Is such a welding specification feasible?

Is the poster aiming to prepare a PQR or a WPS? If it’s a WPS, there must be a corresponding PQR; otherwise, third parties or quality inspection authorities will demand it when conducting reviews. If it’s a PQR, our company has experience with 316L material of 16 mm thickness, and we can provide some references for you. For submerged arc welding with a V-shaped groove, the base metal thickness is 16 mm. The welding wire used is H00Cr19Ni14Mo2, and the flux used is JH-SJ601 (both are domestic brands). For the root pass, the welding wire diameter is Φ4.0, with direct current in reverse polarity; the current level is 450–500, the voltage is 30–33, and the welding speed is 33–35 cm/min. The maximum heat input per unit length is 45 KJ/cm. For the fill pass, the welding wire diameter remains Φ4.0, with direct current in reverse polarity; the current level is 450–500, the voltage is 30–33, and the welding speed is 33–35 cm/min. The maximum heat input per unit length is also 45 KJ/cm. For the cover pass, the welding wire diameter is Φ4.0, with direct current in reverse polarity; the current level is 450–500, the voltage is 30–33, and the welding speed is 33–35 cm/min. The maximum heat input per unit length is again 45 KJ/cm. This post was last edited by iamsunyue on 2007-12-4 at 10:53