ASTM A312 Thick Walled Stainless Steel Pipe Manufacturer

What are Stainless Steel Thick-Wall Pipes?

Thick-wall stainless steel pipes are heavy-duty tubular products made from austenitic stainless steel alloy with increased wall thickness. Due to the thickness, this SS pipe can easily handle high-pressure applications. It has high corrosion resistance, better strength and pressure handling capacity, and a smooth internal and external surface. The SS thick-wall pipe is mainly used in oil & gas, chemical processing, marine, power generation, and various other industries. As already mentioned, the wall thickness of a SS thick-wall pipe typically ranges from 5 to 65 mm, which helps it handle high-pressure fluid flow. We classify our thick-wall SS pipes according to Schedule 80S, 160, or even thicker.

SS Heavy Wall Thickness Seamless Pipe Production Process

The manufacturing process of our Stainless Heavy Wall Seamless Pipe starts by heating a high-quality SS solid billet and piercing it to form a hollow shell. Then, to get the heavy wall thickness, the shell undergoes hot extrusion. The next step is cold drawing to improve its dimensional accuracy and surface quality. Later, we perform solution annealing to restore the pipe’s mechanical properties. At the end, we perform pickling and straightening, after which the pipe is sent for testing. Kindly visit this page to know more about the manufacturing process.

Key Characteristics & Advantages of Heavy Wall Stainless Steel Pipe in High-Pressure Environments

Here are 5 features and benefits of heavy-wall stainless steel pipe that make it suitable for various applications:

• Enhanced Corrosion Resistance: The high chromium content of the SS thick-wall pipe forms a passive chromium oxide layer when exposed to oxygen, which helps prevent oxidation. Also, many grades like 304 and 316 have nickel, and grades like 316 additionally contain molybdenum, which improve general and localised corrosion resistance (pitting, crevice, etc).
• Longevity in Harsh Conditions: The thick walls of this pipe slow down material degradation. And since our pipe is seamless, it can stay stable under corrosive or cyclic stress conditions.
• Superior Strength and Durability: Thick-wall SS pipe gets its strength and durability from the wall thickness (helps withstand mechanical loads), its seamless nature (maintains uniform grain structure and stress distribution), and the alloy’s high tensile and yield strength.
• Low Maintenance: The seamless pipe has a smooth internal and external finish, which reduces scaling, buildup, and flow obstruction, and its structural hardness reduces repairs caused by cracking, leakage, or deformation.
• Extreme Pressure & Temperature Resilience: This pipe has increased pressure-bearing capacity and good mechanical strength at both high and low temperatures. This makes the pipe provide good pressure and temperature resilience.