Kobelco - TIG Wire - ER90S-B3

Kobelco TG-S90B3 is a high-grade solid TIG (GTAW) welding rod belonging to Kobelco’s elite TRUSTARC series.
It is engineered strictly to conform to the AWS A5.28 ER90S-B3 international standard.

Key Specifications & Applications
Target Materials: Engineered explicitly for joining 2.25% Chromium and 1% Molybdenum low-alloy, creep-resistant steels.
It is the benchmark standard for welding ASTM A387 Grade 22 structural plates, A335 Grade P22 piping, and A213 Grade T22 steam boiler tubes.
Chemical Profile: The deposited weld matrix delivers a precise alloy concentration composed of 2.30–2.70% Chromium (Cr) and 0.90–1.20% Molybdenum (Mo).
Welding Parameters: Handled via Gas Tungsten Arc Welding (GTAW / TIG), operating on Direct Current Electrode Negative (DCEN) polarity using a 100% Pure Argon torch shield.
Identification: Kobelco stamps these rods with a 1st Brown color-coded tip identification mark to prevent material cross-contamination on complex jobsites.
Common Use Cases: Extensively chosen for high-purity root and fill passes in thermal power plants, petrochemical refineries, pressure vessel manufacturing, and high-temperature process piping operating up to 600°C.

Grade: ER90S-B91
Spec: AWS A5.28 ER90S B91
Size: 1.6 x 1000mm
One pack = 4Kg