Böhler Welding, flux-cored wire, creep-resistant CrMo steels

FOXcore CB 2 RC flux-cored wire

EN ISO classification17634-A T ZCrMoCo9VNbNB P M21 1
AWS classificationA5.29 / SFA-5.29 E91T1-GM
Shielding gasM21: Ar with 15 to 25 % CO2
ApprovalsTÜV (19464), 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

What FOXcore CB 2 RC flux-cored wire is used for

FOXcore CB 2 RC is a low-alloyed, creep resistant flux-cored wire of the rutile type for the cast material COST CB2.

The rutile core gives a fast freezing pool, a well shaped face and slag that lifts easily. The deposit stands up to creep at elevated temperature, and the wire is used in boiler, pressure vessel and petrochemical plant construction and in power generation on superheaters, headers and pressure piping.

  • Classification EN ISO: 17634-A T ZCrMoCo9VNbNB P M21 1
  • AWS classification: A5.29 / SFA-5.29 E91T1-GM
  • Shielding gas: M21
  • Diameters: 1.2 mm
  • Approvals: TÜV (19464), CE

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. Store the wire dry and do not leave an open spool in the feeder overnight, the core takes up moisture. Do not shorten the stick-out too far, a flux-cored wire needs resistive preheating so the core melts in time.

Manufacturer datasheet

Chemical composition and properties from the manufacturer datasheet

Datasheet PDF

Typical weld metal values from the voestalpine Böhler Welding data sheet, issue 03/2026. 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.-%
CSiMnCrNiMoVCoNbNB
gas M210,120,20,89,00,21,40,21,00,030,020,006
Welding data and approvals
Polaritydirect current, electrode positive (DC+)
Shielding gas to EN ISO 14175M2
ApprovalsTÜV (19464), CE
Datasheet edition03/2026
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
s 590 740 17 30
  • s: stress relieved 730 °C/24 h / furnace down to 300 °C / air, shielding gas Ar + 18 % CO2
Fits

For which materials and machines

Base materials
  • GX13CrMoCoVNbNB10-1-1
Process and machines

Flux-cored wire, works on any sound machine for this process: welders. Shielding gas: M21: Ar with 15 to 25 % CO2.

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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: Flux-cored wires