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Union I 1,2 Ni TIG rod: Böhler Welding TIG rods in an R20 box, coppered
Union, TIG rod, low-temperature Ni steels

Union I 1,2 Ni TIG rod

EN ISO classification636-A W 46 6 3Ni1
AWS classificationA5.28 / SFA-5.28 ER80S-G
Shielding gasI1: 100 % argon
ApprovalsTÜV (00513), DB (42.132.49), DNV, KTA 1408.1; (08012), CE
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Authorised distributorvoestalpine Böhler Welding
Courier shippingfrom the warehouse in Krotoszyn
Data sheetcomposition, properties, specifications
Wire selectionhelp from a welding engineer
Manufacturer data sheet
Application Specifications Manufacturer datasheet Fits Substitute Bought together
Application

What Union I 1,2 Ni TIG rod is used for

Union I 1,2 Ni is a TIG rod for welding low-temperature nickel steels. It works on LNG tanks, cryogenic installations and pipework operating below zero.

The rod suits root runs, thin walls and welds that need a smooth face. You feed the filler into the pool by hand while the arc burns between the tungsten electrode and the weld.

  • Classification EN ISO: 636-A W 46 6 3Ni1
  • AWS classification: A5.28 / SFA-5.28 ER80S-G
  • Shielding gas: I1
  • Diameters: 2.0 / 2.4 / 2.5 / 3.0 / 3.2 mm
  • Approvals: TÜV (00513), DB (42.132.49), DNV, KTA 1408.1; (08012), CE

Keep the heat input and the interpass temperature down, low temperature toughness drops as soon as the joint overheats. Grind the tungsten tip along its axis and hold a short arc, otherwise the pool spreads. Protect the root when you weld from one side, an oxidised underside spoils the corrosion resistance.

Manufacturer datasheet

Chemical composition and properties from the manufacturer datasheet

Datasheet PDF

Typical weld metal values from the voestalpine Böhler Welding data sheet, issue 12/2021. 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.-%
CSiMnNi
0,10,71,41,3
Welding data and approvals
Polaritydirect current, electrode negative (DC-)
Shielding gas to EN ISO 14175I1
ApprovalsTÜV (00513), DB (42.132.49), DNV, KTA 1408.1 (08012), CE
Datasheet edition12/2021
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 -60 °C
u 470 (min. 460) 600 (range 530 to 680) 25 (min. 20) 150 (min. 47) 47 (min. 32)
  • u: untreated, as welded, shielding gas I1
Fits

For which materials and machines

Base materials
  • S275N-S460N
  • S275NL-S460NL
  • S275M-S460M
  • S275ML-S460ML
  • P355N
  • P460N
  • P275NL1-P460NL1
  • P275NL2-P460NL2
  • L245NB- L450NB
  • L245MB-L450MB
  • GE200-GE240
  • A 350 Gr. LF1
Process and machines

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

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Technical substitute

A substitute for this consumable

We will find a substitute with the same classification, diameter and shielding gas over the phone: +48 669 162 833.

From the same group

Other consumables for the same material

For comparison before you buy. A technical substitute is listed above.

All: TIG welding rods