Your reliable supplier of precision steel tubes from Türkiye
At our plant in Hasanağa OIZ, Bursa, we manufacture cold-drawn welded and seamless precision steel tubes in diameters from 10 to 80 mm to EN 10305-1 and EN 10305-2. Crack detection, tensile and hardness testing on every lot secure the dimensional accuracy the automotive and machinery industries expect.
Why Sezer Boru?
In our 3,000 m² covered plant, our team of 15 produces with an annual capacity of 400 tonnes. We control every stage in-house, from sourcing the raw material to shipping, and deliver every order to drawing and standard.
- 10–80 mm
- Diameter range
- 3 tests
- Crack detection, tensile, hardness
- St-37 (E235) / St-52 (E355)
- Steel grades
- 2023
- Founded
Our customers
Some of the companies that rely on our precision steel tubes.
Our products
All product details →| Product | Diameter range | Grade | Standard | Additional operations | |
|---|---|---|---|---|---|
| Welded precision tube Cold-drawn from welded mother tubes. Ideal where dimensional accuracy has to be balanced against cost. |
10 – 80 mm | St-37 (E235), St-52 (E355) | EN 10305-2 | Straightening, cutting, end finishing, forming | Quote → |
| Seamless precision tube Cold-drawn from seamless mother tubes. The choice for pressurised parts and components that need high strength. |
10 – 80 mm | St-37 (E235), St-52 (E355) | EN 10305-1 | Straightening, cutting, end finishing, forming | Quote → |
Wall thickness: 1 – 7 mm. Tubes are cut to your drawing with a length tolerance of ±0.1 mm.
From raw material to finished part
We check dimensions and quality at every step of our six-stage process, so your tubes arrive ready to assemble and true to your drawing.
- 01SourcingSelection and incoming inspection of certified mother tubes.
- 02Cold drawingSizing of diameter and wall thickness with precision dies.
- 03StraighteningStraightness through rotary straightening.
- 04CuttingCNC cutting to length within ±0.1 mm.
- 05End finishingChamfering and countersinking to drawing.
- 06FormingFlaring, bulging and similar operations.
Our quality commitment
Before shipping, every tube we make passes three core tests in our own laboratory. Test reports and material certificates are supplied with the order on request.
Get a quote
Send us diameter, wall thickness, material and length, and our technical team will get back to you with a price quote as soon as possible.