← Glossary

Step-back welding sequence

Pilgrim step welding sequence: Sequential welding of staggered segments to reduce longitudinal stresses in long butt welds.

Physical-Chemical Mechanism of Action

Staggered welding reduces longitudinal stresses by welding sections sequentially, offset by a fixed distance. This prevents simultaneous stress accumulation across the entire weld length.

Metallurgical Relevance & Welding Risks

Incorrect application can cause stress concentrations, leading to cracks or distortion. It's crucial to tightly control the spacing between sections and the cooling time.

Workshop Practice & Instructions

• Spacing of sections: 10 to 20 mm depending on steel type and weld length.

• Cooling time: At least 30 seconds per welding step to relieve stresses.

• Temperature control: Keep the temperature steady during welding.

MetallurgieSchweißtechnik

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