Definition and Manufacturing Process of CS Seamless Pipe

Definition of CS Seamless Pipe:

Seamless pipe, abbreviated as SMLS pipe, is a steel pipe made of a single piece of metal with no seams on the surface, which with characteristics of excellent durability and corrosion resistance.

Advantages of CS Seamless Pipe:

1. High strength: The strength of smls pipe is much higher than that of ordinary steel pipe, which can resist greater pressure and is more suitable for construction, petroleum, chemical and other industries.

2. Strong corrosion resistance: Seamless pipes have good corrosion resistance and will not be affected by long-term exposure to corrosive environments.

3. Strong heat resistance:CS seamless pipe has good heat resistance, can withstand high temperature, and is suitable for high temperature environment.

4. Compact structure: The inner and outer walls ofcssmls pipes have uniform thickness and compact structure, which is beneficial to save materials and reduce costs.

Manufacturing Process of CS Seamless Pipe:

- Hot Rolled Seamless Steel Pipe Manufacturing / Production Process

Rolled Round Billets – Examination – Cut Off – Heating – Piercing – Elongation – Slight Tension Reducing – Straightening – Corp End Cutting Off – Visual Inspection – NDT – Hydrostatic Test – Ends Procession – Product Inspection – Painting and Marking – Packing – Warehousing

- Cold Drawn (Rolled) Seamless Steel Pipe Manufacturing / Production Process

Mother pipe (Normally for hot rolled pipe) – Inspection – Annealing – Ends Treatment (Hitting and Drilling hole) – Pickling – Grinding – Phosphorization (Annoit) – Cold Drawn (Rolled) – Degreasing and Cleaning – Heat treatment (Solution treatment) – Straightening – Hydrostatic test – Painting and Marking – Warehousing