OP 33

OP 33 is used for welding stainless and heat resistant steels. OP 33 is neutral in respect to the carbon content of the weld metal so that low C-steels can be welded with suitable wire electrodes. Although OP 33 is not chromium compensated here is no loss of chromium and it is neutral in respect to silicon and manganese. The welds are smooth and have a fine ripple without undercut at the toes and without slag residues. OP 33 is an aluminate-fluorite type and forms a very thin slag, therefore a low heat input per unit length of weld is recommended. OP 33 has good slag detachability and is ideal for fillet welding.

Features

• Neutral flux for stainless steel application
• No chromium lost in weld metal despite no chromium compensation from flux
• Ideal for fillet welds