Corrosion resistant alloy weldments in carbon steel structures and pipelines to accommodate high axial plastic strains

A method of forming a weld joint between tubular sections, comprising:

• developing a strain-based design based on predicted loads on the weld joint;
• selecting a tubing material for the tubular sections having primarily ferritic properties and a weld material having primarily austenitic properties and a yield strength to tensile strength ratio that is less than 0.75 to form the weld joint based on the predicted loads of the strain-based design;
• and
• joining ends of the tubular sections with a welding process using the primarily austenitic weld material.

A method for designing a strain-based pipeline for transporting hydrocarbons, comprising:

• developing a strain-based design for the pipeline based on predicted loads on the pipeline;
• predicting global plastic strains on the pipeline based on the strain-based design;
• selecting a tubing material having primarily ferritic properties and a weld material having primarily austenitic properties to form a weld joint based on the predicted global plastic strains;
• and
• joining two sections of tubing comprising the tubing material with the weld material to form the weld joint and form at least a portion of the strain-based pipeline.