SF-1A
General purpose flux cored wire for shipbuilding and structures with impact test req. at -20°C.
AWS A5.20 E71T-1M H4
EN ISO 17632-A: T 42 2 ZMn P M21 1 H5
EN ISO 9606-1: FM1
General description:
SF-1A is a seamless rutile flux cored wire for welding with Argon/CO2 mixed shielding gas. Being seamless it provides welds with very low diffusible hydrogen content, typical 2.8ml/100g weld metal. The flux cored wire has excellent weldability in all positions and is extremely efficient in the root pass against ceramic backing. Good penetration in vertical down greatly reduces the risk of imperfections. It also gives excellent performance against porosity on primed steel plates when using automated welding such as a fillet welding tractor. SF-1A has a stable welding arc with less spatter and perfect bead surface. The flux cored wire has a clean, copper coated surface. Together with exact diameter and roundness it provides a stable and even wire feeding. This reduces wear and tear of liners and contact tips. The wire is classified as a grade 3 (-20°C).
Diffusible hydrogen content:
<5 ml/100g (2,8 ml/100g typical).
Packaging information:
1,0mm x 5,0kg spool -ArticleNo.: 500110
1,0mm x 12,5kg spool -ArticleNo.: 500120
1,2mm x 5,0kg spool -ArticleNo.: 500223
1,2mm x 12,5kg spool -ArticleNo.: 500124
1,2mm x 250kg drum -ArticleNo.: 500320
1,4mm x 12,5kg spool -ArticleNo.: 500141
1,4mm x 250 kg drum -ArticleNo.: 500330
1,6mm x 12,5kg spool -ArticleNo.: 500160
1,6mm x 250kg drum -ArticleNo.: 500360
Approvals:
DNV-GL, LR, ABS, CWB, BV, PRS, RINA, CE
Reference/date:
SF-1A, English, 16.04.2026.
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