Welding
Welding technologies
PWPS
Preliminary welding procedure
WPQR
Design and preparation of welding procedures for approval
WPS
Development of specified welding procedures according to WPQR
Certified welding technologies

111 (MMAW)
Coated electrode welding

121 (SAW)
Welding under the flux with a wire electrode

131 (MIG)
Welding with a melting electrode in an inert gas

135 (MAG)
Welding with a melting electrode in an active gas

136 (MAG)
Welding with a filled (pipe) electrode with a meltable filling in an active gas

138 (MAG)
Welding with a filled (pipe) electrode with a metal filling in an active gas

141 (TIG, WIG)
Welding with a non-melting electrode in an inert gas

311 (OAW)
Oxygen-acetylene flame welding
Welding materials

NON-ALLOY STEEL
- Non-alloy basic steels
- Non-alloy quality steels
- Non-alloy stainless steels

STAINLESS STEEL
- Fire-resistant
- Made of chrome
- Made of chrome-nickel
- Made of chrome-manganese

OTHER ALLOY STEEL
- Alloy quality steel
- Alloy stainless steel
