WEATHERING STEEL-Cor-Ten®
Application
This type of steel is primarily used for constructing structures with weather-resistant steels, thanks to precise control of copper addition. This ensures corrosion resistance three times higher and a more stable patina compared to traditional carbon-manganese (C-Mn) steel. Its applications include architectural structures, bridges, drainpipes, and chimneys. It is particularly effective against corrosion in seawater, especially in harsh arctic waters with high oxygenation and salinity. It is often used in the welding of microalloyed and C-Mn steels for icebreaker ships and offshore structures. It is essential to preheat based on the thickness of the joint and its restraint. Typically, the material is left in the 'as-welded' condition, without further treatments.
Alloy Type
Low alloy steel with Ni-Cu-Cr additions for welding weathering steels.
Microstructure
In the as-welded condition the microstructure is
ferritic with a high proportion of acicular ferrite for
optimum toughness.
Materials
- EN W.Nr.: S235JRW (1.8960), S235J2W (1.8961), S235J0W (1.8958), S275J0W, S275J2W, S355J0W (1.8959), S355J2W (1.8963), S355J0WP (1.8945)
- ASTM: A588 gr. A, B, C, K, A242 gr. 1, 2
- PROPRIETARY: Cor-Ten® A, B (US Steel), Patinax® (Thyssenkrupp)
Products of the line WEATHERING STEEL-Cor-Ten®
| Product name | Process | AWS specifications | EN ISO specifications | |
| DAIKOWT 66 | GTAW |
AWS A5.28
ER80S-G |
EN ISO 636-A
W 46 5 M21 Z |
|
| G-TECH 57B | SMAW |
AWS A5.5
E8018-W2 |
EN ISO 2560-A
E 46 2 Z B 42 |
|
| DAIKOFCW 66B | FCAW |
AWS A5.36
E80T5 |
EN ISO 17632-A
T 46 4 Z P M 1 |
|
| DAIKOFCW 66R | FCAW |
AWS A5.36
E81T1-WC2 |
EN ISO 17632-A
T 50 0 Z P C 1 |
|
| DAIKOMCW 66 | FCAW |
AWS A5.36
E81T15 M21 H4 |
EN ISO 17632-A
T 46 6 Z M21 M 1 H5 |
|
| DAIKOWM 66 | GMAW |
AWS A5.28
ER80S-G |
EN ISO 14341-A
G 46 4 M21 Z |
|
| DAIKOWS 66 | SAW |
AWS A5.23
EG |
EN ISO 14171-A
S2Ni1Cu |
