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Union I CrMo 2 V TIG rod: Böhler Welding TIG rods in an R20 box, coppered
Union, TIG rod, creep-resistant CrMo steels

Union I CrMo 2 V TIG rod

EN ISO classification21952-A ZCrMoV2 1
AWS classificationA5.28 / SFA-5.28 ER90S-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 CrMo 2 V TIG rod is used for

Union I CrMo 2 V is a low-alloy, creep resistant TIG rod. It is used on boilers, steam pipelines, refinery installations and parts working at elevated temperature.

Base materials are 1.7703 and 13CrMoV9-10. The deposit resists creep at elevated temperature, and TIG gives you full control over the heat input and a clean, smooth weld.

  • Classification EN ISO: 21952-A ZCrMoV2 1
  • AWS classification: A5.28 / SFA-5.28 ER90S-G
  • Shielding gas: I1
  • Diameters: 2.4 mm

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. Set the gas post-flow long enough for the pool and the electrode to cool under the shield. Grind the tungsten tip along its axis and hold a short arc, otherwise the pool spreads. Watch the hydrogen level, dry consumables and a preheated groove are your basic protection against cold cracking.

Manufacturer datasheet

Chemical composition and properties from the manufacturer datasheet

Datasheet PDF

Typical weld metal values from the voestalpine Böhler Welding data sheet, issue 06/2021. 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.-%
CSiMnCrMoVNb
0,090,051,202,301,00,280,015
Welding data and approvals
Polaritydirect current, electrode negative (DC-)
Shielding gas to EN ISO 14175I1
Datasheet edition06/2021
Fits

For which materials and machines

Base materials
  • 1.7703
  • 13CrMoV9-10
Process and machines

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

Used welders New welders Ask us to help you choose
Technical substitute

Consumables with the same classification

Same material group, matching classification, a shared diameter and the same shielding gas. Confirm any substitute for your WPS in the documentation.

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