MIG (GMAW) wire for weathering steels

Classification DIN EN ISO

14341-A G 42 2 M21 Z2NiCu

Material No.


Classification AWS

A5.28 ER80S-G


CE, DB 42.045.10

Characteristics and application

MIG/GMAW wire for weathering steels like Corten and Patinax. 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
Corten, Patinax

Typical analysis in %

C: 0,08
Si: 0,80
Mn: 1,40
Ni: 0,80
Cu: 0,40

Yield strength in Mpa

≥ 450

Tensile strength in Mpa

≥ 550

Elongation in %

4d/5d: ≥22

Charpy-V-Value (ISO-V) in J

RT ≥ 80
-20°C ≥ 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.

Other products

SAW: UP-100 NiCu1 (S2NiCu1)