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Thermanit 20/16 SM TIG rod: Pręty TIG Böhler Welding w kartonie R20, niemiedziowane
Thermanit, TIG rod, stainless and acid-resistant steels

Thermanit 20/16 SM TIG rod

EN ISO classification14343-A W Z 22 17 8 4 N L
AWS classificationA5.9 / SFA-5.9
Shielding gasI1: 100 % argon
ApprovalsDNV, WIWEB, CE
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Authorised distributorvoestalpine Böhler Welding
Shipping in 24 hfrom the warehouse in Krotoszyn
Data sheetcomposition, properties, specifications
Wire selectionhelp from a welding engineer
Manufacturer data sheet
Application Specifications Manufacturer datasheet Fits Bought together
Application

What Thermanit 20/16 SM TIG rod is used for

Thermanit 20/16 SM is a high alloyed austenitic stainless TIG rod. It works on pressure vessels, pipework and austenitic steel structures where corrosion resistance matters.

The rod joins grades such as 1.3948, 1.3951, 1.3952, 1.3957, 1.5662, X8Ni9 and 1.3964, along with related materials. It also serves for cladding carbon steel surfaces and is used in shipbuilding and vessel repair.

  • Classification EN ISO: 14343-A W Z 22 17 8 4 N L
  • AWS classification: A5.9 / SFA-5.9
  • Shielding gas: I1
  • Diameters: 1.0 / 1.2 / 1.5 / 1.6 / 2.0 / 2.4 mm
  • Approvals: DNV, WIWEB, CE

Keep the heat input down and do not hold the joint hot longer than you need to, austenite expands strongly and pulls the structure out of shape. Grind the tungsten tip along its axis and hold a short arc, otherwise the pool spreads.

Manufacturer datasheet

Chemical composition and properties from the manufacturer datasheet

Datasheet PDF

Typical all-weld metal values from the voestalpine Böhler Welding datasheet, edition 03/2025. 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.-%
CSiMnCrNiMoN
0,030,77,52217,53,60,24
Welding data and approvals
Polaritydirect current, electrode negative (DC-)
Shielding gas to EN ISO 14175I1
ApprovalsTÜV (20172 (1.0-1.2 mm) / 20199 (2.0-2.4 mm)), DNV, WIWeB, CE
Datasheet edition03/2025
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 Impact energy KV, J at -30 °C Impact energy KV, J at -196 °C
u 475 700 30 70 32 27
  • u: untreated, as-welded, shielding gas Ar
Fits

For which materials and machines

Base materials
  • 1.3948
  • 1.3951
  • 1.3952
  • 1.3957
  • 1.5662
  • X8Ni9
  • 1.3964
  • 1.4569
  • UNS S20910
Process and machines

TIG rod, works on any sound machine for this process: welders. Shielding gas: I1: 100 % argon.

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From the same group

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