Stainless steel composite pipes are a new material made by synchronously bonding stainless steel and carbon structural steel through non-destructive pressure. They combine the corrosion resistance, wear resistance, and attractive appearance of stainless steel with the excellent bending strength and impact resistance of carbon steel. Compliant with national energy-saving and popularization principles, these pipes were officially issued in the national standard GB/T18704-2002 in 2002. They have a strict set of management regulations for material quality selection and inspection. Due to their aesthetic appearance, low cost, and other advantages, stainless steel composite pipes are now widely used in bridge guardrails, decoration and renovation, vehicle accessories, conveying roller wheels, and textile machinery parts.