NiCrMo-alloyed wire electrode with higher Mn-content for submerged arc welding of high tensile quenched and tempered fine grain steels in vessel and apparatus construction as well as high tensile pipe steels.

 AWS A5.23: EM4 mod. Submerged arc welding wire 

Chemical Composition (%)

Welding Positions:

Diameter

Copper-coated, smooth finish free from surface defects and foreign matter.

Base Materials

2.0 – 5.0 mm; sizes and tolerances acc. to ISO 544 and AWS A5.23.

Classification:

EN 14295: S3Ni2,5CrMo
SFA 5.23 / AWS A5.23: EM4 mod.

Wire Electrode Surface

Package Forms

Fine grain steels acc. to EN 10025, EN 10028: S620QL to S690QL
suitable flux EN 760: SA FB 1 55 AC

Pipe steels acc. to ISO 3183, EN 10208 and API-5: L625M / X90 to L690M / X100
suitable fluxes EN 760: SA AB 1 66 AC H5 and EN 760: SA FB 1 67 AC H5

Shipbuilding steels: high strength fine grain steels up to 690 MPa yield strength suitable flux EN 760: SA FB 1 55 AC

Flux type suitability is strongly dependent on its application. In combination with the wire electrode the most suitable flux should match the requirements of the plate material as closely as possible under the existing welding conditions.

Further information can be obtained from the technical flux data sheets.

Coils, spools, drums and spiders as standard package forms for SAW-wire electrodes, different package forms on request.