Thermanit X is a high-alloyed solid wire for special applications. It suits welding stainless and acid-resistant steels in tank building, process piping and equipment for the chemical and food industries.
The wire suits hand work with a semiautomatic torch and mechanised stations, and it also serves for cladding carbon steel surfaces.
Classification EN ISO: 14343-A G 18 8 Mn
AWS classification: A5.9 / SFA-5.9 ER307(mod.)
Shielding gas: M12, M13, M21
Diameters: 0.8 / 0.9 / 1.0 / 1.2 / 1.6 mm
Approvals: TÜV (05651), DB (43.132.01), DNV, VG 95132-1, CE
Keep the heat input down and do not hold the joint hot longer than needed, austenite expands strongly and pulls the structure out of shape. Check the contact tip, a worn bore upsets the wire feed and causes burnback. Match the drive rolls to the wire diameter and check the liner, wire slip shows up at once in an unstable arc. Match the diameter to the thickness and the position, thinner wires are easier to control in constrained positions.
Manufacturer datasheet
Chemical composition and properties from the manufacturer datasheet
Typical weld metal values from the voestalpine Böhler Welding data sheet, issue 05/2023. The minimum or the range guaranteed by the maker is given in brackets. The figures depend on the heat treatment condition and the shielding gas stated in the row and do not replace testing the joint to your own WPS.
Chemical composition, wt.-%
C
Si
Mn
Cr
Ni
0,08
0,8
7,0
19
9,0
Welding data and approvals
Polarity
direct current, electrode positive (DC+)
Shielding gas to EN ISO 14175
M1
Approvals
TÜV (05651), DB (43.132.01), DNV, VG 95132-1, CE
Datasheet edition
05/2023
Mechanical properties of the all-weld metal, typical values
Condition
Yield strength Re, MPa
Tensile strength Rm, MPa
Elongation A, %
Impact energy KV, J at -60 °C
Impact energy KV, J at -110 °C
u
430 (min. 370)
640 (min. 600)
42 (min. 35)
60 (min. 47)
32
u: untreated, as-welded, shielding gas Ar + 2.5% CO 2
Fits
For which materials and machines
Base materials
Material group: stainless and acid-resistant steels. The exact grades and thicknesses are in the manufacturer data sheet, and for an unusual joint call us, we will pick the filler metal.
Process and machines
Solid MIG/MAG wire, works on any sound machine for this process: welders. Shielding gas: M12: Ar with CO2 added (up to 5 %), M13: Ar with O2 added (up to 3 %), M21: Ar with 15 to 25 % CO2.
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