4in Titanium Pipe
We are a direct titanium tubing manufacturer from China, specializing in supplying ASTM B861 4 inch titanium pipe and widely in titanium exhaust pipes, titanium intake pipes, high‑performance racing cars, modified vehicles and motorcycle exhaust systems.
✅ Premium commercially pure Grade 1 (CP1):Easy to Bend & Form with excellent ductility, easy bending and forming for complex exhaust layouts.
✅ Full Size Range Available:With 2inch titanium pipe, 2.5inch titanium pipe, 3inch titanium pipe, 5inch titanium pipe for option
✅ Superior Weldability :Smooth & consistent welds, clean weld seams with stable performance, ensuring reliable exhaust system integrity.
✅ Lightweight & High Strength :Significantly lighter than steel/stainless steel while maintaining high tensile strength and excellent heat resistance, ideal for high performance applications.
✅ Custom Cut Service: Cut with burr‑free ends and tight ovality tolerance
✅ Full Documentation Provided:Complete certification package including MTC, chemical/mechanical test reports and ISO certifications for full traceability.
✅ Factory Direct Supply & Customization:Stable production capacity, custom lengths and specifications available, competitive bulk order pricing.
- Specification
| Item | Details |
| Size | 4 inch (4in) |
| Outer Diameter | 101.6 mm |
| Material Grade | Titanium Gr1 / Gr2 |
| Standard | ASTM B338 (Seamless), ASTM B861 (Welded) |
| Wall Thickness | 1.2mm/Sch10 / Sch40 / Sch80 / Custom |
| Length | 1–6 m / Cut to size |
| Surface | Pickled / Polished |
| Certificate | MTC, ISO 9001, CE, SGS |
| Application | Vehicle Exhaust & Intake System,Turbo Downpipes, Mid-Pipes, and Rear exhaust systems for Supercars (such as Lamborghini and Ferrari), Heavy-Duty Pickup Trucks (such as diesel pickup exhaust upgrades), and Race Cars |

Manufacturing & Quality Control
- Raw Material:We solely adopt Grade 0 high-purity titanium sponge as raw stock, guaranteeing premium intrinsic material performance.
- Welding Process:Automatic TIG argon shield welding is applied. Weld strength perfectly matches base metal, free from leakage and material embrittlement.
- Vacuum Furnace Annealing:Internal stress gets fully eliminated after treatment, preventing cracking during complex bending and high-pressure working scenarios.
- Non-Destructive Testing:100% eddy current and ultrasonic inspection cover the entire pipe body, securing sound structural integrity of 4 inch titanium pipe.
- Hydrostatic Pressure Test:Each batch is conducted strictly in accordance with ASTM specifications. Our 4inch titanium pipes maintain excellent leakproof performance even under harsh extreme operating conditions.
About Our Factory
- With over 10 years of specialized titanium tube manufacturing experience, not only titanium pipe, we also provided titanium products, such as:Titanium Elbow, Titanium Flange, Titanium V band with ISO 9001:2015, CE, and SGS certifications
- Every 4-inch titanium pipe undergoes 100% Non-Destructive Testing (NDT), including Ultrasonic (UT) and Eddy Current (ET) inspection, ensuring zero surface defects and perfect structural integrity. We guarantee 100% material traceability, providing an EN10204 3.1 Mill Test Certificate (MTC) with every shipment.
- Flexible OEM & ODM Solutions : Including custom wall thicknesses, specialized bending radii, and precision laser marking for automotive exhaust brands or industrial engineering request.
- Competitive Advantage of Titanium Supply Chain:Competitive factory-direct pricing and professional technical support without compromising on performance. Our facility is optimized for stable delivery cycles, ensuring your projects stay on schedule.

4inch Titanium Pipe VS Stainless Steel Pipe VS Aluminum Pipe
Strength: Titanium > Stainless steel > Aluminum
Service life: Titanium lasts far longer with stable anti-corrosion property
Flexibility: Titanium is easier to bend and process for customized piping layout
- 4inch titanium pipe features lighter weight and superior heat resistance. Its surface can form attractive blue-purple oxide color after high-temperature use, delivering distinctive visual effect.
- Stainless steel pipe weighs much heavier, bringing extra load to vehicle body. Its heat endurance is inferior to titanium, and surface lacks unique discoloration aesthetic.
- Aluminum pipe has low melting point, poor high-temperature resistance. It is easy to deform and damage under long-time high heat working condition, not suitable for high-power racing and heavy-load exhaust scenarios.
Gr1 and Gr2 are both commercially pure titanium grades,Gr1 has lower oxygen content, softer and more ductile and easy to bend, Gr2 titanium pipe has strong strength and is less prone to deformation.
Yes, we could provide MTC for all titanium pipe order.
Welded titanium pipe is more competitive on cost.
Yes, we could customize seamless 4inch titanium pipe accordingly.
4 inch titanium pipe outer most common thickness is 1.2 mm.













