OK Autrod B3 SC

OK Autrod B3 SC is a Cr‑, Mo‑alloyed, copper‑coated SAW wire offering very low impurity levels and high toughness for creep‑resistant steels.

Key Features

• Copper‑coated wire with strong adhesion for excellent electrical conductivity
• Optimized spool design for low friction and easy decoiling
• EcoCoil 1000 kg package for uninterrupted, high‑productivity welding
• Consistently defined chemistry meeting SFA/AWS A5.23 and EN ISO 24598 standards
• Compatible with ESAB OK Flux 10.65 for maximum toughness

Specifications

• Classifications: SFA/AWS A5.23 EB3R, EN ISO 24598‑A S S CrMo2
• Approvals: CE EN 13479, UKCA EN 13479
• Typical composition (wt %): C 0.11, Mn 0.65, Si 0.10, S 0.003, P 0.003, Ni 0.08, Cr 2.50, Mo 1.00, V 0.006, Al 0.005, Cu 0.08, Nb 0.006, Ti 0.002, Sb 0.002, As 0.003, B 0.0005, Sn 0.003, Mn+Si 0.75, Nb+Ti+V 0.014, P+Sn 0.006, J‑Factor 50, X‑bar 5
• Available sizes: 2.5 mm (30 kg), 3.2 mm (30 kg & 280 kg), 4.0 mm (30 kg & 280 kg)

Applications

• Submerged Arc Welding of creep‑resistant steels (≈2.25 % Cr, 1 % Mo)
• Projects requiring high toughness and low impurity welds
• Heavy‑section welding with EcoCoil for continuous operation