Thermanit MTS 5 CoT is a low-alloy, creep resistant TIG rod. It is used in boiler making, on pressure vessels and petrochemical installations.
The typical base material is 1.4915. The deposit resists creep at elevated temperature.
Classification EN ISO: 21952-A W Z CrCoW 11 2 2
AWS classification: A5.28 / SFA-5.28 ER110S-G
Shielding gas: I1
Diameters: 0.5 / 0.8 / 1.0 / 1.6 / 2.0 / 2.4 mm
Approvals: TÜV (10578), CE
Plan the preheating and the post weld heat treatment to the WPS for the grade in hand, CrMo steels harden in the heat affected zone. Protect the root when you weld from one side, an oxidised underside spoils the corrosion resistance. Keep the rod inside the gas shield even after you lift it from the pool, a cold oxidised end will contaminate the next drop. Thinner diameters suit root runs and thin sheet, thicker ones suit filling.
Manufacturer datasheet
Chemical composition and properties from the manufacturer datasheet
Typical all-weld metal values from the voestalpine Böhler Welding datasheet, edition 10/2023. Manufacturer minimum in brackets. Values depend on the heat treatment condition and shielding gas given for each row and do not replace testing of your joint according to your WPS.
Chemical composition, wt.-%
C
Si
Mn
Cr
Ni
Mo
W
V
Co
Nb
N
B
0,16
0,4
0,4
11,4
0,4
0,3
1,5
0,2
1,55
0,055
0,04
0,003
Welding data and approvals
Polarity
direct current, electrode negative (DC-)
Shielding gas to EN ISO 14175
I1
Approvals
TÜV (10578), CE
Datasheet edition
10/2023
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 20 °C
s
700 (min. 620)
840 (min. 760)
18 (min. 15)
60 (min. 40)
s: heat treated, tempered 770 °C / 2 h, shielding gas I1
Fits
For which materials and machines
Base materials
1.4915
Process and machines
TIG rod, works on any sound machine for this process: welders. Shielding gas: I1: 100 % argon.
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