Precision steel pipes are an essential component for modern industry, because they allow the construction of precision installations, circuits and mechanisms, taking advantage of the optimal fitting and sealing characteristics that these products make available.
The production of precision steel pipes must moreover follow different procedures depending on their intended use and are generally created through the use of steels that are suitable for welding.
The pipes must be made of non-alloy steel and have the properties listed below.
The steels in this report are suitable for welding with the exception of steel Fe55.
In the analysis of the finished product, you will have to take account of deviations provided for in norm EN10216-1 (ex UNI 663/68).
The yield strength value must be:
- for soft pipes, not less than 80% of the unified tensile stress load value
- For half-hard pipes, not less than 70% of the value of the unified tensile stress load value.
* Approximate values.
** A maximum limit of 47 kgf/mm2 for the unified tensile stress load value cannot give rise to disputes
TESTING- Tests are carried out, as a rule, only for the upper class of pipes in accordance with the standard's provisions
DEGREES AND INDICATIVE MATCHES WITH THE RULES
Produced according to EN 10216-1 (EX UNI 663/68 DIN 2391 and DIN 1630)
Tolerances in accordance with 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)