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Union ER 90S-B3 TIG rod: Böhler Welding TIG rods in an R20 box, coppered
Union, TIG rod, creep-resistant CrMo steels

Union ER 90S-B3 TIG rod

EN ISO classification21952-A W CrMo2
AWS classificationA5.28 / SFA-5.28 ER90S-B3
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 ER 90S-B3 TIG rod is used for

Union ER 90S-B3 is a low-alloy, creep resistant TIG rod. It works in power plant, on superheaters, headers and pressure pipework in chromium molybdenum steels.

Base materials include ASTMA 182, ASTMA 213, ASTMA 234, ASTMA 335, 1.7380, 10CrMo9-10 and ASTMA 217. The rod is used on boilers and pressure vessels under statutory inspection, and its deposit resists creep at elevated temperature.

  • Classification EN ISO: 21952-A W CrMo2
  • AWS classification: A5.28 / SFA-5.28 ER90S-B3
  • Shielding gas: I1
  • Diameters: 2.0 / 2.4 / 3.2 mm

Watch the hydrogen level, dry consumables and a preheated groove are your basic protection against cold cracking. 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. Match the diameter to the material 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 02/2023. 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.-%
CSiMnCrMo
0,090,550,602,551,05
Welding data and approvals
Polaritydirect current, electrode negative (DC-)
Shielding gas to EN ISO 14175I1
Datasheet edition02/2023
Fits

For which materials and machines

Base materials
  • ASTMA 182
  • ASTMA 213
  • ASTMA 234
  • ASTMA 335
  • 1.7380
  • 10CrMo9-10
  • ASTMA 217
  • 1.7379
  • G17CrMo9-10
  • ASTMA 387
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