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BÖHLER Q 71 RC flux-cored wire: Böhler Welding wire on a BS300 spool, uncoppered
Böhler Welding, flux-cored wire, mild and low-alloy steels

BÖHLER Q 71 RC flux-cored wire

EN ISO classification17632-A T 46 4 P M21 1 H10 T 42 2 P C1 1 H5
AWS classificationA5.20 / SFA-5.20 E71T-1M/T-9M/T-12M JH8 E71T-1/T-9/T-12C-JH4
Shielding gasC1: 100 % CO2, M21: Ar with 15 to 25 % CO2
ApprovalsTÜV (11164), DB (42.014.35), ABS, LR, DNV, BV, CWB, RINA, 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 BÖHLER Q 71 RC flux-cored wire is used for

BÖHLER Q 71 RC is a rutile flux-cored wire for mild steel, suitable for all welding positions and run under M21 or 100 % CO2 shielding gas.

It is used in structural steelwork, on tanks, piping and series production. The rutile core makes constrained positions easier and gives a calm, soft arc, and the slag covers the bead and cools slowly, so the face stays even.

  • Classification EN ISO: 17632-A T 46 4 P M21 1 H10 T 42 2 P C1 1 H5
  • AWS classification: A5.20 / SFA-5.20 E71T-1M/T-9M/T-12M JH8 E71T-1/T-9/T-12C-JH4
  • Shielding gas: M21, C1
  • Approvals: TÜV (11164), DB (42.014.35), ABS, LR, DNV, BV, CWB, RINA, CE

Clean rust, paint and grease out of the groove, contaminated plate gives porosity even with well set parameters. Remove the slag before every following bead, slag left between layers is the most common source of inclusions. Store the wire dry and do not leave an open spool in the feeder overnight, the core takes up moisture.

Manufacturer datasheet

Chemical composition and properties from the manufacturer datasheet

Datasheet PDF

Typical weld metal values from the voestalpine Böhler Welding data sheet, issue 07/2025. 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.-%
CSiMn
gas M210,060,501,20
gas C10,050,451,10
Welding data and approvals
Polaritydirect current, electrode positive (DC+)
Shielding gas to EN ISO 14175M2
ApprovalsTÜV (11164.), DB (42.014.35), ABS, LR, DNV, BV, CWB, RINA, CE
Datasheet edition07/2025
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 -40 °C
u 500 (min. 460) 580 (range 550 to 660) 26 (min. 22) 130 90 (min. 47)
u1 480 (min. 420) 550 (range 500 to 640) 25 (min. 22) 110 (min. 47) 40 (min. 27)
  • u: untreated, as welded, shielding gas M21
  • u1: untreated, as welded, shielding gas C1
Fits

For which materials and machines

Base materials
  • S235JO-S355JO
  • S450JO
  • S235J2-S355J2
  • S275N-S460N
  • S275M-S460M
  • P235GH-P355GH
  • P275NL1-P460NL1
  • P215NL
  • P265NL
  • P355N
  • P285NH-P460NH
  • P195TR1- P265TR1
Process and machines

Flux-cored wire, works on any sound machine for this process: welders. Shielding gas: C1: 100 % CO2, M21: Ar with 15 to 25 % CO2.

Used welders New welders Ask us to help you choose
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