WSG ER120S-1
TIG (GTAW) wires for high strength structural steels

Classification DIN EN ISO


Material No.


Classification AWS

A5.28 ER120S-1



Characteristics and application

MIG/GMAW wire for welding high strength low alloy steels. Used for welding high strength steels in many high stress, critical applications; also exhibiting excellent toughness down to -60°C.
Typical applications are mining, mobile cranes, shipbuilding, concrete pumps and pressure vessel industries.

Base materials

For high strength fine-grained structural steels up to tensile strength 830MPa (120ksi).
S690Q-S890Q, S690QL-S890QL, S690QLN-S890QLN, HY 100

Typical analysis in %

C: 0,09
Si: 0,35
Mn: 1,55
Cr: 0,35
Ni: 2,50
Mo: 0,55

Yield strength in Mpa

≥ 730

Tensile strength in Mpa

≥ 830

Elongation in %

4d/5d: ≥14

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

RT ≥ 70
-50°C ≥ 68

Typical heat treatment

Welding procedure, including preheat temperature, interpass temperature and PWHT, will be dependent on the base material being welded and any applicable design codes.

Other products

MIG/GMAW: ED-FK1000, ED-FK1100, ED-ER120S-1