Certifications SIFEA

The Quality System

The Quality System adopted at S.I.F.E.A., since its inception, has increasingly become an integral part of the life of the Company, being closely linked to the experience and professionalism developed in all these years.

The brilliant results have come thanks to a careful management of all the resources, economic and human, and the ability to solve the many market problems. All this is faced with the constant improvement of production by virtue of the investments that keep the company in line with technological development: it has been investing for years in the constant maintenance of the plants, but also in the training of technicians, and in compliance with the laws on safety and hygiene at work.

The certification of the Quality System is a further confirmation of the commitment made by S.I.F.E.A., and demonstration that the efforts and orientation to the quality of the Company have found full confirmation at the regulatory level.


For the welding processes S.I.F.E.A. is certified with the following procedures:
  • Submerged and manual arc according to the European regulation UNI EN 288/3 which includes a range of thicknesses from 5 to 90 mm with a stress relieving heat treatment and standardization with regard to ferritic steels, and a range of thicknesses between 5 and 70 mm for austenitic steels.
  • Manual mixed procedure - submerged arc
    Welding procedure according to ASME IX from 6 mm to 40 mm without heat treatment and from 6 to 22 mm with standard heat treatment (ASME II - SA 516-70 W.P.Q.R. TO ASME IX) - Lloyd's Register

A station equipped for welding special materials is always available, with the possible intervention of external welders.

Special qualifications

Since 1982 S.I.F.E.A. is certified for head forming according to German TUV regulations with material HI and HII Din 17155 or P235GH and P265GH EN 10029-2, with austenitic steels and other non-alloy steels with tensile strength not exceeding 520 N/mmq.

Since 2002 S.I.F.E.A. is awarded with the Corporate Quality System Certification mark ISO 9002: 1994 "Production of heads for atmospheric and pressure devices", homologation with TUV.