titanium Grade 9 Welded Tube
Titanium Grade 9 Welded Tube suppliers

Titanium Grade 9 Welded Tube

Name: China Titanium Grade 9 Welded Tube Manufacturers Suppliers Factory - Ruihang Elaborate Materials
Brand: Ruihang
SKU: 296244131

Product Name: Titanium Welded Tube
Grade: Grade 9, TA18
Main Material: Ti-3Al-2.5V
Common conditions: Annealed (M)
Welding Method: automatic GTAW (TIG)
Standard: ASTM B338, ASTM B862, ASME SB-862
Surface Finish: Bright annealed or pickled

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Description

Technical Parameters

Introduction

Grade 9 is a near-α/α-β titanium alloy, with far higher strength than commercially pure titanium while retaining excellent cold formability and weldability.

Titanium Grade 9 welded tube is a lowalloy, highstrength titanium tube made by forming titanium strip and welding via continuous GTAW, then annealed. It balances strength, ductility, and corrosion resistance.

Chemical Composition

Element	Al	V	Fe	C	O	N	H	Ti
Content(wt.%)	2.5–3.5	2.0–3.0	≤0.25	≤0.08	≤0.15	≤0.03	≤0.015	Balance

Mechanical Properties (Annealed)

Property	Typical Value
Tensile Strength	≥795 MPa (115 ksi)
Yield Strength (0.2% offset)	≥725 MPa (105 ksi)
Elongation (in 50 mm)	≥10%
Modulus of Elasticity	105 GPa
Density	4.47 g/cm³

Manufacturing Process Flow

Mill-rolled Ti-3Al-2.5V strip (to ASTM B265) → slitting to width

Forming into round profile on a tube mill

Continuous GTAW with filler metal (ER Ti-3Al-2.5V) as needed, full argon back-purging

Online/post-weld annealing (controlled atmosphere furnace)

Sizing, straightening, cutting to length

100% hydrostatic pressure test, X-ray inspection of weld seam, eddy current/ultrasonic testing

Surface passivation, cleaning, packaging

High quality

advanced equipment

professional team

one-stop solution

Welded vs Seamless Grade 9 Tube

Aspect	Welded Tube	Seamless Tube
Cost	Lower, especially for larger OD/longer lengths	Higher, better for high-pressure critical service
Dimensional Consistency	Superior, uniform wall thickness	Good but with minor variations
Availability	Easier for custom sizes/coils	Standard sizes more common
Pressure Rating	Suitable for moderate pressure; limited by weld	Higher pressure ratings, preferred for ASME Section VIII vessels

Our Company

Ruihang Elaborate Material Co., Ltd mainly manufatures Titanium and Titanium Alloy products with the complete industry chain in the domestic tititanium industry. We are a technology enterprise integrating R&D, production and sales into an integrated system.

Location Advantage & Service

Based in Baoji ("China's Titanium Valley") with concentrated titanium industry and complete industrial chain
Competitive price & reliable after-sales service guaranteed by industrial cluster advantage, high production efficiency and yield rate

Quality Assurance

Certified with EN ISO 9001:2015 & EN 9100:2018 (for European aerospace products) by French BV in 2025
In-house testing center with 10+ advanced instruments (N/O analyzer, tensile testing machine, etc.)
Strict quality control ensures all products meet customer requirements

product-619-876 product-614-868

FAQ

Q: What are typical applications?

A: Aerospace: hydraulic lines, fuel systems

Marine & offshore: seawater cooling, desalination

Heat exchangers & condensers

Chemical processing: corrosive fluid piping

Sports equipment: bicycle frames, high-performance parts

Q: Is the weld as strong as the base metal?

A: After proper welding and full annealing, the weld zone achieves mechanical properties close to the base metal and meets standard requirements for most applications.

Q: What should be noted during welding & installation?

A: Use high-purity argon for back purging

Avoid iron/steel contamination

Use dedicated tools

Remove oxide discoloration after welding to preserve corrosion resistance

Q: What is the working temperature range?

A: Suitable for longterm service up to approximately 315°CShortterm higher temperature is possible but depends on environment and load.