OK Flux 10.90

OK Flux 10.90 is an agglomerated aluminate‑fluoride‑basic flux designed for welding 9% Ni steels and other high‑alloyed steels with Ni‑based wires. It adds manganese to reduce hot cracking, offers good slag detachability and a clean bead appearance.

Key Features

• Manganese‑adding formulation for lower hot‑crack risk
• Fluoride‑basic slag (CaF₂‑Al₂O₃‑SiO₂) for easy removal
• Suitable for both stainless and nickel‑based steels
• Provides consistent bead appearance

Specifications

• Classifications: EN ISO 14174 S A AF 25641 Mn AC (Ni), EN ISO 14174 S A AF 25644 MnNi DC (SS)
• Slag Type: Fluoride basic CaF₂‑Al₂O₃‑SiO₂
• Alloy Transfer: Chromium compensating, manganese alloying (Ni); Chromium compensating, nickel & manganese alloying (SS)
• Density: 1.0 kg/dm³ (nominal)
• Basicity Index: 1.7 (nominal)
• Flux Consumption (SAW): 26 V – 0.5 kg (DC+), 0.4 kg (AC); 30 V – 0.6 kg (DC+), 0.5 kg (AC); 34 V – 0.8 kg (DC+), 0.7 kg (AC); 38 V – 1.0 kg (DC+), 1.0 kg (AC)
• Recommended Conditions: Dimension 4.0 mm, 580 A, Travel Speed 33 m/h

Applications

• Submerged Arc Welding (SAW) of nickel‑based and high‑alloy steels
• High‑volume production where weld economy is critical
• Situations requiring reduced hot‑cracking risk and clean slag removal