Frequently Asked Questions
What are special-shaped stainless steel tubes?
Special-shaped (non-round) stainless steel tubes include hexagonal, D-shaped, elliptical, triangular, and fully custom profile tubes manufactured by cold drawing through custom dies from round tube preforms.
What profiles can TeCarve supply as special-shaped tube?
Our partner factories produce hexagonal, oval, D-shape, flat-sided oval, semi-circular, triangular, and fully custom cross-section tubes. Complex profiles are drawn to customer CAD drawings; tooling (die) investment is required for new custom profiles.
What grades are available for special-shaped stainless steel tube?
Special-shaped tubes are produced in grades 304, 304L, 316, 316L, and 321. The cold-drawing process improves dimensional accuracy and mechanical properties compared to standard welded round tube.
What is the minimum order quantity for custom-profile stainless steel tube?
For custom-profile stainless steel tube, TeCarve supports flexible trial orders starting from 100–300 kg depending on profile complexity, with first-article prototype samples available for dimensional and fitment validation before committing to full-scale production.
What industries use special-shaped stainless steel tube?
Applications include medical device shafts (D-profile catheter tubes), automotive trim and structural inserts, hexagonal lock cylinders, architectural handrail components, and specialty fluid handling systems requiring non-circular bore cross-sections.

