What are the features of spiral steel pipe factories?

Spiral Steel Pipe Factories:Essential Features You Should Know

Spiral steel pipe factories produce products that are indispensable in our daily lives, yet many people are unfamiliar with their key characteristics. Below, we outline the main features of spiral steel pipe factories to help you better understand them.

1. Corrosion Resistance
Most stainless steel products require excellent corrosion resistance. Spiral steel pipes are widely used in Class I and II applications, such as tableware, kitchenware, water heaters, and water dispensers. Some international buyers even conduct corrosion resistance tests—immersing the pipes in a boiling NaCl solution, then draining, rinsing, and drying them to measure weight loss and determine corrosion levels.

2. Weldability
Welding requirements vary by product. While some items (like certain cookware) may not need welding, most applications—such as Class II tableware, thermos cups, steel pipes, water heaters, and dispensers—demand materials with strong weldability.

3. Polishability
Most stainless steel products undergo polishing during production, except for a few (like water heater linings). Key factors affecting polishability include:

Surface defects (scratches, pitting, dents, etc.)

Material hardness – If too low, polishing becomes difficult (poor BQ finish); if too high, deep drawing may cause orange-peel texture, affecting BQ quality. Optimal hardness ensures better polishability.

These properties make spiral steel pipe factories vital for producing durable, high-performance steel pipes used across industries.



Deep drawing effects – Excessive deformation can lead to micro-pitting or ' RI-DGING ' marks, degrading the BQ finish.http://www.hnftsteels.com