Welding technicality

With a real Technical Department, STS can rely on its IWT Technicians, its IWE Welding Engineer, and its qualified welders on any welding processes, to meet all of your requirements. STS has more than 550 welding procedure qualifications and a production machinery to manufacture your tailor-made projects.

Control activity organization

  • 1 IWE Welding Engineer
  • 2 IWT Welding Technicians
  • 12 qualified welders on any welding processes, according to EN9606-1 and ASME IX

Know-how

  • 117 welding procedure qualifications, according to EN 15614-1
  • 264 welding procedure qualifications, according to EN 288-2
  • 122 welding procedure qualifications, according to ASME IX

Other know-how

  • CODAP
  • CODETI
  • ASME VIII div.1
  • RCC-M
  • Customers specifications (General Electri, EDF, Total Shell…)

Operating temperature of equipement that we manufacture

  • From -196°C to + 800°C

Worked thicknesses

  • From 1mm to 100mm

Used materials

  • Non-alloy steels (type C-Mn) : P265, P280, P295, SA516Gr70, SA516Gr60, SA333Gr6, SA106, S235, S275, S355
  • Creep resistant steels (type Cr-Mo) : 13CrMo4-5, 10CrMo-10
  • Austenitic stainless steels : 304L, 316L, 321, 316Ti, 254SMo, URANUS S1
  • Refractory stainless steel : 310
  • Ferrictic saintless steel : X6Cr13 (410S)
  • Austeno-ferritic stainless steel (duplex) : 1.4462
  • Nickel alloys : Alloy 600, Alloy 800H, Monel 400, Hastelloy C22, Hastelloy S276
  • Aluminium

Used welding processes

  • TIG (141) / GTAW
  • MIG (131), MAG (135/138), Cored wire (136) / GMAW, FCAW
  • Coated electrode (111) / SMAW
  • Submerges Arc Welding (121) / SAW

Filler material storage

In a heated room under controlled-atmosphere (temperature and humidity mesures)

Material made available

  • 1 submerged arc welding gallows – 1000A – LINCOLN – latest generation
  • 1 submerged arc welding gallows – 1000A – SAF
  • 10 pulsed semi-automatic synergistic (MIG/MAG) welding stations – FRONIUS TPI 500i – lastest generation
  • 12 TIG/ARC AC/DC welding stations – FRONIUS MAGIC WAVE 3000 – latest generation
  • Various TIG and MIG/MAG SAF welfing stations – ESAB
  • Various positionners from 150kg to 100 ton
  • Various drying and storage vacuum for filler metals
  • Various contact thermometers to measure preheat temperature and between passes temperature
  • Various measure instruments for dimensional inspection linked to welding activity (free play measure, undocking, apothem, exess thickness…)
  • 3 purge monitors to measure back side residual oxygen for welds with the use of inert

Norms and certifications

Certification ISO