What should be paid attention to when welding stainless steel seamless elbows?
Wenzhou Licheng Steel Industry Co., Ltd. is a modern enterprise specializing in stainless steel pipes, pipe fittings and flange products. We have professional technical strength and advanced team management capabilities. Grades include: 304.304L.304H.321.321H.316.316L.317L.310S.347H and other pipe size range (6mm-580mm)*outer diameter (2mm-40mm)WT*4000-15000mm) length.
The stainless steel seamless elbow acts on the turning of the pipeline. It can choose different forming processes according to different materials or wall thicknesses. It accounts for the largest proportion of all pipe fittings used in the pipeline system.
So regarding the welding of stainless steel seamless elbows, Licheng Steel will share with you the precautions below.
1. In order to avoid interlayer corrosion due to heating, the welding current should not be too large, which is about 20% less than that of carbon steel electrodes. The arc should not be too long, and the interlayers are cooled quickly.
2. Stainless steel seamless elbows are highly hardened after welding and are prone to cracks. Therefore, if the same type of stainless steel seamless elbows are welded, preheating above 300°C and slow cooling at about 700°C after welding are required. If the weldment cannot be heat treated after welding, stainless steel seamless elbow electrodes should be selected.
What should be paid attention to when welding stainless steel seamless elbows?
Wenzhou Licheng Steel Industry Co., Ltd. is a modern enterprise specializing in stainless steel pipes, pipe fittings and flange products. We have professional technical strength and advanced team management capabilities. Grades include: 304.304L.304H.321.321H.316.316L.317L.310S.347H and other pipe size range (6mm-580mm)*outer diameter (2mm-40mm)WT*4000-15000mm) length.
The stainless steel seamless elbow acts on the turning of the pipeline. It can choose different forming processes according to different materials or wall thicknesses. It accounts for the largest proportion of all pipe fittings used in the pipeline system.
So regarding the welding of stainless steel seamless elbows, Licheng Steel will share with you the precautions below.
1. In order to avoid interlayer corrosion due to heating, the welding current should not be too large, which is about 20% less than that of carbon steel electrodes. The arc should not be too long, and the interlayers are cooled quickly.
2. Stainless steel seamless elbows are highly hardened after welding and are prone to cracks. Therefore, if the same type of stainless steel seamless elbows are welded, preheating above 300°C and slow cooling at about 700°C after welding are required. If the weldment cannot be heat treated after welding, stainless steel seamless elbow electrodes should be selected.