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Union I Ni 1 MoCr TIG rod: Böhler Welding TIG rods in an R20 box, coppered
Union, TIG rod, high-strength steels

Union I Ni 1 MoCr TIG rod

EN ISO classification16834-A 55 6 ZMn3Ni 0.9 MoCr
AWS classificationA5.28 / SFA-5.28 ER100S-G
Shielding gasI1: 100 % argon
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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 Ni 1 MoCr TIG rod is used for

Union I Ni 1 MoCr is a low-alloy, high strength TIG rod. It is used in machine building, crane structures and commercial vehicles.

The rod joins materials such as S500Q, S550Q, P500QL and P550QL. You feed the filler into the pool by hand while the arc burns between the tungsten electrode and the weld.

  • Classification EN ISO: 16834-A 55 6 ZMn3Ni 0.9 MoCr
  • AWS classification: A5.28 / SFA-5.28 ER100S-G
  • Shielding gas: I1
  • Diameters: 0.9 / 1.0 / 1.2 / 2.4 mm

Keep the heat input within the range the steel maker specifies, going above it lowers the strength of the joint. Keep the rod inside the gas shield even after you lift it from the pool, a cold oxidised end will contaminate the next drop. Set the gas post-flow long enough for the pool and the electrode to cool under the shield. Match the diameter to the plate thickness and the welding position, thinner rods are easier to control out of position.

Manufacturer datasheet

Chemical composition and properties from the manufacturer datasheet

Datasheet PDF

Typical weld metal values from the voestalpine Böhler Welding data sheet, issue 12/2022. 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.-%
CSiMnCrNiMo
0,080,501,600,270,900,40
Welding data and approvals
Polaritydirect current, electrode negative (DC-)
Shielding gas to EN ISO 14175I1
Datasheet edition12/2022
Fits

For which materials and machines

Base materials
  • S500Q
  • S550Q
  • P500QL
  • P550QL
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