Pie Cut S Bend Exhaust Pipe Stainless Steel TIG Welded for Custom Exhaust | HEYA METAL

A: Each batch is inspected according to the agreed drawing and quality requirements. Inspection includes 3D laser scanning for shape verification, wall-thickness inspection, pressure leak testing and 100% dimensional inspection before delivery. For products with specific requirements, additional inspection items can also be discussed. Production takes place in our ISO 9001 and IATF 16949 certified facility.

A: Yes. Pressure leak testing is included in the standard inspection process for these tubes before delivery. The test method and acceptance criteria can be specified according to the application or customer's requirements.

A: Clamp-on designs use a clamp to secure the tip without welding or permanent modification, while bolt-on designs use dedicated bolts or brackets for mechanical fastening. Weld-on creates a permanent connection and requires welding equipment or a professional workshop.

A: MOQ is negotiable and depends on the product design and forming process. Lead time also depends on the complexity of the shape, tooling requirements and order quantity, so we confirm it after reviewing the drawing. Samples or first articles can be arranged for fit and dimensional confirmation before batch production. For custom parts, tooling and sample costs will be confirmed separately before production.

A: A hydroformed tube is formed as one piece instead of being assembled from multiple cut and welded sections. The tube blank is placed in a die and formed from the inside by high-pressure fluid, allowing complex and irregular profiles to be produced in an integrated forming process. This can reduce welding joints, provide a smoother inner surface and help achieve shapes that are difficult to make by conventional bending and welding. For simple straight or single-bend parts, a conventional fabricated tube may be more practical.