SF-50A small


Flux cored wire for welding high tensile steels such as Weldox 500.

AWS A5.29 E91T1-K2M-H4
AWS A5.36 E91T1-M21A4-K2-H4
EN ISO 17632-A: T 50 4 ZMn1.5Ni P M21 2 H5
EN ISO 9606-1: FM1

General description:

SF-50A is a seamless rutile flux cored wire developed for welding high tensile steel such as i.e. Weldox 500. The wire uses an Argon/CO2 mixed shielding gas, ensuring a user friendly and stable arc with minimum spatter and good transition to the parent material. SF-50A is CTOD tested with good results. Due to its seamless characteristic, the wire has an extremely low content of hydrogen (typical 3ml/100g weld metal), something which ensures low risk of cold cracks. The wire is copper coated and has a clean surface which together with exact diameter and perfect roundness ensures a stable and even wire feeding. The stick out should be between 15-25mm depending upon welding parameters. Volts should be 10% of the Amperage, this is about 1-3 volts lower than that of which conventional folded flux cored wires require.

Typical chemical composition of all-weld-metal:


Typical mechanical properties of all-weld-metal:

606 Mpa657 Mpa27 %75V(J)/-40°C

Diffusible hydrogen content:

≤5 ml/100g (2,8 ml/100g typical).

Packaging information:

1,2mm x 5,0kg spool D200 -ArticleNo.:5212481M
1,2mm x 12,5kg spool D300 -ArticleNo.:5212480M

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SF-50A, English, 06.07.2023.