KATBAK Ceramic Backing Bar – 9mm Round Groove

Premium Ceramic Weld Backing for Clean, Full-Penetration Root Passes

The KATBAK Ceramic Backing Bar (9mm Round Groove) is a high-temperature ceramic backing strip engineered to support single-sided welding on pipes and plates, delivering smooth, defect-free root passes without the need for back-gouging or backing removal. Designed for welders and fabricators who demand consistent weld quality, this 9mm round-groove profile is ideal for butt welds requiring a controlled, uniform root bead shape.

Key Features

• 9mm Round Groove Profile – Produces a smooth, concave root bead ideal for pipe and pressure vessel welding
• High Refractory Strength – Withstands intense arc heat without cracking, melting, or contaminating the weld pool
• Self-Adhesive Backing – Fast, secure application to the joint with minimal setup time
• Eliminates Back-Gouging – Saves labor time and grinding costs by removing the need for backside grinding or chipping
• Consistent Root Bead Formation – Prevents excessive weld metal drop-through and porosity
• Easy Peel-Off Removal – Detaches cleanly after welding, leaving no residue on the weld surface
• Compatible with Multiple Welding Processes – Suitable for GTAW (TIG), SMAW (Stick), FCAW, and SAW applications

Applications

• Carbon steel and stainless steel pipe welding
• Pressure pipe and pipeline fabrication
• Plate butt joints requiring single-side access
• Structural steel fabrication
• Shipbuilding and heavy equipment manufacturing
• Petrochemical and power plant piping systems

Why Choose KATBAK Ceramic Backing Bars?

KATBAK ceramic backing bars are manufactured to strict quality standards, ensuring uniform groove dimensions and reliable heat resistance across every batch. The 9mm round profile is a popular choice among pipeline welders and fabrication shops because it produces a clean, code-compliant root pass suitable for X-ray and other non-destructive testing (NDT) inspections — reducing rework and improving overall weld integrity.

Product Specifications