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Thermanit Chromo 9 V Mod. stick electrode: Böhler Welding stick electrodes in a box
Thermanit, stick electrode, creep-resistant CrMo steels

Thermanit Chromo 9 V Mod. stick electrode

EN ISO classificationEN ISO 3580-A: E Z CrMo91 B 4 2 H5, EN ISO 3580-B: E6215-9C1MV H5
AWS classificationAWS A5.5 / SFA-5.5: E9015-B91 H4, AWS A5.5M: E6215-B91 H4
ApprovalsCE
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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 Thermanit Chromo 9 V Mod. stick electrode is used for

Thermanit Chromo 9 V Mod. is a basic coated stick electrode with a 9Cr-1Mo-VNb type deposit, which after post weld heat treatment has a tempered martensitic structure. The range of applications covers joining tube, pipe, plate, forgings and castings made of creep resistant steels of the ASTM grade 91 class, working in thermal power and petrochemical plants.

The base materials are 1.4903 (X10CrMoVNb9-1), 1.4955 (GX12CrMoVNbN9-1) and 10Cr9. Compared with the standard version, the sum of manganese and nickel is held below 1.0 percent by weight here, which keeps the Ac1 temperature safely above 780 degrees C and widens the margin when choosing the tempering temperature. The coating was designed for difficult site conditions and a low level of diffusible hydrogen.

  • Classification EN ISO 3580-A: E Z CrMo91 B 4 2 H5
  • Classification EN ISO 3580-B: E6215-9C1MV H5
  • AWS classification A5.5 / SFA-5.5: E9015-B91 H4
  • Coating: basic
  • Current: DC+
  • Diameters: 2.0 / 2.5 / 3.2 / 4.0 / 5.0 mm
  • Lengths: 250, 350 and 450 mm
  • Approvals: CE

Choose the version with the reduced sum of manganese and nickel where the procedure calls for tempering at the upper temperature limit, close to Ac1. The rest of the regime stays the same: preheating, control of the interpass temperature, cooling and tempering to the data sheet. On small diameter tube reach for the 2.0 mm electrode and work at a low current. Use an opened pack within the shift.

Manufacturer datasheet

Chemical composition and properties from the manufacturer datasheet

Datasheet PDF

Typical weld metal values from the voestalpine Böhler Welding data sheet, issue 08/2024. 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.-%
CSiMnCrNiMoVNbN
0,10,20,89,00,11,10,20,050,04
Welding data and approvals
Polaritydirect current, electrode positive (DC+)
ApprovalsCE
Datasheet edition08/2024
Fits

For which materials and machines

Base materials
  • 1.4903
  • X10CrMoVNb9-1
  • 1.4955
  • GX12CrMoVNbN9-1
  • 10Cr9

current: DC+

Process and machines

Stick electrode, works on any sound machine for this process: welders.

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: Stick electrodes