UP-100 NiCu1 (S2NiCu1)
SAW (submerged arc welding) wires for weathering steels

Classification DIN EN ISO

14171-A S2Ni1Cu

Material No.


Classification AWS

A5.23 EG


TÜV 03275, CE

Characteristics and application

Submerged arc welding wire for weathering steels. Weathering steels, with controlled additions of Cu, provide improved corrosion resistance compared to CMn steels. The improved resistance to atmospheric corrosion means these steels find use for architectural applications and also for welding CMn steels to prevent preferential corrosion of the weld.

Base materials

For weather resistant construction steels, commonly referred to as weathering steels.
S235J0W-S355J0W, S235J2W-S355J2W, S355J0WP, S355J2WP, S355K2W
ASTM: A242 grades 1/2, A588 grades A/B/C/K, A606, A709 grade 50W

Typical analysis in %

C: 0,10
Si: 0,25
Mn: 1,00
Ni: 0,85
Cu: 0,47

Typical heat treatment

Preheat and PWHT are often not necessary but actual requirements will depend on the grade and thickness of material being welded and any design codes that apply.

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