PRECISION STEEL TUBES
PESSINA TUBI (MI)
Pessina Tubi, based in Sesto San Giovanni, is an important reference for the supply ofprecision steel pipes.
These products represent an essential component for contemporary industry because they allow the creation of high-precision systems, circuits and mechanisms, exploiting the optimal connection and sealing characteristics that these artifacts make available.
The production of precision steel pipes must follow different procedures depending on the intended use and it is generally necessary to use steels suitable for welding.
Contact us to request a supply ofprecision steel pipes.
TYPES OF STEEL
For the supply of precision steel pipes in Milan and the rest of Italy, we use unalloyed steel that must have the characteristics listed below.
The steels in this table are suitable for welding with the exception of Fe55 steels.
When analyzing the finished product, the deviations foreseen by the EN10216-1 standard (formerly UNI 663/68) must be taken into account.
CHEMICAL COMPOSITION

MECHANICAL CHARACTERISTICS

The value of the unit yield strength must be:
- for raw pipes not less than 80% of the value of the unit tensile breaking load,
- for semi-hard pipes, not less than 70% of the value of the unit tensile breaking load.
* Approximate values.
** A maximum limit of 47 kgf/mm2 for the unit tensile breaking load cannot give rise to disputes
TESTING - Testing is usually carried out only for higher class pipes in accordance with the provisions of the standard
NEW EUROPEAN ACRONYMS - EN
GRADES AND INDICATIVE CORRESPONDENCES WITH THE STANDARDS
Products according to EN 10216-1 (EX UNI 663/68 and DIN 2391- DIN 1630)
Tolerances according to EN 103015-1 (EX UNI7945)
Certified according to EN 10204/3.1 (EX DIN 50049/3.1.B and UNI EN 10204/3.1.B)

CHEMICAL ANALYSIS %

CONDITIONS OF SUPPLY

MECHANICAL CHARACTERISTICS
