Description
xGrade 2 Titanium Tube: Exhaust Tubing, 30-114mm
Grade 2 titanium exhaust tube built for performance fabrication. Supplied from 30.0 to 114.0 mm outside diameter in a lightweight 1.2 mm thin wall, this annealed, weld-ready titanium tubing is cut to length for downpipes, headers, collectors, intercooler and charge piping, high-flow intakes and performance vehicle exhaust systems.
What Is Grade 2 Titanium Exhaust Tube?
Grade 2 titanium tube is made from commercially pure titanium and has become a preferred material in performance exhaust work. It combines useful high-temperature strength with outstanding formability and weldability, resists road salt and atmospheric corrosion, and weighs only 4.51 g/cm³ — about 43% lighter than common stainless exhaust tubing. In a 1.2 mm wall, 30–114 mm sections deliver free-flowing exhaust-gas paths, a crisp titanium note and the signature heat-tint finish that develops in service.
Why Titanium for Performance Exhaust
Lightweight 1.2 mm Thin Wall
Cuts system weight versus steel exhaust tubing and removes mass from the vehicle’s hottest, most restrictive zones.
High-Temperature Service
Withstands the heat of exhaust-gas and charge-air circuits while resisting oxidation and surface scaling.
Crisp Titanium Exhaust Note
Thin, rigid walls produce the distinctive, sharp tone associated with titanium performance systems.
Weld-Ready Annealed Temper
Fully annealed for clean TIG welding, mandrel bending, expanding and collector forming without cracking.
Salt and Corrosion Resistance
Handles winter road salt, coastal humidity and internal condensation for long cosmetic and structural life.
Signature Heat-Tint Look
Polished or brushed surfaces develop gold, blue and purple heat tints for a premium, race-bred appearance.
Manufacturing and Quality Control
Seamless and Welded Exhaust Tube
Exhaust-grade Grade 2 titanium tube is supplied seamless or with a smooth longitudinal weld. Seamless lengths offer maximum wall uniformity for heavily formed headers and merge collectors, while welded and fully annealed tube gives a consistent, economical option across the larger diameters used in downpipes and truck systems.
Condition, Finish and End Preparation
Annealed for Bending and Welding
Every length ships fully annealed, so it takes tight mandrel bends, stepped transitions and TIG welds with predictable behavior.
Surface Finishes
Pickled and annealed, brushed, mechanically polished or bright finishes are available; all develop natural heat tints as the system reaches operating temperature.
Inspection and Traceability
Dimensional and Surface Inspection
Each length is checked for straightness, surface condition and clean, open bores before packing.
Weld Integrity
Welded lengths undergo eddy-current or ultrasonic weld inspection along the full seam.
Batch Documentation
Heat and lot traceability and an EN 10204 3.1 mill test certificate are available for every production batch.
Technical Specifications
Dimensional Range
| Material | Grade 2 commercially pure titanium |
|---|---|
| Applicable standard | ASTM B337 / ASME SB-337 |
| Outside diameter | 30.0–114.0 mm (approx. 1.2–4.5 in; covers common 2 / 2.5 / 3 / 3.5 / 4 in sizes) |
| Wall thickness | 1.2 mm thin wall |
| Construction | Seamless; longitudinal welded and annealed |
| Condition | Annealed, weld-ready |
| Length | Cut to length; straight supply |
| Ends | Deburred, square-cut; beveled weld ends on request |
| Surface | Pickled and annealed / brushed / polished / bright |
| Certification | EN 10204 3.1 mill test certificate |
For corrosion-service industrial process lines and marine systems, see our medium-diameter Grade 2 titanium tube. Browse all Grade 2 titanium tubing.
Mechanical and Physical Properties
| Tensile strength | ≥ 345 MPa (50 ksi) |
|---|---|
| Yield strength, 0.2% offset | ≥ 275 MPa (40 ksi) |
| Elongation | ≥ 20% |
| Hardness | 80 HRB max |
| Density | 4.51 g/cm³ (about 43% lighter than stainless exhaust tubing) |
| Melting point | approx. 1665 °C |
| Modulus of elasticity | approx. 105 GPa |
| Thermal conductivity | approx. 16.4 W/(m·K) |
| Thermal expansion coefficient | approx. 8.6 µm/(m·°C) |
Available Forms
Straight Cut Lengths
Fixed straight lengths cut to order, deburred and ready for the fabrication bench.
Mandrel-Bend-Ready Stock
Annealed 1.2 mm wall optimized for smooth mandrel bends without wrinkling or flattening.
Fabricated Sections
Reducers, stepped transitions, merge-collector sections and pre-formed parts produced from drawing.
Applications
Automotive Exhaust Systems
Build cat-back and axle-back systems, muffler shells and cans, tailpipes and full titanium exhaust lines that stay light and develop a premium heat-tinted finish.
Downpipes and Headers
The 30–114 mm range supports turbo downpipes, exhaust headers and merge collectors requiring smooth bends, leak-free TIG joints and high-temperature durability.
Intercooler and Charge Piping
Form rigid intercooler pipes, charge pipes and boost tubes that handle heated compressed air while saving weight across the engine bay.
High-Flow Intake Systems
Fabricate large-flow cold-air intakes, intake tubes and air-box connections with a smooth bore for unrestricted inlet airflow.
Performance Cars, Pickups and Trucks
Diameters up to 114 mm deliver the flow capacity needed for high-power performance cars, pickups and truck exhaust systems.
Industrial Ventilation
The same corrosion-resistant tubing serves workshop industrial ventilation, hot-air extraction, welding fume removal and aggressive-fume ducting where ordinary steel would degrade.
Value-Added Fabrication
- Fixed-length cutting with square or beveled weld ends
- Mandrel bending and tight-radius forming
- Stepped expanding, reducing and transition forming
- Merge-collector and junction forming
- Drilling for sensor bungs and mounting points
- Brushing, polishing and bright finishing
- Protective export packaging for straight lengths
Why Choose RapidKeen Grade 2 Titanium Tube
- Dedicated 30–114 mm exhaust range in a consistent 1.2 mm wall
- Annealed and weld-ready for TIG work straight from the box
- Covers the common 2–4 inch performance exhaust diameters
- Heat and lot traceability with mill documentation
- One-off prototype sections through batch production
- Export-ready protective packaging for international delivery
Frequently Asked Questions
Is 1.2 mm wall Grade 2 titanium tube good for exhaust use?
Yes. A 1.2 mm annealed wall is a standard lightweight choice for titanium downpipes, headers and cat-back systems: it is light enough for a crisp note and responsive throttle, yet ductile for mandrel bending and TIG welding.
What exhaust diameters does the 30–114 mm range cover?
It spans roughly 1.2 to 4.5 inches, covering the common 2, 2.5, 3, 3.5 and 4 inch performance exhaust sizes, supplied cut to the exact lengths required.
Can it be mandrel bent and TIG welded?
Yes — supplied fully annealed, the tube bends cleanly on mandrel tooling and welds with standard titanium TIG practice; square or beveled weld ends can be prepared before shipment.
Seamless or welded tube — which is better for a header or downpipe?
Both are used. Seamless tube gives maximum wall uniformity for heavily formed headers and collectors, while welded and annealed tube is a consistent, cost-effective choice for downpipes and larger-diameter sections; every weld seam is inspected.
Shipping & Return
xReturns Policy
You may return items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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